Patent Publication Number: US-2023142319-A1

Title: Semiconductor light-emitting device

Description:
TECHNICAL FIELD 
     The present disclosure relates to a semiconductor light-emitting device. 
     BACKGROUND ART 
     A LiDAR (Light Detection and Ranging or Laser Imaging Detection and Ranging) system using a semiconductor light emitting device has been proposed as a means for 3D distance measurement used in automobiles, for example (see e.g., Patent Document 1). Semiconductor laser devices (semiconductor light emitting devices) used as the light source of LiDAR emit pulsed laser beams with pulse widths of tens of nanoseconds or less. Thus, it is necessary to generate pulse waveforms with a high current change rate, and the inductance component of the current path needs to be made smaller as the pulse width is made narrower. 
     TECHNICAL REFERENCE 
     Patent Document 
     
         
         Patent Document: JP-A-2018-128432 
       
    
     SUMMARY OF THE INVENTION 
     Problems to be Solved by the Invention 
     In light of the above circumstances, an object of the present disclosure is to provide a semiconductor light-emitting device capable of reducing the inductance component. 
     Means for Solving the Problems 
     A semiconductor light-emitting device provided according to the present disclosure includes: a semiconductor light-emitting element having a first element surface and a second element surface facing away from each other in a thickness direction, a first element electrode disposed on the first element surface, and a second element electrode disposed on the second element surface; a sealing resin having a first resin surface and a second resin surface, the first resin surface facing in a first sense of the thickness direction in which the first element surface faces, the second resin surface facing in a second sense of the thickness direction in which the second element surface faces, the sealing resin covering at least the second element surface of the semiconductor light-emitting element; and a conductor forming a conduction path to the semiconductor light-emitting element. The sealing resin has a second cavity extending to the second element electrode in the thickness direction. The conductor includes a first interconnecting portion, a second embedded portion, and a second interconnecting portion. The first interconnecting portion is electrically connected to the first element electrode, is offset from the first element surface in the first sense of the thickness direction, and extends along a direction perpendicular to the thickness direction. The second embedded portion is received in the second cavity and connected to the second element electrode. The second interconnecting portion is connected to the second embedded portion, is offset from the second element surface in the second sense of the thickness direction, and extends along the direction perpendicular to the thickness direction. 
     Advantages of the Invention 
     The above configuration achieves reduction of the inductance component. 
     Other features and advantages of the present disclosure will become apparent from the detailed description given below with reference to the accompanying drawings. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         FIG.  1    is a schematic plan view of a semiconductor light-emitting device according to a first embodiment; 
         FIG.  2    is a plan view of the semiconductor light-emitting device of  FIG.  1   , in which a capacitor is omitted; 
         FIG.  3    is a front view of the semiconductor light-emitting device of  FIG.  1   ; 
         FIG.  4    is a bottom view of the semiconductor light-emitting device of  FIG.  1   ; 
         FIG.  5    is a sectional view taken along line V-V in  FIG.  1   ; 
         FIG.  6    is a sectional view taken along line VI-VI in  FIG.  1   ; 
         FIG.  7    is an enlarged view of a portion of  FIG.  5   ; 
         FIG.  8    is an enlarged view of a portion of  FIG.  5   ; 
         FIG.  9    is a sectional view showing a step in an example of a method for manufacturing the semiconductor light-emitting device of  FIG.  1   ; 
         FIG.  10    is a sectional view showing a step subsequent to  FIG.  9   ; 
         FIG.  11    is an enlarged view of a portion of  FIG.  10   ; 
         FIG.  12    is a sectional view showing a step subsequent to  FIG.  10   ; 
         FIG.  13    is an enlarged view of a portion of  FIG.  12   ; 
         FIG.  14    is a sectional view showing a step subsequent to  FIG.  12   ; 
         FIG.  15    is a sectional view showing a step subsequent to  FIG.  14   ; 
         FIG.  16    is an enlarged view of a portion of  FIG.  15   ; 
         FIG.  17    is a sectional view showing a step subsequent to  FIG.  15   ; 
         FIG.  18    is an enlarged view of a portion of  FIG.  17   ; 
         FIG.  19    is a sectional view showing a step subsequent to  FIG.  17   ; 
         FIG.  20    is a sectional view showing a step subsequent to  FIG.  19   ; 
         FIG.  21    is a circuit diagram of a semiconductor light-emitting system including the semiconductor light-emitting device according to the first embodiment of the present disclosure; 
         FIG.  22    is a sectional view of a semiconductor light-emitting device according to a second embodiment of the present disclosure; 
         FIG.  23    is a sectional view showing a step in an example of a method for manufacturing the semiconductor light-emitting device of  FIG.  22   ; 
         FIG.  24    is a sectional view showing a step subsequent to  FIG.  23   ; 
         FIG.  25    is a schematic plan view of a semiconductor light-emitting device according to a third embodiment of the present disclosure; 
         FIG.  26    is a front view of the semiconductor light-emitting device of  FIG.  25   ; 
         FIG.  27    is a bottom view of the semiconductor light-emitting device of  FIG.  25   ; 
         FIG.  28    is a sectional view taken along line XXVIII-XXVIII in  FIG.  25   ; 
         FIG.  29    is a sectional view taken along line XXIX-XXIX in  FIG.  25   ; 
         FIG.  30    is a partial sectional view taken along line XXX-XXX in  FIG.  25   ; 
         FIG.  31    is a schematic plan view of a semiconductor light-emitting device according to a fourth embodiment of the present disclosure; 
         FIG.  32    is a front view of the semiconductor light-emitting device of  FIG.  31   ; 
         FIG.  33    is a bottom view of the semiconductor light-emitting device of  FIG.  31   ; 
         FIG.  34    is a sectional view taken along line XXXIV-XXXIV in  FIG.  31   ; 
         FIG.  35    is a sectional view taken along line XXXV-XXXV in  FIG.  31   ; 
         FIG.  36    is a sectional view taken along line XXXVI-XXXVI in  FIG.  31   ; 
         FIG.  37    is a schematic plan view of a semiconductor light-emitting device according to a fifth embodiment of the present disclosure; 
         FIG.  38    is a front view of the semiconductor light-emitting device of  FIG.  37   ; 
         FIG.  39    is a bottom view of the semiconductor light-emitting device of  FIG.  37   , in which a switching element is omitted; 
         FIG.  40    is a sectional view taken along line XL-XL in  FIG.  37   ; 
         FIG.  41    is a sectional view taken along line XLI-XLI in  FIG.  37   ; 
         FIG.  42    is a sectional view taken along line XLII-XLII in  FIG.  37   ; 
         FIG.  43    is a schematic plan view of a semiconductor light-emitting device according to a sixth embodiment of the present disclosure; 
         FIG.  44    is a bottom view of the semiconductor light-emitting device of  FIG.  43   , in which a switching element is omitted; 
         FIG.  45    is a front view of the semiconductor light-emitting device of  FIG.  43   ; 
         FIG.  46    is a bottom view of the semiconductor light-emitting device of  FIG.  43   ; 
         FIG.  47    is a sectional view taken along line XLVII-XLVII in  FIG.  43   ; 
         FIG.  48    is a sectional view taken along line XLVIII-XLVIII in  FIG.  43   ; 
         FIG.  49    is a sectional view taken along line XLIX-XLIX in  FIG.  43   ; and 
         FIG.  50    is a sectional view taken along line L-L in  FIG.  43   ; 
     
    
    
     MODE FOR CARRYING OUT THE INVENTION 
     Preferred embodiments of the present disclosure are described below with reference to the accompanying drawings. 
     In the present disclosure, the terms such as “first”, “second”, and “third” are used merely as labels and are not intended to impose ordinal requirements on the items to which these terms refer. 
     In the present disclosure, the phrases “an object A is formed in an object B” and “an object A is formed on an object B” include, unless otherwise specified, “an object A is formed directly in/on an object B” and “an object A is formed in/on an object B with another object interposed between the object A and the object B”. Similarly, the phrases “an object A is disposed in an object B” and “an object A is disposed on an object B” include, unless otherwise specified, “an object A is disposed directly in/on an object B” and “an object A is disposed in/on an object B with another object interposed between the object A and the object B”. Similarly, the phrase “an object A is located on an object B” includes, unless otherwise specified, “an object A is located on an object B in contact with the object B” and “an object A is located on an object B with another object interposed between the object A and the object B”. Also, the phrase “an object A overlaps with an object B as viewed in a certain direction” includes, unless otherwise specified, “the object A overlaps with the entirety of the object B” and “the object A overlaps with a portion of the object B”. 
       FIGS.  1  to  8    show a semiconductor light-emitting device A 1  according to a first embodiment of the present disclosure. The semiconductor light-emitting device A 1  according to the present embodiment includes a semiconductor light-emitting element  1 , a switching element  2 , capacitors  3 , a conductor  4 , a sealing resin  6 , and a light-transmittable resin  7 . The semiconductor light-emitting device A 1  may be used as a pulse laser light source of a lidar system, which is an example of a means for 3D distance measurement. However, the use of the semiconductor light-emitting device A 1  according to the present disclosure is not particularly limited. 
       FIG.  1    is a schematic plan view of the semiconductor light-emitting device A 1 .  FIG.  2    is a plan view of the semiconductor light-emitting device A 1 , in which the capacitors  3  are omitted.  FIG.  3    is a front view of the semiconductor light-emitting device A 1 .  FIG.  4    is a bottom view of the semiconductor light-emitting device A 1 .  FIG.  5    is a sectional view taken along line V-V in  FIG.  1   .  FIG.  6    is a sectional view taken along line VI-VI in  FIG.  1   .  FIG.  7    is an enlarged view of a portion of  FIG.  5   .  FIG.  8    is an enlarged view of a portion of  FIG.  5   . For convenience of description, in  FIGS.  1  to  4   , the sealing resin  6  and the light-transmittable resin  7  are illustrated as transparent, and the outlines of the sealing resin  6  and the light-transmittable resin  7  are shown by imaginary lines, as appropriate. 
     The semiconductor light-emitting device A 1  is generally rectangular as viewed in the thickness direction (i.e., in plan view). For convenience of description, the thickness direction (plan-view direction) of the semiconductor light-emitting device A 1  is referred to as “z direction”, the direction (the horizontal direction in  FIGS.  1  to  8   ) that is orthogonal to the z direction and along one side of the semiconductor light-emitting device A 1  is referred to as “x direction”, and the direction (the vertical direction in  FIGS.  1 ,  2  and  4   ) that is orthogonal to the z direction and the x direction is referred to as “y direction”. The z direction is an example of the “thickness direction”. The size of the semiconductor light-emitting device A 1  is not particularly limited. The terms such as “up” or “down” in the description below are merely used for convenience of description and is not intended to limit the orientation of the semiconductor light-emitting device A 1  of the present disclosure. 
     The semiconductor light-emitting element  1  is the light source of the semiconductor light-emitting device A 1  and includes semiconductor layers, such as an active layer. The semiconductor light-emitting element  1 , which is in the form of a rectangular plate as viewed in the z direction, has a first element surface  11 , a second element surface  12 , a first element electrode  13 , and a second element electrode  14 . The first element surface  11  faces in a first sense of the z direction. The second element surface  12  faces in a second sense of the z direction, facing away from the first element surface  11 . The first element electrode  13  is disposed on the first element surface  11 . In the semiconductor light-emitting device A 1 , the semiconductor light-emitting element  1  is disposed at or near a first end in the x direction (the left end in  FIGS.  1 ,  3  and  5   ) and approximately in the center in the y direction. Also, the semiconductor light-emitting element  1  is offset in the first sense of the z direction. In the present embodiment, the semiconductor light-emitting element  1  emits laser light in a first sense of the x direction (leftward in  FIGS.  1 ,  3  and  5   ). In the figures, the first sense of the z direction is indicated by the arrow z 1 , and the second sense of the z direction is indicated by the arrow z 2 . The type, arrangement, etc. of the semiconductor light-emitting element  1  are not limited to the above. 
     The light-transmittable resin  7  covers portions of the semiconductor light-emitting element  1 . In the present embodiment, the light-transmittable resin  7  covers opposite ends of the semiconductor light-emitting element  1  in the x direction. The shape of the light-transmittable resin  7  is not particularly limited. The light-transmittable resin  7  is made of a material that transmits laser light from the semiconductor light-emitting element  1  and may be made of a transparent epoxy resin or silicone resin, for example. The translucent resin  7  may have a laser light transmittance of 80% or higher. The end surface  71  (left end surface) of the light-transmittable resin  7  on the emission side of the laser light from the semiconductor light-emitting element  1  is not covered with the sealing resin  6 , so that the semiconductor light-emitting device A 1  can emit laser light to the outside through this end surface of the light-transmittable resin  7 . 
     The switching element  2  is an element for turning on and off the current to the semiconductor light-emitting element  1 . The switching element  2  is a transistor, such as a FET made of Si, SiC or GaN, for example. In the present embodiment, a switching element  2  as an Si-MOSFET is described as an example. 
     As shown in  FIGS.  4  to  6   , the switching element  2 , which is in the form of a rectangular plate as viewed in the z direction, has a first switching element surface  21 , a second switching element surface  22 , a drain electrode  231 , a gate electrode  232 , and a source electrode  233 . In the semiconductor light-emitting device A 1 , the switching element  2  is offset in a second sense of the x direction (rightward in  FIGS.  1  and  3  to  6   ) and extends almost entirely along the y direction. The switching element  2  is disposed apart from the semiconductor light-emitting element  1  as viewed in the z direction. Also, the switching element  2  is offset in the first sense of the z direction. The dimension of the switching element  2  in the z direction is larger than that of the semiconductor light-emitting element  1 . The type and position of the switching element  2  are not limited to the above. 
     The first switching element surface  21  faces in the first sense of the z direction. The second switching element surface  22  faces in the second sense of the z direction, facing away from the first switching element surface  21 . The drain electrode  231  is disposed on the first switching element surface  21  and covers the first switching element surface  21  almost entirely in the illustrated example. The gate electrode  232  is disposed on the second switching element surface  22 . In the illustrated example, the gate electrode  232  is disposed in a region of the second switching element surface  22  that is offset in the second sense of the x direction and also offset in the first sense of the y direction. The source electrode  233  is disposed on the second switching element surface  22 . In the illustrated example, the source electrode  233  is L shaped as viewed in the z direction and formed on most region of the second switching element surface  22 . 
     The sealing resin  6  covers at least a portion of each of the semiconductor light-emitting element  1  and the switching element  2 . The sealing resin  6  is made of a material including a thermosetting synthetic resin and an additive containing a metal element, which forms a part of the conductor  4 . Examples of the synthetic resin include epoxy resin and polyimide resin. The sealing resin  6  has a first resin surface  601  and a second resin surface  602 . The first resin surface  601  faces in the first sense of the z direction. The second resin surface  602  faces in the second sense of the z direction, facing away from the first resin surface  601 . 
     The sealing resin  6  includes a first layer  61 , a second layer  62 , and a fourth layer  64 . The first layer  61  has a first surface  611 . The first surface  611  faces in the first sense of the z direction. The first layer  61  overlaps with the semiconductor light-emitting element  1  as viewed in a “in-plane direction” (direction along the x-y plane) perpendicular to the z direction. The second layer  62  is disposed on the second side of the first layer  61  in the z direction. The second layer  62  has a second surface  621 . The second surface  621  faces in the second sense of the z direction. The fourth layer  64  is disposed on the second side of the second layer  62  in the z direction. In the present embodiment, the fourth layer  64  is located on the second side of the first layer  61  and the second layer  62  in the z direction. Thus, the surface of the fourth layer  64  that faces in second sense of the z direction corresponds to the second resin surface  602 . The first layer  61  is located on the first side of the second layer  62  and the fourth layer  64  in the z direction. Thus, the first surface  611  of the first layer  61  corresponds to the first resin surface  601 . 
     The switching element  2  is disposed between the first resin surface  601  and the second resin surface  602  in the z direction (thickness direction). In the present embodiment, the switching element  2  is disposed across the first layer  61  and the second layer  62 . The second layer  62  covers the second element surface  12  of the semiconductor light-emitting element  1  and the second switching element surface  22  of the switching element  2 . 
     Note that adjacent ones of the plurality of layers described above (the first layer  61 , the second layer  62 , and the fourth layer  64 ) may be formed in different steps followed by lamination or may be formed as one piece in the same step. That is, the first layer  61 , the second layer  62 , and the fourth layer  64  are not limited to layers laminated with a clear boundary, but may be layers imaginarily defined to describe the relationship between the sealing resin  6  and other structural elements, such as the semiconductor light-emitting element  1  and the switching element  2 . In the sectional views shown of  FIGS.  5  and  6   , the boundary between adjacent layers formed in different steps followed by lamination is shown by a solid line, and the boundary between adjacent layers formed in the same step is shown by an imaginary line. Such relationship between adjacent layers of the sealing resin  6  holds true for the sectional views for the subsequent embodiments. 
     The sealing resin  6  has a plurality of cavities. The cavities are hollow portions formed along the z direction. Each cavity receives at least one of embedded portions that constitute the conductor  4  described later. In the present embodiment, the sealing resin  6  includes second cavities  652 , third cavities  653 , cavities  671 , cavities  672 , a cavity  673 , and cavities  674 . 
     The second cavities  652  are disposed at a position overlapping with the semiconductor light-emitting element  1  as viewed in the z direction. The second cavities  652  extend from the second surface  621  of the second layer  62  to the second element electrode  14  of the semiconductor light-emitting element  1  in the z direction, and penetrate the second layer  62  in the z direction in the present embodiment. 
     The third cavities  653  are disposed at a position overlapping with the source electrode  233  of the switching element  2  as viewed in the z direction. The third cavities  653  extend from the second surface  621  of the second layer  62  to the source electrode  233  of the switching element  2  in the z direction, and penetrates the second layer  62  in the z direction in the present embodiment. 
     Each of the cavities  671  and  672  penetrates the first layer  61 , the second layer  62  and the fourth layer  64  in the z direction. The cavity  673  is disposed at a position overlapping with the gate electrode  232  of the switching element  2  as viewed in the z direction. The cavity  673  penetrates the second layer  62  and the fourth layer  64  in the z direction, extending from the second resin surface  602  to the gate electrode  232 . The cavities  674  are disposed at a position overlapping with the source electrode  233  as viewed in the z direction. The cavities  674  penetrate the second layer  62  and the fourth layer  64  in the z direction, extending from the second resin surface  602  to the source electrode  233  of the switching element  2 . 
     The conductor  4  is a part that forms a conduction path to the semiconductor light-emitting element  1 , the switching element  2 , etc. The conductor  4  includes a plurality of interconnecting portions and a plurality of embedded portions. Each interconnecting portion is in contact with the sealing resin  6  and extends along the x-y plane. Each embedded portion is received in one of the cavities formed in the sealing resin  6  and connected to at least one of the interconnecting portions. 
     In the present embodiment, the conductor  4  includes a first interconnecting portion  401 , a second interconnecting portion  402 , a third interconnecting portion  403 , an interconnecting portion  412 , an interconnecting portion  413 , an interconnecting portion  414 , an interconnecting portion  415 , second embedded portions  452 , third embedded portions  453 , embedded portions  471 , embedded portions  472 , an embedded portion  473 , and embedded portions  474 . 
     The first interconnecting portion  401  is offset from the first element surface  11  of the semiconductor light-emitting element  1  in the first sense of the z direction. The first interconnecting portion  401  is disposed along the first surface  611  of the first layer  61 . In the semiconductor light-emitting device A 1 , the first interconnecting portion  401  is offset in the first sense of the x direction and extends almost entirely along the y direction. The first interconnecting portion  401  overlaps with the entire semiconductor light-emitting element  1  as viewed in the z direction. The first interconnecting portion  401  is bonded and electrically connected to the first element electrode  13  of the semiconductor light-emitting element  1 . 
     The second interconnecting portion  402  is offset from the second element surface  12  of the semiconductor light-emitting element  1  in the second sense of the z direction. The second interconnecting portion  402  is connected to the second embedded portions  452  and the third embedded portions  453 . The second interconnecting portion  402  is disposed along the second surface  621  of the second layer  62 . In the present embodiment, the second interconnecting portion  402  is located between the second layer  62  and the fourth layer  64 . The second interconnecting portion  402  has a shape adapted to the semiconductor light-emitting element  1  and the switching element  2  as viewed in the z direction. The second interconnecting portion  402  overlaps with a portion of the semiconductor light-emitting element  1  and a portion of the switching element  2 , as viewed in the z direction. 
     The third interconnecting portion  403  is disposed along the first surface  611  of the first layer  61 . The third interconnecting portion  403  is disposed apart and offset from the first interconnecting portion  401  in the second sense of the x direction and extends almost entirely along the y direction. The third interconnecting portion  403  is at the same position as the first interconnecting portion  401  in the z direction. The third interconnecting portion  403  overlaps with the entire switching element  2  as viewed in the z direction. The third interconnecting portion  403  is bonded and electrically connected to the drain electrode  231  of the switching element  2 . 
     The interconnecting portion  412  is disposed along the second resin surface  602 . In the semiconductor light-emitting device A 1 , the interconnecting portion  412  is offset in the first sense of the x direction and extends almost entirely along the y direction. The interconnecting portion  413  is disposed along the second resin surface  602 . The interconnecting portion  413  is offset from the first interconnecting portion  401  in the second sense of the x direction and extends almost entirely along the y direction. The interconnecting portion  414  is disposed along the second resin surface  602 . The interconnecting portion  414  is offset from the interconnecting portion  413  in the second sense of the x direction, and is offset in the first sense of the y direction. The interconnecting portion  415  is disposed along the second resin surface  602 . The interconnecting portion  415  is offset from the interconnecting portion  413  in the second sense of the x direction, and is offset in the second sense of the y direction. 
     The interconnecting portions  412 ,  413 ,  414  and  415 , which are disposed along the second resin surface  602 , are spaced apart from each other. The interconnecting portions  412 ,  413 ,  414  and  415  are used as external connection terminals in mounting the semiconductor light-emitting device A 1  to a circuit board (not shown), for example. 
     The second embedded portions  452  are received in the second cavities  652  and connected to the second element electrode  14  of the semiconductor light-emitting element  1 . In the present embodiment, a plurality of second embedded portions  452  are provided. In the illustrated example, the plurality of second embedded portions  452  are arranged in a matrix along the x direction and the y direction. The third embedded portions  453  are received in the third cavities  653  and connected to the source electrode  233  of the switching element  2 . In the present embodiment, a plurality of third embedded portions  453  are provided. In the illustrated example, the third embedded portions  453  are arranged along the y direction. 
     The embedded portions  471  are received in the cavities  671  and connected to the third interconnecting portion  403  and the interconnecting portion  413 . In the present embodiment, a plurality of embedded portions  471  are provided. In the illustrated example, the embedded portions  471  are arranged along the y direction at each end in the y direction. The embedded portions  472  are received in the cavities  672  and connected to the first interconnecting portion  401  and the interconnecting portion  412 . In the present embodiment, a plurality of embedded portions  472  are provided. In the illustrated example, the embedded portions  472  are arranged along the y direction at each end in the y direction. The embedded portion  473  is received in the cavity  673  and connected to the gate electrode  232  of the switching element  2  and the interconnecting portion  414 . The embedded portions  474  are received in the cavities  674  and connected to the source electrode  233  of the switching element  2  and the interconnecting portion  415 . In the present embodiment, a plurality of embedded portions  474  are provided. In the illustrated example, the embedded portions  474  are arranged along the y direction. 
     Each of the interconnecting portions and the embedded portions (excluding the first interconnecting portion  401  and the third interconnecting portion  403 ) includes a base layer and a plating layer. As an example, the third embedded portion  453  and the second interconnecting portion  402  shown in  FIG.  7    are described below. The base layer  40   a  is composed of a metal element contained in the additive included in the sealing resin  6  (the second layer  62 ) and in contact with the second layer  62 . The plating layer  40   b  is made of a material containing copper (Cu), for example, and in contact with the base layer  40   a . The base layer  40   a  of the third embedded portion  453  is in contact with the second layer  62 . The plating layer  40   b  of the third embedded portion  453  is surrounded by the base layer  40   a  of the third embedded portion  453 . The base layer  40   a  of the second interconnecting portion  402  is in contact with the second layer  62 . The plating layer  40   b  of the second interconnecting portion  402  covers the base layer  40   a  of the second interconnecting portion  402  and is enclosed by the base layer  40   a  of the second interconnecting portion  402  and the fourth layer  64 . As shown in  FIG.  7   , the third embedded portion  453  is tapered, with its side surface inclined with respect to the z direction such that the area of the cross section orthogonal to the z direction becomes smaller as proceeding toward the source electrode  233 . The tapered shape of the third embedded portion  453  results from the manufacturing process of the semiconductor light-emitting device A 1 , which will be described later, and other embedded portions also have a tapered shape. 
     In the embedded portion  474  and the interconnecting portion  415  shown in  FIG.  8   , the base layer  40   a  is composed of a metal element contained in the additive included in the sealing resin  6  (the second layer  62  and the fourth layer  64 ) and in contact with the second layer  62  and the fourth layer  64 . The plating layer  40   b  is in contact with the base layer  40   a . The base layer  40   a  of the third embedded portion  453  is in contact with the second layer  62 . The base layer  40   a  of the embedded portion  474  is in contact with the second layer  62  and the fourth layer  64 . The plating layer  40   b  of the embedded portion  474  is surrounded by the base layer  40   a  of the embedded portion  474 . The base layer  40   a  of the interconnecting portion  415  is in contact with fourth layer  64 . The plating layer  40   b  of the interconnecting portion  415  covers the base layer  40   a  of the interconnecting portion  415  and slightly projects beyond the second resin surface  602  in the second sense of the z direction. 
     The capacitors  3  function to temporarily store the electric charge which is to become the current for energizing the semiconductor light-emitting element  1 . As shown in  FIGS.  5  and  6   , the capacitors  3  are disposed on the first side of the first resin surface  601  in the z direction and entirely exposed from the sealing resin  6 . As shown in  FIGS.  1 ,  5  and  6   , in the illustrated example, each capacitor  3  has an electrode  31  and an electrode  32 . The electrode  31  is bonded and electrically connected to the first interconnecting portion  401  with a conductive bonding material  39 . The electrode  32  is bonded and electrically connected to the third interconnecting portion  403  with a conductive bonding material  39 . Thus, the electrode  31  is electrically connected to the first element electrode  13  via the first interconnecting portion  401 , and the electrode  32  is electrically connected to the drain electrode  231  via the third interconnecting portion  403 . With such a configuration, the capacitors  3  electrically intervenes between the drain electrode  231  and the first element electrode  13 . The conductive bonding material  39  may be solder, for example. For convenience of description, the conductive bonding material  39  is omitted in  FIG.  1   . In the present embodiment, the semiconductor light-emitting device A 1  has two capacitors  3 . The two capacitors  3  are arranged side by side in the y direction and connected in parallel to each other. The number and position of the capacitors  3  are not limited to the above. 
     An example of a method for manufacturing the semiconductor light-emitting device A 1  is described below with reference to  FIGS.  9  to  20   .  FIGS.  9  to  20    each show a step in the example of a method for manufacturing the semiconductor light-emitting device A 1 .  FIGS.  9 ,  10 ,  12 ,  14 ,  15 ,  17 ,  19  and  20    are sectional views corresponding to  FIG.  5   .  FIG.  11    is an enlarged view of a portion of  FIG.  10    and corresponds to  FIG.  7   .  FIG.  13    is an enlarged view of a portion of  FIG.  12    and corresponds to  FIG.  7   .  FIG.  16    is an enlarged view of a portion of  FIG.  15    and corresponds to  FIG.  8   .  FIG.  18    is an enlarged view of a portion of  FIG.  17    and corresponds to  FIG.  8   . 
     First, as shown in  FIG.  9   , a first layer  61  and a second layer  62  are formed to cover the second element electrode  14  of a semiconductor light-emitting element  1 , which is partially covered with a light-transmittable resin  7 , and a switching element  2 . In this step, the semiconductor light-emitting element  1  and the switching element  2  are held upside down as compared to the posture shown in  FIG.  5   . The second layer  62  covers the second element surface  12  of the semiconductor light-emitting element  1  and the second switching element surface  22  of the switching element  2 . The first layer  61  and the second layer  62  are made of a material including a thermosetting synthetic resin and an additive containing a metal element, which later forms a part of the conductor  4 . Examples of the synthetic resin include epoxy resin and polyimide resin. The first layer  61  and the second layer  62  are formed by compression molding. 
     Next, as shown in  FIGS.  10  to  13   , second embedded portions  452  connected to the second element electrode  14  of the semiconductor light-emitting element  1 , third embedded portions  453  connected to the source electrode  233  of the switching element  2 , and a second interconnecting portion  402  connected to the second embedded portions  452  and the third embedded portions are formed. 
     As shown in  FIG.  13   , the third embedded portions  453  are embedded in the third cavities  653  and connected to the source electrode  233 . As shown in  FIG.  13   , each of the third embedded portions  453  and the second interconnecting portion  402  has a base layer  40   a  and a plating layer  40   b . The process of forming the third embedded portions  453  and the second interconnecting portion  402  includes a step of depositing a base layer  40   a  on the surface of the second layer  62  and a step of forming a plating layer  40   b  covering the base layer  40   a.    
     First, as shown in  FIG.  11   , a base layer  40   a  is deposited on the surface of the second layer  62 . In this step, as shown in  FIG.  10   , third cavities  653  and a groove  623  are formed in the second layer  62  with a laser. The third cavities  653  penetrate the second layer  62  in the z direction. The third cavities  653  expose the source electrode  233  of the switching element  2 . 
     The third cavities  653  are formed by irradiating the second layer  62  with a laser beam until the source electrode  233  is exposed while checking the position of the source electrode  233  through image recognition with an infrared camera, for example. The laser irradiation point is corrected as appropriate based on the information on the position of the source electrode  233  obtained through image recognition. The groove  623  is recessed from the surface of the second layer  62  and connected to the third cavities  653 . The groove  623  is formed by irradiating the surface of the second layer  62  with a laser beam. The laser beam may be an ultraviolet laser beam with a wavelength of 355 nm and a beam diameter of 17 μm, for example. By forming the third cavities  653  and the groove  623  in the second layer  62 , the base layer  40   a  is deposited, as shown in  FIG.  11   . The base layer  40   a  covers the wall surface defining the third cavities  653  and the groove  623 . The base layer  40   a  is composed of a metal element contained in the additive included in the second layer  62 . The metal element contained in the additive is excited by laser irradiation. As a result, a metal layer containing the metal element is deposited as the base layer  40   a . Although detailed description is omitted, the second cavities  652  shown in  FIG.  10    is formed in the same manner as the third cavities  653 . The second cavities  652  penetrate the second layer  62  in the z direction. The second cavities  652  expose the second element electrode  14  of the semiconductor light-emitting element  1 . 
     Next, as shown in  FIG.  13   , a plating layer  40   b  covering the base layer  40   a  is formed. The plating layer  40   b  is made of a material containing copper. The plating layer  40   b  may be formed by electroless plating, for example. In this way, as shown in  FIG.  12   , the second embedded portions  452  and the third embedded portions  453  are formed in the second cavities  652  and the third cavities  653 , respectively. The second interconnecting portion  402  is formed in the groove  623 . 
     Next, a fourth layer  64  is formed, as shown in  FIG.  14   . The fourth layer  64  is laminated on the second layer  62  and covers the second interconnecting portion  402 . The fourth layer  64  is made of the same material as the first layer  61  and the second layer  62 . The fourth layer  64  is formed by compression molding. 
     Next, embedded portions  474 , an interconnecting portion  415 , an interconnecting portion  412 , and an interconnecting portion  413  are formed, as shown in  FIGS.  15  to  18   . 
     As shown in  FIG.  18   , the embedded portions  474  are embedded in the cavities  674  and connected to the source electrode  233 . As shown in  FIG.  18   , each of the embedded portions  474  and the interconnecting portion  415  has a base layer  40   a  and a plating layer  40   b . The process of forming the embedded portions  474  and the interconnecting portion  415  includes a step of depositing a base layer  40   a  on the surfaces of the second layer  62  and the fourth layer  64  and a step of forming a plating layer  40   b  covering the base layer  40   a.    
     First, as shown in  FIG.  16   , a base layer  40   a  is deposited on the surfaces of the second layer  62  and the fourth layer  64 . In this step, as shown in  FIG.  15   , cavities  674  and a groove  624  are formed in the second layer  62  with a laser. The cavities  674  penetrate the fourth layer  64  and the second layer  62  in the z direction. The cavities  674  expose the source electrode  233  of the switching element  2 . 
     The cavities  674  are formed by irradiating the fourth layer  64  and the second layer  62  with a laser beam until the source electrode  233  is exposed while checking the position of the source electrode  233  through image recognition with an infrared camera, for example. The laser irradiation point is corrected as appropriate based on the information on the position of the source electrode  233  obtained through image recognition. The groove  624  is recessed from the surface of the fourth layer  64  and connected to the cavities  674 . The groove  624  is formed by irradiating the surface of the fourth layer  64  with a laser beam. The laser beam may be an ultraviolet laser beam with a wavelength of 355 nm and a beam diameter of 17 μm, for example. By forming the cavities  674  and the groove  624  in the second layer  62 , the base layer  40   a  is deposited, as shown in  FIG.  16   . The base layer  40   a  covers the wall surface defining the cavities  674  and the groove  624 . The base layer  40   a  is composed of a metal element contained in the additive included in the second layer  62  and the fourth layer  64 . The metal element contained in the additive is excited by laser irradiation. As a result, a metal layer containing the metal element is deposited as the base layer  40   a . Although detailed description is omitted, the groove  625  and the groove  626  shown in  FIG.  15    are formed in the same manner as the groove  624 . 
     Next, as shown in  FIG.  18   , a plating layer  40   b  covering the base layer  40   a  is formed. The plating layer  40   b  is made of a material containing copper. The plating layer  40   b  may be formed by electroless plating. In this way, as shown in  FIG.  17   , the embedded portions  474  and the interconnecting portion  415  are formed in the cavities  674  and the groove  624 , respectively. The embedded portions  474  and the interconnecting portion  415  are connected to each other. Also, an interconnecting portion  412  and an interconnecting portion  413  are formed in the groove  625  and the groove  626 , respectively. Although not illustrated, the embedded portions  471  and the embedded portions  472  are formed in the same manner as the embedded portions  474  described above. 
     Next, after the laminate of the first layer  61 , the second layer  62  and the fourth layer  64  are turned upside down such that the semiconductor light-emitting element  1  and the switching element  2  are located on the upper side, the first interconnecting portion  401  and the third interconnecting portion  403  are formed, as shown in  FIG.  19   . The first interconnecting portion  401  covers the first element electrode  13  of the semiconductor light-emitting element  1  and a portion of the first resin surface  601 . The third interconnecting portion  403  covers the drain electrode  231  of the switching element  2  and a portion of the first resin surface  601 . The first interconnecting portion  401  and the third interconnecting portion  403  may be formed by electroless plating. 
     Next, capacitors  3  are disposed on the first interconnecting portion  401  and the third interconnecting portion  403 . In this step, the electrode  31  of each capacitor  3  is bonded and electrically connected to the first interconnecting portion  401  via a conductive bonding material  39 , and the electrode  32  is bonded and electrically connected to the third interconnecting portion  403  via a conductive bonding material  39 . Finally, the first layer  61 , the second layer  62  and the fourth layer  64  are cut along predetermined cutting lines CL into a plurality of individual pieces with a dicing blade, for example. This cutting is performed such that each individual piece includes one semiconductor light-emitting element  1 , one switching element  2 , two capacitors  3 , and a conductor  4  (interconnecting portions and embedded portions) connected to these. Through the above process, the semiconductor light-emitting device A 1  is manufactured. 
     As shown in  FIG.  21   , the semiconductor light-emitting device A 1  can be used for a semiconductor light-emitting system B 1 . The semiconductor light-emitting system B 1  includes a gate driver  91 , a DC power supply  92 , a resistor  93  and a diode  94  in addition to the semiconductor light-emitting device A 1 . 
     The gate driver  91  is connected to the gate electrode  232  of the switching element  2  via the interconnecting portion  414  and the embedded portion  473 . The gate driver  91  controls the driving voltage applied to the gate electrode  232 . The DC power supply  92  is a power supply for emitting light from the semiconductor light-emitting element  1 . The anode electrode of the DC power supply  92  is connected to the interconnecting portion  413  via the resistor  93 . The diode  94  is provided between the interconnecting portion  415  and the interconnecting portion  412  to allow the current flow from the interconnecting portion  412  to the interconnecting portion  415 . The diode  94  is provided to achieve charging of the capacitors  3  while preventing the application of excessive reverse voltage to the semiconductor light-emitting element  1 . 
     In the semiconductor light-emitting system B 1  having the above configuration, when the switching element  2  is OFF, the current IC flows from the DC power supply  92  through the resistor  93 , the interconnecting portion  413 , the embedded portions  471 , the third interconnecting portion  403 , the capacitors  3 , the first interconnecting portion  401 , the embedded portions  472 , the interconnecting portion  412  and the diode  94 , whereby the capacitors  3  are charged. When the switching element  2  is ON, the charge stored in the capacitor  3  flows, as the current IL, through the third interconnecting portion  403 , the switching element  2 , the third embedded portions  453 , the second interconnecting portion  402 , the second embedded portions  452 , the semiconductor light-emitting element  1 , and the first interconnecting portion  401 , whereby the semiconductor light-emitting element  1  emits light. 
     The effect and advantages of the present embodiment are described below. 
     According to the present embodiment, the conductor  4 , which forms the conduction path to the semiconductor light-emitting element  1 , includes the first interconnecting portion  401 , the second interconnecting portion  402 , and the second embedded portions  452 . The first interconnecting portion  401  and the second interconnecting portion  402  are disposed along a direction perpendicular to the thickness direction (z direction) of the semiconductor light-emitting element  1  (i.e., along the x-y plane). The first interconnecting portion  401  is offset from first element surface  11  of the semiconductor light-emitting element  1  in the first sense of the z direction and electrically connected to the first element electrode  13  disposed on the first element surface  11 . The second interconnecting portion  402  is offset from the second element surface  12  of the semiconductor light-emitting element  1  in the second sense of the z direction. The second interconnecting portion  402  is electrically connected to the second element electrode  14  disposed on the second element surface  12  via the second embedded portions  452 . At least a portion (the second element surface  12 ) of the semiconductor light-emitting element  1  is covered with the sealing resin  6 , and the conductor  4  (the first interconnecting portion  401 , the second interconnecting portion  402 , and the second embedded portions  452 ) is in contact with the sealing resin  6 . With such a configuration, the conduction path (the first interconnecting portion  401 , the second interconnecting portion  402  and the second embedded portions  452 ) to the first element electrode  13  and the second element electrode  14 , which are disposed on opposite sides of the semiconductor light-emitting element  1 , can be three-dimensionally arranged in a space-efficient manner. Accordingly, the path of the current (the path of the current IL shown in  FIG.  21   ) that flows when the semiconductor light-emitting element  1  emits light can be shortened, and the inductance component of the current path can be reduced. Thus, when the semiconductor light-emitting device A 1  is applied to a pulse laser light source for LiDAR, faster switching is possible, and the peak value of the current (current IL) that flows when the light emitting device  1  emits light can be increased. This is advantageous for emitting laser beams with smaller pulse widths and higher output power. Thus, the semiconductor light-emitting device is desirable as a light source device for LiDAR. 
     The semiconductor light-emitting device A 1  has the switching element  2 . The switching element  2  is at least partially covered with the sealing resin  6  and is disposed across the first layer  61  and the second layer  62 . In contrast, the semiconductor light-emitting element  1  is disposed in the first layer  61  alone. Thus, the second element surface  12  of the semiconductor light-emitting element  1  and the second switching element surface  22  of the switching element  2  are at different positions in the z direction (the thickness direction). In the present embodiment, the second element electrode  14  disposed on the second element surface  12  and the source electrode  233  disposed on the second switching element surface  22  are electrically connected via the second embedded portions  452 , the second interconnecting portion  402 , and the third embedded portions  453 . The second embedded portions  452  are received in the second cavities  652 , which extend to the second element electrode  14  in the z direction, and connected to the second element electrode  14 . The third embedded portions  453  are received in the third cavities  653 , which extend to the source electrode  233  in the z direction, and connected to the source electrode  233 . The second interconnecting portion  402  is disposed along the second surface  621  of the second layer  62  and connected to the second cavities  652  and the third cavities  653 . The second embedded portions  452  and the third embedded portions  453  have a shape along the z direction, and the second interconnecting portion  402  is along the direction perpendicular to the z direction (i.e., along the x-y plane). Thus, the second embedded portions  452 , the second interconnecting portion  402  and the third embedded portions  453 , which form the conduction path between the semiconductor light-emitting element  1  (the second element electrode  14 ) and the source electrode  233 , are not bent. This is suitable for reducing the inductance component of the path of the current flowing through the semiconductor light-emitting device A 1 . 
     In the present embodiment, the second element electrode  14  of the semiconductor light-emitting element  1  and the source electrode  233  of the switching element  2 , which are at different positions in the z direction (the thickness direction) as described above, are electrically connected via the second embedded portions  452 , the second interconnecting portion  402  and the third embedded portions  453 . Such a configuration increases the reliability of conduction between the semiconductor light-emitting element  1  (the second element electrode  14 ) and the source electrode  233 , as compared with electrically connecting the semiconductor light-emitting element and the source electrode using a wire, for example. Moreover, the conduction path formed by the second embedded portions  452 , the second interconnecting portion  402  and the third embedded portions  453  can have a relatively large cross sectional area. This is suitable for reducing the inductance component of the path of the current flowing through the semiconductor light-emitting device A 1 . 
     The third interconnecting portion  403  electrically connected to the drain electrode  231  of the switching element  2  is disposed at the same position as the first interconnecting portion  401  in the z direction. In the present embodiment, the first interconnecting portion  401  is bonded and electrically connected to the first element electrode  13  of the semiconductor light-emitting element  1 , and the third interconnecting portion  403  is bonded and electrically connected to the drain electrode  231 , and the capacitors  3  are mounted on the first interconnecting portion  401  and the third interconnecting portion  403 . With such a configuration, the length of the path from the first element electrode  13  of the semiconductor light-emitting element  1  to the drain electrode  231  through the first interconnecting portion  401 , the capacitors  3 , and the third interconnecting portion  403  is relatively short. This is suitable for reducing the inductance component of the path of the current flowing through the semiconductor light-emitting device A 1 . 
     The semiconductor light-emitting element  1  and the switching element  2  are disposed apart from each other as viewed in the z direction. Such a configuration can reduce the dimension of the semiconductor light-emitting device A 1  in the z direction (thickness direction). Accordingly, the path of the current that flows when the semiconductor light-emitting element  1  emits light can be shortened, which is suitable for reducing the inductance component of the current path. 
     The second interconnecting portion  402  is disposed between the second layer  62  and the fourth layer  64 . With such a configuration, the second interconnecting portion  402  can be disposed so as to overlap with external connection terminals (the interconnecting portion  412 , the interconnecting portion  413 , etc.) disposed on the second resin surface  602 . This is suitable for reducing the size of the semiconductor light-emitting device A 1  as viewed in the z direction. 
     Unlike the present embodiment, when the parts such as a semiconductor light-emitting element, a switching element, and a capacitor are arranged two-dimensionally on a substrate and sealed with a resin, connecting these parts involves an increase in size of the semiconductor light-emitting device as viewed in the thickness direction. This may lead to an increased length of the path of the current that flows when the semiconductor light-emitting element emits light. Moreover, electrical connection of the parts requires the use of a wire. Thus, the inductance component cannot be reduced when the parts are arranged two-dimensionally on a substrate and sealed with resin. In contrast, in the semiconductor light-emitting device A 1  of the present embodiment, the semiconductor light-emitting element  1  and the switching element  2  are covered inside the sealing resin  6 . This allows mounting the capacitors  3  three-dimensionally so as to overlap with the semiconductor light-emitting element  1  or the switching element  2  as viewed in the z direction (the thickness direction). This is suitable for shortening the path of the current that flows when the semiconductor light-emitting element  1  emits light, and hence is suitable for reducing the inductance component of the current path. Moreover, the conductor  4 , which forms the conduction path to the semiconductor light-emitting element  1  and the switching element  2 , is constituted by a plurality of interconnecting portions and a plurality of embedded portions, and electrical connection using a wire is not necessary. This reduces the inductance component of the path of the current flowing through the semiconductor light-emitting element  1  and improves the yield (the percentage of non-defective products) of the semiconductor light emitting device A 1 . 
       FIG.  22    shows a semiconductor light-emitting device according to a second embodiment of the present disclosure. The semiconductor light-emitting device A 2  of the present embodiment differs from the semiconductor light-emitting device A 1  in that the sealing resin  6  includes an additional layer, and accordingly the conductor  4  includes additional portions.  FIG.  22    is a sectional view of the semiconductor light-emitting device A 2 . In  FIG.  22    and subsequent drawings, the elements that are identical or similar to those of the semiconductor light-emitting device A 1  of the foregoing embodiment are denoted by the same reference signs, and the description thereof is omitted as appropriate. 
     In the present embodiment, the sealing resin  6  includes a third layer  63  in addition to the first layer  61 , the second layer  62  and the fourth layer  64 . The third layer  63  is disposed on the first side of the first layer  61  in the z direction. The third layer  63  has a third surface  631  and a fourth surface  632 . The third surface  631  faces in the first sense of the z direction, and the fourth surface  632  faces in the second sense of the z direction. The third layer  63  covers the first element surface  11  of the semiconductor light-emitting element  1  and the first switching element surface  21  of the switching element  2 . The third layer  63  is made of a material including a thermosetting synthetic resin and an additive containing a metal element, which forms a part of the conductor  4 . In the present embodiment, the third layer  63  is located on the first side of the first layer  61 , the second layer  62  and the fourth layer  64  in the z direction. Thus, the third surface  631  corresponds to the first resin surface  601 . 
     The third layer  63  has a first cavity  651  and a fourth cavity  654 . In the present embodiment, the third layer  63  is formed with a plurality of first cavities  651  and a plurality of fourth cavities  654 . The first cavities  651  are disposed at a position overlapping with the semiconductor light-emitting element  1  as viewed in the z direction. The first cavities  651  extend from the third surface  631  to the first element electrode  13  of the semiconductor light-emitting element  1  in the z direction, penetrating the third layer  63  in the z direction in the present embodiment. The fourth cavities  654  are disposed at a position overlapping with the switching element  2  as viewed in the z direction. The fourth cavities  654  extend from the third surface  631  to the drain electrode  231  of the switching element  2  in the z direction, penetrating the third layer  63  in the z direction in the present embodiment. 
     In the present embodiment, the conductor  4  further includes first embedded portions  451  and fourth embedded portions  454 , as compared with the semiconductor light-emitting device A 1  according to the first embodiment. The first interconnecting portion  401  and the third interconnecting portion  403  are disposed along the third surface  631  of the third layer  63 . 
     The first embedded portions  451  are received in the first cavities  651  and connected to the first element electrode  13  of the semiconductor light-emitting element  1  and the first interconnecting portion  401 . The fourth embedded portions  454  are received in the fourth cavities  654  and connected to the drain electrode  231  of the switching element  2  and the third interconnecting portion  403 . 
     In the present embodiment, each of the interconnecting portions and the embedded portions (including the first interconnecting portion  401  and the third interconnecting portion  403 ) includes a base layer and a plating layer. The lamination state of the base layer and the plating layer in each of the interconnecting portions and the embedded portions is the same as that described as to the semiconductor light-emitting device A 1  of the first embodiment with reference to  FIGS.  7  and  8   . 
     An example of a method for manufacturing the semiconductor light-emitting device A 2  is described below with reference to  FIGS.  23  and  24   .  FIGS.  23  and  24   , which are sectional views corresponding to  FIG.  22   , each show a step in the example of a method for manufacturing the semiconductor light-emitting device A 2 . 
     The method for manufacturing the semiconductor light-emitting device A 2  is partially the same as that for the semiconductor light-emitting device A 1  of the foregoing embodiment. In the present embodiment, after the step shown in  FIG.  17    as to the method for manufacturing the semiconductor light-emitting device A 1 , the step shown in  FIG.  23    is performed. In the step shown in  FIG.  23   , after the laminate of the first layer  61 , the second layer  62  and the fourth layer  64  is turned upside down such that the semiconductor light-emitting element  1  and the switching element  2  are located on the upper side, the third layer  63  is formed. The third layer  63  is laminated on the first layer  61  to cover the first element electrode  13  of the semiconductor light-emitting element  1  and the drain electrode  231  of the switching element  2 . Next, first cavities  651 , fourth cavities  654 , a groove  635  and a groove  636  are formed in the third layer  63  with a laser, as shown in  FIG.  23   . The laser beam may be an ultraviolet laser beam with a wavelength of 355 nm and a beam diameter of 17 μm, for example. 
     Although detailed description is omitted, forming the first cavities  651 , the fourth cavities  654 , the groove  635  and the groove  636  results in deposition of the base layer  40   a . The base layer covers the wall surfaces defining each of the first cavities  651  and fourth cavities  654 , and the grooves  635  and  636 . The base layer is composed of a metal element contained in the additive included in the third layer  63 . The metal element contained in the additive is excited by laser irradiation. As a result, a metal layer containing the metal element is deposited as the base layer. 
     Next, as shown in  FIG.  24   , first embedded portions  451 , fourth embedded portions  454 , a first interconnecting portion  401  and a third interconnecting portion  403  are formed in the first cavities  651 , the fourth cavities  654 , the groove  635  and the groove  636 , respectively. Although not illustrated, the fourth embedded portions  454 , the first interconnecting portion  401  and the third interconnecting portion  403  are provided by forming plating layers covering the base layers described with reference to  FIG.  23   . 
     Next, capacitors  3  are mounted on the first interconnecting portion  401  and the third interconnecting portion  403 , and finally, the third layer  63 , the first layer  61 , the second layer  62  and the fourth layer  64  are cut along predetermined cutting lines into a plurality of individual pieces with a dicing blade, for example. Through the above process, the semiconductor light-emitting device A 2  is manufactured. 
     According to the semiconductor light-emitting device A 2  of the present embodiment, the conduction path (the first interconnecting portion  401 , the first embedded portions  451 , the second interconnecting portion  402  and the embedded portions  452 ) to the first element electrode  13  and the second element electrode  14 , which are disposed on opposite sides of the semiconductor light-emitting element  1 , can be three-dimensionally arranged in a space-efficient manner. Accordingly, the path of the current that flows when the semiconductor light-emitting element  1  emits light can be shortened, and hence, the inductance component of the current path can be reduced. The semiconductor light-emitting device A 2  also has other advantages similar to those of the semiconductor light-emitting device A 1  of the foregoing embodiment. 
       FIGS.  25  to  29    show a semiconductor light-emitting device according to a third embodiment of the present disclosure. The semiconductor light-emitting device A 3  of the present embodiment differs greatly from the semiconductor light-emitting device A 1  in structure and arrangement of the capacitor  3 . Also, the structure of the conductor  4  (the conduction path to the semiconductor light-emitting element  1  and the switching element  2 ) and the structure of the sealing resin  6  are different from the foregoing embodiment. 
       FIG.  25    is a schematic plan view of the semiconductor light-emitting device A 3 .  FIG.  26    is a front view of the semiconductor light-emitting device A 3 .  FIG.  27    is a bottom view of the semiconductor light-emitting device A 3 .  FIG.  28    is a sectional view taken along line XXVIII-XXVIII in  FIG.  25   .  FIG.  29    is a sectional view taken along line XXIX-XXIX in  FIG.  25   .  FIG.  30    is a partial sectional view taken along line XXX-XXX in  FIG.  25   . For convenience of description, in  FIGS.  25  to  27   , the sealing resin  6  and the light-transmittable resin  7  are illustrated as transparent, and the outlines of the sealing resin  6  and the light-transmittable resin  7  are shown by imaginary lines, as appropriate. 
     In the present embodiment, the arrangement of the semiconductor light-emitting element  1  and the switching element  2  are different from the foregoing embodiment. In the semiconductor light-emitting device A 3 , the semiconductor light-emitting element  1  is disposed at or near the first end (the left end in  FIGS.  25  to  28   ) in the x direction and offset in the first sense of the y direction (downward in  FIG.  25    and upward in  FIG.  27   ). Also, the semiconductor light-emitting element  1  is offset in the second sense of the z direction. 
     In the semiconductor light-emitting device A 3 , the switching element  2  is offset in the second sense of the x direction (rightward in  FIGS.  25  to  28   ) and extends almost entirely along the y direction. The switching element  2  is disposed apart from the semiconductor light-emitting element  1  as viewed in the z direction. The switching element  2  is offset in the second sense of the z direction. 
     The drain electrode  231  of the switching element  2  covers the first switching element surface  21  almost entirely. The gate electrode  232  is disposed on the second switching element surface  22 , and in the illustrated example, in a region of the second switching element surface  22  that is offset in the second sense of the x direction and also offset in the first sense of the y direction. Source electrodes  233  are disposed on the second switching element surface  22 . In the illustrated example, two source electrodes  233  are provided. One of the source electrodes  233  is disposed on the second switching element surface  22  at a position offset in the first sense of the x direction and in the form of a rectangle elongated in the y direction. The other source electrodes  233  is disposed on the second switching element surface  22  at a position offset in the second sense of the x direction and elongated in the y direction. In this source electrode  233 , the corner on the second side in the x direction and on the second side in the y direction is cut away such that the gate electrode  232  is disposed. 
     The capacitor  3  is in the form of a rectangular plate as viewed in the z direction. The capacitor  3  has an electrode  31  and an electrode  32 . In the present embodiment, the electrode  31  and the electrode  32  are disposed on opposite sides of the capacitor  3  in the z direction (the thickness direction). The electrode  31  is disposed on the surface of the capacitor  3  which faces in the first sense of the z direction, and the electrode  32  is disposed on the surface of the capacitor  3  which faces in the second sense of the z direction. In the present embodiment, the capacitor  3  is a thin silicon capacitor. 
     In the semiconductor light-emitting device A 3 , the capacitor  3  is disposed approximately in the center in the x direction and offset in the first sense of the y direction (downward in  FIG.  25    and upward in  FIG.  27   ). Also, the capacitor  3  is offset in the first sense of the z direction. The size of the capacitor  3  as viewed in the z direction is smaller than that of the switching element  2 . The switching element  2  and the capacitor  3  overlap with each other as viewed in the z direction. In the present embodiment, the switching element  2  overlaps with the entire capacitor  3  as viewed in the z direction. 
     The sealing resin  6  covers at least a part of each of the semiconductor light-emitting element  1 , the switching element  2  and the capacitor  3 . The sealing resin  6  is made of a material including a thermosetting synthetic resin and an additive containing a metal element, which forms a part of the conductor  4 . Examples of the synthetic resin include epoxy resin and polyimide resin. 
     In the present embodiment, the sealing resin  6  includes a first layer  61 , a second layer  62 , and a third layer  63 . The second layer  62  is disposed on the second side of the first layer  61  in the z direction. The switching element  2  is disposed across the first layer  61  and the second layer  62 . The third layer  63  is disposed on the first side of the first layer  61  in the z direction. The third layer  63  has a third surface  631  and a fourth surface  632 . The third surface  631  faces in the first sense of the z direction, and the fourth surface  632  faces in the second sense of the z direction. The third layer  63  covers the capacitor  3 . The capacitor  3  is disposed between the third surface  631  and the fourth surface  632  in the z direction. In the present embodiment, the third layer  63  is located on the first side of the first layer  61  and the second layer  62  in the z direction. Thus, the third surface  631  of the third layer  63  corresponds to the first resin surface  601 . The second layer  62  is located on the second side of the first layer  61  and the third layer  63  in the z direction. Thus, the second surface  621  of the second layer  62  corresponds to the second resin surface  602 . 
     In the present embodiment, the third layer  63  includes a lower layer  63 A and an upper layer  63 B. The lower layer  63 A is laminated on the first surface  611  of the first layer  61 . The upper layer  63 B is laminated on the lower layer  63 A. The upper layer  63 B has the third surface  631 , and the lower layer  63 A has the fourth surface  632 . The lower layer  63 A and the upper layer  63 B are formed in different steps. 
     In the present embodiment, the sealing resin  6  has a plurality of first cavities  651 , a plurality of second cavities  652 , a plurality of third cavities  653 , a plurality of fifth cavities  655 , a plurality of sixth cavities  656 , a plurality of cavities  675 , a cavity  676 , a cavity  677 , and a cavity  678 . 
     The first cavities  651  are disposed at a position overlapping with semiconductor light-emitting element  1  as viewed in the z direction. The first cavities  651  extend from the third surface  631  to the first element electrode  13  of the semiconductor light-emitting element  1  in the z direction, penetrating the third layer  63  (the lower layer  63 A and the upper layer  63 B) in the z direction in the present embodiment. 
     The second cavities  652  are disposed at a position overlapping with semiconductor light-emitting element  1  as viewed in the z direction. The second cavities  652  extend from the second surface  621  of the second layer  62  to the second element electrode  14  of the semiconductor light-emitting element  1  in the z direction, penetrating the second layer  62  in the z direction in the present embodiment. 
     The third cavities  653  are disposed at a position overlapping with the source electrode  233  of the switching element  2  as viewed in the z direction. The third cavities  653  extend from the second surface  621  of the second layer  62  to the source electrode  233  in the z direction, penetrating the second layer  62  in the z direction in the present embodiment. 
     The fifth cavities  655  are disposed at a position overlapping with the capacitor  3  as viewed in the z direction. The fifth cavities  655  extend from the third surface  631  of the third layer  63  to the electrode  31  of the capacitor  3  in the z direction, penetrating the third layer  63  (the upper layer  63 B) in the z direction in the present embodiment. 
     The sixth cavities  656  are disposed at a position overlapping with the capacitor  3  as viewed in the z direction. The sixth cavities  656  extend from the electrode  31  of the capacitor  3  to the drain electrode  231  of the switching element  2  in the z direction, penetrating the third layer  63  (the lower layer  63 A) in the z direction in the present embodiment. 
     The cavities  675  are disposed at a position overlapping with the switching element  2  as viewed in the z direction. The cavities  675  extend from the third surface  631  to the drain electrode  231  in the z direction, penetrating the third layer  63  (the lower layer  63 A and the upper layer  63 B) in the z direction. The cavity  676  is disposed at a position overlapping with the gate electrode  232  of the switching element  2 , as viewed in the z direction. The cavity  676  extends from the second surface  621  of the second layer  62  to the gate electrode  232  in the z direction, penetrating the second layer  62  in the z direction in the present embodiment. The cavity  677  and the cavity  678  each penetrate the first layer  61 , the second layer  62 , and the third layer  63  (the lower layer  63 A and the upper layer  63 B) in the z direction. 
     In the present embodiment, the conductor  4  includes a first interconnecting portion  401 , a second interconnecting portion  402 , an interconnecting portion  416 , an interconnecting portion  417 , an interconnecting portion  418 , an interconnecting portion  419 , first embedded portions  451 , second embedded portions  452 , third embedded portions  453 , fifth embedded portions  455 , sixth embedded portions  456 , embedded portions  475 , an embedded portion  476 , an embedded portion  477  and an embedded portion  478 . 
     The first interconnecting portion  401  is offset from the first element surface  11  of the semiconductor light-emitting element  1  in the first sense of the z direction. The first interconnecting portion  401  is disposed along the third surface  631  (the first resin surface  601 ) of the third layer  63 . The first interconnecting portion  401  is provided in most region of the semiconductor light-emitting device A 3 , excluding the corner on the second side in the x direction (the right side in  FIG.  25   ) and on the second side in the y direction (the upper side in  FIG.  25   ), as viewed in the z direction. The first interconnecting portion  401  overlaps with the entire semiconductor light-emitting element  1  and a portion of the switching element  2  as viewed in the z direction. 
     The interconnecting portion  416  is disposed along the third surface  631  (the first resin surface  601 ) of the third layer  63 . The interconnecting portion  416  is disposed in the corner on the second side in the x direction (the right side in  FIG.  25   ) and on the second side in the y direction (the upper side in  FIG.  25   ) of the semiconductor light-emitting device A 3 , as viewed in the z direction. The interconnecting portion  416  overlaps with a portion of the switching element  2  as viewed in the z direction. 
     The second interconnecting portion  402  is offset from the second element surface  12  of the semiconductor light-emitting element  1  in the second sense of the z direction. The second interconnecting portion  402  is disposed along the second surface  621  of the second layer  62  (the second resin surface  602 ). The second interconnecting portion  402  is disposed in a region of the semiconductor light-emitting device A 3  which excludes a portion close to the edge on the second side in the x direction. The second interconnecting portion  402  overlaps with the entire semiconductor light-emitting element  1  and a portion of the switching element  2  as viewed in the z direction. 
     The interconnecting portion  417  is disposed along the second surface  621  of the second layer  62  (the second resin surface  602 ). The interconnecting portion  417  is disposed at a position offset in the second sense of the x direction (rightward in  FIG.  27   ) and also offset in the first sense of the y direction (upward in  FIG.  27   ), as viewed in the z direction. The interconnecting portion  417  overlaps with a portion of the switching element  2  (the gate electrode  232 ) as viewed in the z direction. 
     The interconnecting portion  418  is disposed along the second surface  621  of the second layer  62  (the second resin surface  602 ). The interconnecting portion  418  is disposed in the corner on the second side in the x direction and on the first side in the y direction, as viewed in the z direction. 
     The interconnecting portion  419  is disposed along the second surface  621  of the second layer  62  (the second resin surface  602 ). The interconnecting portion  419  is disposed in the corner on the second side in the x direction and on the second side in the y direction, as viewed in the z direction. 
     The second interconnecting portion  402 , the interconnecting portion  417 , the interconnecting portion  418  and the interconnecting portion  419 , which are disposed along the second surface  621  of the second layer  62  (the second resin surface  602 ), are spaced apart from each other. The second interconnecting portion  402  and the interconnecting portions  417 ,  418  and  419  are used as external connection terminals in mounting the semiconductor light-emitting device A 3  to a circuit board (not shown), for example. 
     The first embedded portions  451  are received in the first cavities  651  and connected to the first element electrode  13  of the semiconductor light-emitting element  1  and the first interconnecting portion  401 . In the present embodiment, a plurality of first embedded portions  451  are provided. In the illustrated example, the first embedded portions  451  are arranged along the x direction. 
     The second embedded portions  452  are received in the second cavities  652  and connected to the second element electrode  14  of the semiconductor light-emitting element  1  and the second interconnecting portion  402 . In the present embodiment, a plurality of second embedded portions  452  are provided. In the illustrated example, the second embedded portions  452  are arranged along the x direction. 
     The third embedded portions  453  are received in the third cavities  653  and connected to the source electrode  233  of the switching element  2  and the second interconnecting portion  402 . In the present embodiment, a plurality of third embedded portions  453  are provided. In the illustrated example, the third embedded portions  453  are arranged in a matrix along the x direction and the y direction. 
     The fifth embedded portions  455  are received in the fifth cavities  655  and connected to the electrode  31  of the capacitor  3  and the first interconnecting portion  401 . In the present embodiment, a plurality of fifth embedded portions  455  are provided. In the illustrated example, the fifth embedded portions  455  are arranged in a matrix along the x direction and the y direction. 
     The sixth embedded portions  456  are received in the sixth cavities  656  and connected to the drain electrode  231  of the switching element  2  and the electrode  32  of the capacitor  3 . In the present embodiment, a plurality of sixth embedded portions  456  are provided. In the illustrated example, the sixth embedded portions  456  are arranged in a matrix along the x direction and the y direction. 
     The embedded portions  475  are received in the cavities  675  and connected to the drain electrode  231  and the interconnecting portion  416 . In the present embodiment, a plurality of embedded portions  475  are provided. In the illustrated example, the embedded portions  475  are arranged along the y direction. The embedded portion  476  is received in the cavity  676  and connected to the gate electrode  232  and the interconnecting portion  417 . The embedded portion  477  is received in the cavity  677  and connected to the first interconnecting portion  401  and the interconnecting portion  418 . The embedded portion  478  is received in the cavity  678  and connected to the interconnecting portion  416  and the interconnecting portion  419 . 
     Although not shown in detail, each of the interconnecting portions and the embedded portions has a base layer and a plating layer. The base layer is composed of a metal element contained in the additive included in the sealing resin  6  (the first layer  61 , the second layer  62  and the third layer  63 ). 
     The process of manufacturing the semiconductor light-emitting device A 3  is the same as that of the semiconductor light-emitting device A 1  until the first layer  61  and the second layer  62  are formed by compression molding and the embedded portions and interconnecting portions are formed at predetermined positions in the second layer  62 . Thereafter, the first layer  61  and the second layer  62 , each in the form of a plate, are turned upside down, and the lower layer  63 A is formed. The lower layer  63 A is laminated on the first layer  61  and covers the first element electrode  13  of the semiconductor light-emitting element  1  and the drain electrode  231  of the switching element  2 . The lower layer  63 A is formed by compression molding. Next, the sixth cavities  656  are formed in the lower layer  63 A with a laser, causing base layers to be deposited on the wall surfaces defining the sixth cavities  656 . Next, plating layers covering the base layers are formed to provide the sixth embedded portions  456 . Next, a capacitor  3  is disposed at a predetermined position on the lower layer  63 A, and an upper layer  63 B laminated on the lower layer  63 A is formed. In disposing the capacitor  3 , the electrode  32  of the capacitor  3  and the sixth embedded portions  456  may be bonded with a conductive bonding material such as silver paste, for example. The upper layer  63 B is formed by compression molding. Next, a plurality of fifth cavities  655  are formed in the upper layer  63 B with a laser. Also, first cavities  651  and cavities  675  are formed in the upper layer  63 B and the lower layer  63 A with a laser, a cavity  677  and a cavity  678  are formed in the upper layer  63 B, the lower layer  63 A, the first layer  61  and the second layer  62  with a laser, and a plurality of grooves are formed in the third surface  631  of the third layer  63  (the first resin surface  601 ) with a laser. By this process, base layers are deposited in these cavities and grooves. Next, plating layers covering these base layers are formed to provide the first embedded portions  451 , the fifth embedded portions  455 , the embedded portions  475 , the embedded portion  477 , the embedded portion  478 , the first interconnecting portion  401  and the interconnecting portion  416 . Thereafter, the third layer  63 , the first layer  61 , and the second layer  62  are cut along predetermined cutting lines into a plurality of individual pieces. Through the above process, the semiconductor light-emitting device A 3  is manufactured. 
     Although not shown in the figures, the semiconductor light-emitting device A 3  can be connected to e.g. an external DC power supply. In that case, when the switching element  2  is OFF, current flows from the DC power supply to the capacitor  3  so that the capacitor  3  is charged. When the switching element  2  is ON, the current due to the electrical charge stored in the capacitor  3  flows through the path of the sixth embedded portions  456 , the switching element  2 , the third embedded portions  453 , the second interconnecting portion  402 , the second embedded portions  452 , the semiconductor light-emitting element  1 , the first embedded portions  451 , the first interconnecting portion  401 , and the fifth embedded portions  455 , making the semiconductor light-emitting element  1  emit light. 
     In the semiconductor light-emitting device A 3  of the present embodiment, the conductor  4  forming the conduction path to the semiconductor light-emitting element  1  includes the first interconnecting portion  401 , the first embedded portions  451 , the second interconnecting portion  402  and the second embedded portions  452 . The first interconnecting portion  401  is electrically connected to the first element electrode  13  of the semiconductor light-emitting element  1  via the first embedded portions  451 . The second interconnecting portion  402  is electrically connected to the second element electrode  14  of the semiconductor light-emitting element  1  via the second embedded portions  452 . At least a portion (the second element surface  12 ) of the semiconductor light-emitting element  1  is covered with the sealing resin  6 , and the conductor  4  (the first interconnecting portion  401 , the second interconnecting portion  402 , and the second embedded portions  452 ) is in contact with the sealing resin  6 . With such a configuration, the conduction path (the first interconnecting portion  401 , the first embedded portions  451 , the second interconnecting portion  402  and the second embedded portions  452 ) to the first element electrode  13  and the second element electrode  14 , which are disposed on opposite sides of the semiconductor light-emitting element  1 , can be three-dimensionally arranged in a space-efficient manner. Accordingly, the path of the current that flows when the semiconductor light-emitting element  1  emits light can be shortened, and hence, the inductance component of the current path can be reduced. 
     At least a portion of each of the switching element  2  and the capacitor  3  is covered with the sealing resin  6 . The conductor  4  includes the fifth embedded portions  455  and the sixth embedded portions  456  that are arranged along the z direction. The fifth embedded portions  455  are connected to the first interconnecting portion  401  and the electrode  31  of the capacitor  3 , and the sixth embedded portions  456  are connected to the electrode  32  of the capacitor  3  and the drain electrode  231  of the switching element  2 . With such a configuration, the length of the path from the first element electrode  13  of the semiconductor light-emitting element  1  to the drain electrode  231  through the first embedded portions  451 , the first interconnecting portion  401 , the fifth embedded portions  455 , the capacitor  3  and the sixth embedded portions  456  can be made relatively short. This is suitable for reducing the inductance component of the path of the current flowing through the semiconductor light-emitting device A 3 . 
     The sealing resin  6  includes the third layer  63  laminated on the first side of the first layer  61  in the z direction, and the capacitor  3  is disposed between the third surface  631  and the fourth surface  632  of the third layer  63  in the z direction. As the capacitor  3 , a thin silicon capacitor is used. With such a configuration, the capacitor  3  is embedded in the sealing resin  6  along with the semiconductor light-emitting element  1  and the switching element  2  to be arranged three dimensionally in a space-efficient manner. In the present embodiment, the semiconductor light-emitting element  1  and the switching element  2  are disposed apart from each other as viewed in the z direction. The switching element  2  overlaps with the entire capacitor  3  as viewed in the z direction. Such a configuration makes it possible to reduce the dimension of the semiconductor light-emitting device A 3  in the z direction (the thickness direction) while also reducing the size of the semiconductor light-emitting device A 3  as viewed in the z direction. This is suitable for shortening the path of the current that flows when the semiconductor light-emitting element  1  emits light, and hence is suitable for reducing the inductance component of the current path. 
     Moreover, the conductor  4 , which forms the conduction path to the semiconductor light-emitting element  1  and the switching element  2 , is constituted by a plurality of interconnecting portions and a plurality of embedded portions, and electrical connection using a wire is not necessary. This reduces the inductance component of the path of the current flowing through the semiconductor light-emitting device A 3  and improves the yield (the percentage of non-defective products) of the semiconductor light emitting device A 3 . 
       FIGS.  31  to  36    show a semiconductor light-emitting device according to a fourth embodiment of the present disclosure. The semiconductor light-emitting device A 4  of the present embodiment differs from the semiconductor light-emitting device A 3  mainly in structure of a portion of the conductor  4  and structure of the sealing resin  6 . 
       FIG.  31    is a schematic plan view of the semiconductor light-emitting device A 4 .  FIG.  32    is a front view of the semiconductor light-emitting device A 4 .  FIG.  33    is a bottom view of the semiconductor light-emitting device A 4 .  FIG.  34    is a sectional view taken along line XXXIV-XXXIV in  FIG.  31   .  FIG.  35    is a sectional view taken along line XXXV-XXXV in  FIG.  31   .  FIG.  36    is a sectional view taken along line XXXVI-XXXVI in  FIG.  31   . For convenience of description, in  FIGS.  31  to  33   , the sealing resin  6  and the light-transmittable resin  7  are illustrated as transparent, and the outlines of the sealing resin  6  and the light-transmittable resin  7  are shown by imaginary lines, as appropriate. 
     In the semiconductor light-emitting device A 4  of the present embodiment, the sealing resin  6  includes a first layer  61 , a second layer  62 , and a third layer  63 , as with the semiconductor light-emitting device A 3 . Although the third layer  63  includes the lower layer  63 A and the upper layer  63 B in the semiconductor light-emitting device A 3 , the third layer  63  of the present embodiment is a single layer. In the present embodiment, the dimension of the third layer  63  in the z direction (thickness direction) is smaller than that of the third layer  63  of the semiconductor light-emitting device A 3 . 
     The conductor  4  does not include the sixth embedded portions  456 , which is a difference from the semiconductor light-emitting device A 3 . The capacitor  3  is disposed to stack on the switching element  2 . As shown in  FIG.  34   , in the illustrated example, the electrode  32  of the capacitor  3  is bonded and electrically connected to the drain electrode  231  with a conductive bonding material  39 . The conductive bonding material  39  may be silver paste, for example. 
     Unlike the process of manufacturing the semiconductor light-emitting device A 3 , the process of manufacturing the semiconductor light-emitting device A 4  does not include the steps of forming the lower layer  63 A and forming the sixth embedded portions  456 . The process of manufacturing the semiconductor light-emitting device A 4  is the same as that of the semiconductor light-emitting device A 1  until the first layer  61  and the second layer  62  are formed by compression molding and the embedded portions and interconnecting portions are formed at predetermined positions in the second layer  62 . Thereafter, the first layer  61  and the second layer  62 , each in the form of a plate, are turned upside down, and the electrode  32  of the capacitor  3  is bonded to the drain electrode  231 , which is exposed from the first layer  61 , with a conductive bonding material  39 . Next, the third layer  63  is formed on the first layer  61 . The third layer  63  is a single layer and covers the first element electrode  13  of the semiconductor light-emitting element  1  and the drain electrode  231  of the switching element  2 . The third layer  63  is formed by compression molding. The subsequent steps are the same as those for the semiconductor light-emitting device A 3 . 
     In the semiconductor light-emitting device A 4  of the present embodiment, when the switching element  2  is ON, the current due to the electrical charge stored in the capacitor  3  flows through the path of the switching element  2 , the third embedded portions  453 , the second interconnecting portion  402 , the second embedded portions  452 , the semiconductor light-emitting element  1 , the first embedded portions  451 , the first interconnecting portion  401 , and the fifth embedded portions  455 , making the semiconductor light-emitting element  1  emit light. 
     According to the semiconductor light-emitting device A 4  of the present embodiment, the conduction path (the first interconnecting portion  401 , the first embedded portions  451 , the second interconnecting portion  402  and the second embedded portions  452 ) to the first element electrode  13  and the second element electrode  14 , which are disposed on opposite sides of the semiconductor light-emitting element  1 , can be three-dimensionally arranged in a space-efficient manner. Accordingly, the path of the current that flows when the semiconductor light-emitting element  1  emits light can be shortened, and hence, the inductance component of the current path can be reduced. The semiconductor light-emitting device A 2  also has other advantages similar to those of the semiconductor light-emitting device A 3  of the foregoing embodiment. 
     Unlike the semiconductor light-emitting device A 3 , the semiconductor light-emitting device A 4  of the present embodiment does not include the sixth embedded portions  456 , and the capacitor  3  is bonded and electrically connected to the drain electrode  231 . Such a configuration further reduces the dimension of the semiconductor light-emitting device A 4  in the z direction (thickness direction). Accordingly, the path of the current that flows when the semiconductor light-emitting element  1  emits light can be shortened, and hence, the inductance component of the current path can be reduced. 
       FIGS.  37  to  42    show a semiconductor light-emitting device according to a fifth embodiment of the present disclosure. The semiconductor light-emitting device A 5  of the present embodiment differs greatly from the foregoing embodiments in configuration and arrangement of the switching element  2 . Accordingly, the structure of the conductor  4  (the conduction path to the semiconductor light-emitting element  1  and the switching element  2 ) and the structure of the sealing resin  6  also differ from the foregoing embodiments. 
       FIG.  37    is a schematic plan view of the semiconductor light-emitting device A 5 .  FIG.  38    is a front view of the semiconductor light-emitting device A 5 .  FIG.  39    is a bottom view of the semiconductor light-emitting device A 5 , in which the switching element is omitted.  FIG.  40    is a sectional view taken along line XL-XL in  FIG.  37   .  FIG.  41    is a sectional view taken along line XLI-XLI in  FIG.  37   .  FIG.  42    is a sectional view taken along line XLII-XLII in  FIG.  37   . For convenience of description, in  FIGS.  37  to  39   , the sealing resin  6  and the light-transmittable resin  7  are illustrated as transparent, and the outlines of the sealing resin  6  and the light-transmittable resin  7  are shown by imaginary lines, as appropriate. 
     In the semiconductor light-emitting device A 5  of the present embodiment, the semiconductor light-emitting element  1  is disposed at or near the first end (the left end in  FIGS.  37  to  40   ) in the x direction and approximately in the center in the y direction. Also, the semiconductor light-emitting element  1  is offset in the second sense of the z direction (the thickness direction) in the sealing resin  6 . 
     In the present embodiment, the capacitor  3  is in the form of a rectangular plate as viewed in the z direction. The capacitor  3  has an electrode  31  and an electrode  32 . In the present embodiment, the electrode  31  and the electrode  32  are disposed on opposite sides of the capacitor  3  in the z direction (the thickness direction). The electrode  31  is disposed on the surface of the capacitor  3  which faces in the first sense of the z direction, and the electrode  32  is disposed on the surface of the capacitor  3  which faces in the second sense of the z direction. In the present embodiment, the capacitor  3  is a thin silicon capacitor. 
     In the semiconductor light-emitting device A 5 , the capacitor  3  is disposed at or near a second end (the right end in  FIGS.  37  to  40   ) in the x direction and approximately in the center in the y direction. The capacitor  3  is at least partially covered with the sealing resin  6  and disposed between the first resin surface  601  and the second resin surface  602  of the sealing resin  6  in the z direction. In the present embodiment, the semiconductor light-emitting element  3  is offset in the second sense of the z direction (the thickness direction) in the sealing resin  6 . The capacitor  3  is disposed apart from the semiconductor light-emitting element  1  as viewed in the z direction. 
     In the present embodiment, the switching element  2  may be a GaN-FET, for example. The switching element  2  is disposed on the first side of the first resin surface  601  of the sealing resin  6  in the z direction. That is, the switching element  2  is entirely exposed from the sealing resin  6 . 
     In the semiconductor light-emitting device A 5 , the switching element  2  is disposed approximately in the center in the x direction and extends almost entirely along the y direction. The switching element  2  is disposed between the position of the semiconductor light-emitting element  1  and the position of the capacitor  3 , as viewed in the z direction. In the present embodiment, the switching element  2  overlaps with a portion of the semiconductor light-emitting element  1  and a portion of the capacitor  3 , as viewed in the z direction. 
     In the present embodiment, the drain electrodes  231 , the gate electrode  232 , and the source electrodes  233  of the switching element  2  are disposed on the second switching element surface  22 . In the illustrated example, two drain electrodes  231 , one gate electrode  232 , and two source electrodes  233  are provided on the second switching element surface  22 . The two drain electrodes  231  are elongated in the x direction and spaced apart from each other in the y direction. The gate electrode  232  is disposed in the corner of second switching element surface  22  on the first side in the x direction and on the first side in the y direction. The two source electrodes  233  are disposed alternately with the two drain electrodes  231  in the y direction. One of the source electrodes  233  is disposed between the two drain electrodes  231  in the y direction and elongated in the x direction. The other source electrode  233  is disposed in the corner of the second switching element surface  22  on the second side in the x direction and on the first side in the y direction. 
     The sealing resin  6  covers the semiconductor light-emitting element  1  and at least a portion of the capacitor  3 . The sealing resin  6  is made of a material including a thermosetting synthetic resin and an additive containing a metal element, which forms a part of the conductor  4 . Examples of the synthetic resin include epoxy resin and polyimide resin. 
     In the present embodiment, the sealing resin  6  includes a first layer  61 , a second layer  62 , and a third layer  63 . The second layer  62  is disposed on the second side of the first layer  61  in the z direction. The third layer  63  is disposed on the first side of the first layer  61  in the z direction. The third layer  63  has a third surface  631  and a fourth surface  632 . The third surface  631  faces in the first sense of the z direction, and the fourth surface  632  faces in the second sense of the z direction. In the present embodiment, the third layer  63  is located on the first side of the first layer  61  and the second layer  62  in the z direction. Thus, the third surface  631  of the third layer  63  corresponds to the first resin surface  601 . The second layer  62  is located on the second side of the first layer  61  and the third layer  63  in the z direction. Thus, the second surface  621  of the second layer  62  corresponds to the second resin surface  602 . 
     In the present embodiment, the sealing resin  6  has a plurality of first cavities  651 , a plurality of second cavities  652 , a plurality of seventh cavities  657 , a plurality of eighth cavities  658 , a plurality of cavities  679 , a plurality of cavities  680 , and a plurality of cavities  681 . 
     The first cavities  651  are disposed at a position overlapping with the semiconductor light-emitting element  1  as viewed in the z direction. The first cavities  651  extend from the third surface  631  to the first element electrode  13  of the semiconductor light-emitting element  1  in the z direction, penetrating the third layer  63  in the z direction in the present embodiment. 
     The second cavities  652  are disposed at a position overlapping with the semiconductor light-emitting element  1  as viewed in the z direction. The second cavities  652  extend from the second surface  621  of the second layer  62  to the second element electrode  14  of the semiconductor light-emitting element  1  in the z direction, penetrating the second layer  62  in the z direction in the present embodiment. 
     The seventh cavities  657  are disposed at a position overlapping with the capacitor  3  as viewed in the z direction. The seventh cavities  657  extend from the second surface  621  of the second layer  62  to the electrode  32  of the capacitor  3  in the z direction, penetrating the second layer  62  in the z direction in the present embodiment. 
     The eighth cavities  658  are disposed at a position overlapping with the capacitor  3  as viewed in the z direction. The eighth cavities  658  extend from the third surface  631  of the third layer  63  to the electrode  31  of the capacitor  3  in the z direction, penetrating the third layer  63  in the z direction in the present embodiment. 
     The cavities  679 , the cavities  680 , and the cavities  681  penetrate the first layer  61 , the second layer  62  and the third layer  63  in the z direction. 
     In the present embodiment, the conductor  4  includes a first interconnecting portion  401 , a second interconnecting portion  402 , a fourth interconnecting portion  404 , an interconnecting portion  420 , an interconnecting portion  421 , an interconnecting portion  422 , an interconnecting portion  423 , first embedded portions  451 , second embedded portions  452 , seventh embedded portions  457 , eighth embedded portions  458 , embedded portions  479 , embedded portions  480 , and embedded portions  481 . 
     The first interconnecting portion  401  is offset from the first element surface  11  of the semiconductor light-emitting element  1  in the first sense of the z direction. The first interconnecting portion  401  is disposed along the third surface  631  of the third layer  63  (the first resin surface  601 ). In the semiconductor light-emitting device A 5 , the first interconnecting portion  401  is offset in the first sense of the x direction (leftward in  FIG.  37   ) and disposed in a region excluding the edge on the first side in the y direction (the lower side in  FIG.  37   ). The first interconnecting portion  401  overlaps with the almost entire semiconductor light-emitting element  1 , as viewed in the z direction. 
     The first interconnecting portion  401  has a comb-like part extending in the second sense of the x direction (rightward in  FIG.  37   ). The comb-like part overlaps with two drain electrodes  231  of the switching element  2 , as viewed in the z direction. As shown in  FIGS.  40  and  41   , a conductive bonding material  29  may be applied to the comb-like part of the first interconnecting portion  401 , and the conductive bonding material  29  bonds to the drain electrodes  231 . In this way, the first interconnecting portion  401  is electrically connected to the drain electrodes  231  via the conductive bonding material  29 . The conductive bonding material  29  may be solder, for example. 
     The fourth interconnecting portion  404  is disposed along the third surface  631  of the third layer  63  (the first resin surface  601 ). In the semiconductor light-emitting device A 5 , the fourth interconnecting portion  404  is offset in the second sense of the x direction (rightward in  FIG.  37   ) and extends almost entirely along the y direction. The fourth interconnecting portion  404  overlaps with the almost entire capacitor  3 , as viewed in the z direction. 
     The fourth interconnecting portion  404  has a comb-like part extending in the first sense of the x direction (leftward in  FIG.  37   ). This comb-like part is arranged in a staggered manner with the comb-like part of the first interconnecting portion  401  in the y direction. The comb-like part of the fourth interconnecting portion  404  overlaps with the two source electrodes  233  of the switching element  2 , as viewed in the z direction. As shown in  FIGS.  40  and  42   , a conductive bonding material  29  may be applied to the comb-like part of the fourth interconnecting portion  404 , and the conductive bonding material  29  bonds to the source electrodes  233 . In this way, the fourth interconnecting portion  404  is electrically connected to the source electrodes  233  with the conductive bonding material  29 . 
     The interconnecting portion  420  is disposed along the third surface  631  of the third layer  63  (the first resin surface  601 ). In the semiconductor light-emitting device A 5 , the interconnecting portion  420  is disposed in a region offset in the first sense of the x direction (leftward in  FIG.  37   ) and also offset in the first sense of the y direction (downward in  FIG.  37   ), as viewed in the z direction. The interconnecting portion  420  overlaps with the gate electrode  232  of the switching element  2 , as viewed in the z direction. As shown in  FIG.  41   , a conductive bonding material  29  may be applied to the interconnecting portion  420 , and the conductive bonding material  29  bonds to the gate electrodes  232 . In this way, the interconnecting portion  420  is electrically connected to the gate electrode  232  with the conductive bonding material  29 . 
     The second interconnecting portion  402  is offset from the second element surface  12  of the semiconductor light-emitting element  1  in the second sense of the z direction. The second interconnecting portion  402  is disposed along the second surface  621  of the second layer  62  (the second resin surface  602 ). In the semiconductor light-emitting device A 5 , the second interconnecting portion  402  extends almost over the entire region along the x direction and is disposed approximately in the center in the y direction, as viewed in the z direction. The second interconnecting portion  402  overlaps with the entire semiconductor light-emitting element  1  and the entire capacitor  3 , as viewed in the z direction. 
     The interconnecting portion  421  is disposed along the second surface  621  of the second layer  62  (the second resin surface  602 ). In the semiconductor light-emitting device A 5 , the interconnecting portion  421  is disposed in a region offset in the first sense of the x direction (leftward in  FIG.  39   ) and also offset in the first sense of the y direction (upward in  FIG.  39   ), as viewed in the z direction. The interconnecting portion  421  overlaps with the interconnecting portion  420  as viewed in the z direction. 
     The interconnecting portion  422  is disposed along the second surface  621  of the second layer  62  (the second resin surface  602 ). In the semiconductor light-emitting device A 5 , the interconnecting portion  422  is disposed in a region offset in the first sense of the x direction (leftward in  FIG.  39   ) and also offset in the second sense of the y direction (downward in  FIG.  39   ), as viewed in the z direction. The interconnecting portion  422  overlaps with the first interconnecting portion  401  as viewed in the z direction. 
     The interconnecting portion  423  is disposed along the second surface  621  of the second layer  62  (the second resin surface  602 ). In the semiconductor light-emitting device A 5 , the interconnecting portion  423  is disposed in a region offset in the second sense of the x direction (rightward in  FIG.  39   ) and also offset in the second sense of the y direction (downward in  FIG.  39   ), as viewed in the z direction. The interconnecting portion  423  overlaps with the fourth interconnecting portion  404  as viewed in the z direction. 
     The second interconnecting portion  402 , the interconnecting portion  421 , the interconnecting portion  422  and the interconnecting portion  423 , which are disposed along the second surface  621  of the second layer  62  (the second resin surface  602 ), are spaced apart from each other. The second interconnecting portion  402  and the interconnecting portions  421 ,  422  and  423  are used as external connection terminals in mounting the semiconductor light-emitting device A 5  to a circuit board (not shown), for example. 
     The first embedded portions  451  are received in the first cavities  651  and connected to the first element electrode  13  of the semiconductor light-emitting element  1  and the first interconnecting portion  401 . In the present embodiment, a plurality of first embedded portions  451  are provided. In the illustrated example, the first embedded portions  451  are arranged along the x direction. 
     The second embedded portions  452  are received in the second cavities  652  and connected to the second element electrode  14  of the semiconductor light-emitting element  1  and the second interconnecting portion  402 . In the present embodiment, a plurality of second embedded portions  452  are provided. In the illustrated example, the second embedded portions  452  are arranged along the x direction. 
     The seventh embedded portions  457  are received in the seventh cavities  657  and connected to the electrode  32  of the capacitor  3  and the second interconnecting portion  402 . In the present embodiment, a plurality of seventh embedded portions  457  are provided. In the illustrated example, the seventh embedded portions  457  are arranged in a matrix along the x direction and the y direction. 
     The eighth embedded portions  458  are received in the eighth cavities  658  and connected to the electrode  31  of the capacitor  3  and the fourth interconnecting portion  404 . In the present embodiment, a plurality of eighth embedded portions  458  are provided. In the illustrated example, the eighth embedded portions  458  are arranged in a matrix along the x direction and the y direction. 
     The embedded portions  479  are received in the cavities  679  and connected to the first interconnecting portion  401  and the interconnecting portion  422 . In the present embodiment, a plurality of embedded portions  479  are provided. In the illustrated example, the embedded portions  479  are arranged along the x direction. The embedded portions  480  are received in the cavities  680  and connected to the interconnecting portion  420  and the interconnecting portion  421 . In the present embodiment, a plurality of embedded portions  480  are provided. In the illustrated example, the embedded portions  480  are arranged along the x direction. 
     The embedded portions  481  are received in the cavities  681  and connected to the fourth interconnecting portion  404  and the interconnecting portion  423 . In the present embodiment, a plurality of embedded portions  481  are provided. In the illustrated example, the embedded portions  481  are arranged along the x direction. 
     Although not shown in detail, each of the interconnecting portions and the embedded portions has a base layer and a plating layer. The base layer is composed of a metal element contained in the additive included in the sealing resin  6  (the first layer  61 , the second layer  62  and the third layer  63 ). 
     Although not shown in detail, to manufacture the semiconductor light-emitting device A 5 , a first layer  61  and a second layer  62  are formed so as to cover the semiconductor light-emitting element  1  and the capacitor  3 . The first layer  61  and the second layer  62  are formed by compression molding. Next, a plurality of second cavities  652  and a plurality of seventh cavities  657  are formed in the second layer  62  with a laser. In addition, a plurality of grooves are formed in the second surface  621  of the second layer  62  (the second resin surface  602 ) with a laser. By this process, base layers are deposited in these cavities and grooves. Next, plating layers covering the base layers are formed to provide the second embedded portions  452 , the seventh embedded portions  457 , the second interconnecting portion  402 , the interconnecting portion  421 , the interconnecting portion  422  and the interconnecting portion  423 . Thereafter, the first layer  61  and the second layer  62 , each in the form of a plate, are turned upside down, and the third layer  63  is formed. The third layer  63  is laminated on the first layer  61  and covers the first element electrode  13  of the semiconductor light-emitting element  1  and the electrode  31  of the capacitor  3 . The third layer  63  is formed by compression molding. Next, a plurality of first cavities  651  and a plurality of eighth cavities  658  are formed in the third layer  63  with a laser. Also, a plurality of cavities  679 , a plurality of cavities  680 , and a plurality of cavities  681  are formed in the third layer  63 , the first layer  61  and the second layer  62  with a laser, and a plurality of grooves are formed in the third surface  631  of the third layer  63  (the first resin surface  601 ) with a laser. By this process, base layers are deposited in these cavities and grooves. Next, plating layers covering the base layers are formed to provide the first embedded portions  451 , the eighth embedded portions  458 , the embedded portions  479 , the embedded portions  480 , the embedded portions  481 , the first interconnecting portion  401 , the fourth interconnecting portion  404  and the interconnecting portion  420 . Thereafter, the switching element  2  is disposed on the first interconnecting portion  401 , the fourth interconnecting portion  404  and the interconnecting portion  420 . In this process, the drain electrode  231  of the switching element  2  is bonded and electrically connected to the first interconnecting portion  401  with a conductive bonding material  29 , the gate electrode  232  to the interconnecting portion  420  with a conductive bonding material  29 , and the source electrode  233  to the fourth interconnecting portion  404  with a conductive bonding material  29 . Thereafter, the third layer  63 , the first layer  61 , and the second layer  62  are cut along predetermined cutting lines into a plurality of individual pieces. Through the above process, the semiconductor light-emitting device A 5  is manufactured. 
     Although not shown in the figures, the semiconductor light-emitting device A 5  can be used as connected to e.g. an external DC power supply. In that case, when the switching element  2  is OFF, current flows from the DC power supply to the capacitor  3  so that the capacitor  3  is charged. When the switching element  2  is ON, the current due to the electrical charge stored in the capacitor  3  flows through the path of the seventh embedded portions  457 , the second interconnecting portion  402 , the second embedded portions  452 , the semiconductor light-emitting element  1 , the first embedded portions  451 , the first interconnecting portion  401 , the switching element  2 , the fourth interconnecting portion  404  and the eighth embedded portions  458 , making the semiconductor light-emitting element  1  emit light. 
     In the semiconductor light-emitting device A 5  of the present embodiment, the conductor  4  forming the conduction path to the semiconductor light-emitting element  1  includes the first interconnecting portion  401 , the first embedded portions  451 , the second interconnecting portion  402  and the second embedded portions  452 . The first interconnecting portion  401  is electrically connected to the first element electrode  13  of the semiconductor light-emitting element  1  via the first embedded portions  451 . The second interconnecting portion  402  is electrically connected to the second element electrode  14  of the semiconductor light-emitting element  1  via the second embedded portions  452 . At least a portion (the second element surface  12 ) of the semiconductor light-emitting element  1  is covered with the sealing resin  6 , and the conductor  4  (the first interconnecting portion  401 , the second interconnecting portion  402 , and the second embedded portions  452 ) is in contact with the sealing resin  6 . With such a configuration, the conduction path (the first interconnecting portion  401 , the first embedded portions  451 , the second interconnecting portion  402  and the second embedded portions  452 ) to the first element electrode  13  and the second element electrode  14 , which are disposed on opposite sides of the semiconductor light-emitting element  1 , can be three-dimensionally arranged in a space-efficient manner. Accordingly, the path of current that flows when the semiconductor light-emitting element  1  emits light can be shortened, and hence, the inductance component of the current path can be reduced. 
     The capacitor  3  is at least partially covered with the sealing resin  6 . The switching element  2  is disposed on the first side of the first resin surface  601  in the z direction and entirely exposed from the sealing resin  6 . The conductor  4  includes the fourth interconnecting portion  404 , the seventh embedded portions  457  and the eighth embedded portions  458 . The first interconnecting portion  401  and the fourth interconnecting portion  404  are disposed along the third surface  631  (the first resin surface  601 ) of the third layer  63  (the sealing resin  6 ). The seventh embedded portions  457  are connected to the electrode  31  of the capacitor  3  and the second interconnecting portion  402 , and the eighth embedded portions  458  are connected to the electrode  32  of the capacitor  3  and the fourth interconnecting portion  404 . With such a configuration, the length of the path from the first interconnecting portion  401  to the second interconnecting portion  402  through the switching element  2 , the fourth interconnecting portion  404 , the eighth embedded portions  458 , the capacitor  3  and the seventh embedded portions  457  can be made relatively short. This is suitable for reducing the inductance component of the path of the current flowing through the semiconductor light-emitting device A 5 . 
     In the present embodiment, the semiconductor light-emitting element  1  and the capacitor  3  are disposed apart from each other as viewed in the z direction. The switching element  2  is disposed between the position of the semiconductor light-emitting element  1  and the position of the capacitor  3 , as viewed in the z direction. As the capacitor  3 , a thin silicon capacitor is used. Such a configuration makes it possible to reduce the dimension of the semiconductor light-emitting device A 5  in the z direction (thickness direction) while also reducing the size of the semiconductor light-emitting device A 3  as viewed in the z direction. This is suitable for shortening the path of the current that flows when the semiconductor light-emitting element  1  emits light, and hence is suitable for reducing the inductance component of the current path. 
     Moreover, the conductor  4 , which forms the conduction path to the semiconductor light-emitting element  1  and the switching element  2 , is constituted by a plurality of interconnecting portions and a plurality of embedded portions, and electrical connection using a wire is not necessary. This reduces the inductance component of the path of current flowing through the semiconductor light-emitting device A 5  and improves the yield (the percentage of non-defective products) of the semiconductor light emitting device A 5 . 
       FIGS.  43  to  50    show a semiconductor light-emitting device according to a sixth embodiment of the present disclosure. The semiconductor light-emitting device A 6  of the present embodiment differs from the semiconductor light-emitting device A 5  mainly in structure of the conductor  4  (the conduction path to the semiconductor light-emitting element  1  and the switching element  2 ) and structure of the sealing resin  6 . 
       FIG.  43    is a schematic plan view of the semiconductor light-emitting device A 6 .  FIG.  44    is a plan view of the semiconductor light-emitting device A 6 , in which the switching element is omitted.  FIG.  45    is a front view of the semiconductor light-emitting device A 6 .  FIG.  46    is a bottom view of the semiconductor light-emitting device A 6 , in which the switching element is omitted.  FIG.  47    is a sectional view taken along line XLVII-XLVII in  FIG.  43   .  FIG.  48    is a sectional view taken along line XLVIII-XLVIII in  FIG.  43   .  FIG.  49    is a sectional view taken along line XLIX-XLIX in  FIG.  43   .  FIG.  50    is a sectional view taken along line L-L in  FIG.  43   . For convenience of description, in  FIGS.  43  to  46   , the sealing resin  6  and the light-transmittable resin  7  are illustrated as transparent, and the outlines of the sealing resin  6  and the light-transmittable resin  7  are shown by imaginary lines, as appropriate. 
     In semiconductor light-emitting device A 6  of the present embodiment, the position of the semiconductor light-emitting element  1 , the position of the capacitor  3 , and the position of the switching element  2  are the same as those in the semiconductor light-emitting device A 5 . The capacitor  3  is a thin silicon capacitor, as with the semiconductor light-emitting device A 5 . The structure of the switching element  2  is the same as that of the semiconductor light-emitting device A 5 . Also, the arrangement of each of the drain electrode  231 , the gate electrode  232  and the source  233  is the same as that in the semiconductor light-emitting device A 5 . 
     The sealing resin  6  covers the semiconductor light-emitting element  1  and at least a portion of the capacitor  3 . The sealing resin  6  is made of a material including a thermosetting synthetic resin and an additive containing a metal element, which forms a part of the conductor  4 . Examples of the synthetic resin include epoxy resin and polyimide resin. 
     In the present embodiment, the sealing resin  6  includes a fifth layer  65  in addition to the first layer  61 , the second layer  62 , and the third layer  63 . The structures of the first layer  61 , the second layer  62  and the third layer  63  are the same as those in the semiconductor light-emitting device A 5 . The fifth layer  65  is disposed on the first side of the third layer  63  in the z direction. The fifth layer  65  is located on the first side of the first layer  61 , the second layer  62  and the third layer  63  in the z direction. The second layer  62  is disposed on the second side of the first layer  61  in the z direction. Thus, the surface of the fifth layer  65  which faces in the first sense of the z direction corresponds to the first resin surface  601 . 
     In the present embodiment, the sealing resin  6  has a plurality of first cavities  651 , a plurality of second cavities  652 , a plurality of ninth cavities  659 , a plurality of tenth cavities  660 , a plurality of eleventh cavities  661 , a plurality of twelfth cavities  662 , a cavity  682 , and a plurality of cavities  683 . 
     The first cavities  651  are disposed at a position overlapping with the semiconductor light-emitting element  1  as viewed in the z direction. The first cavities  651  extend from the third surface  631  to the first element electrode  13  of the semiconductor light-emitting element  1  in the z direction, penetrating the third layer  63  in the z direction in the present embodiment. 
     The second cavities  652  are disposed at a position overlapping with the semiconductor light-emitting element  1  as viewed in the z direction. The second cavities  652  extend from the second surface  621  of the second layer  62  to the second element electrode  14  of the semiconductor light-emitting element  1  in the z direction, penetrating the second layer  62  in the z direction in the present embodiment. 
     The ninth cavities  659  are disposed at a position overlapping with the capacitor  3  as viewed in the z direction. The ninth cavities  659  extend from the second surface  621  of the second layer  62  to the electrode  32  of the capacitor  3  in the z direction, penetrating the second layer  62  in the z direction in the present embodiment. 
     The tenth cavities  660  are disposed at a position overlapping with the capacitor  3  as viewed in the z direction. The tenth cavities  660  extend from the third surface  631  of the third layer  63  to the electrode  31  of the capacitor  3  in the z direction, penetrating the third layer  63  in the z direction in the present embodiment. 
     The eleventh cavities  661 , the twelfth cavities  662  and the cavity  682  penetrate the first layer  61 , the second layer  62 , the third layer  63  and the fifth layer  65  in the z direction. 
     The cavities  683  penetrate the first layer  61 , the second layer  62  and the third layer  63  in the z direction. 
     In the present embodiment, the conductor  4  includes a first interconnecting portion  401 , a second interconnecting portion  402 , a fifth interconnecting portion  405 , sixth interconnecting portions  406 , seventh interconnecting portions  407 , an interconnecting portion  424 , an interconnecting portion  425 , an interconnecting portion  426 , first embedded portions  451 , second embedded portions  452 , ninth embedded portions  459 , tenth embedded portions  460 , eleventh embedded portions  461 , twelfth embedded portions  462 , an embedded portion  482 , and embedded portions  483 . 
     The first interconnecting portion  401  is offset from the first element surface  11  of the semiconductor light-emitting element  1  in the first sense of the z direction. The first interconnecting portion  401  is disposed along the third surface  631  of the third layer  63 . In the semiconductor light-emitting device A 6 , the first interconnecting portion  401  extends almost over the entire region along the x direction and is disposed in a region excluding the edge on the first side (the lower side in  FIG.  43   ) and a portion of the edge on the second side (the upper side in  FIG.  23   ) in the y direction. The first interconnecting portion  401  overlaps with the almost entire semiconductor light-emitting element  1  and the almost entire capacitor  3 , as viewed in the z direction. 
     The first interconnecting portion  401  is formed with two openings  401   a  penetrating in the z direction. The two openings  401   a  are formed approximately in the center of the first interconnecting portion  401  in the x direction. The openings  401   a  each extend in the x direction with a predetermined width and are spaced apart from each other in the y-direction. 
     The seventh interconnecting portions  407  are disposed along the first resin surface  601  of the fifth layer  65  (see  FIGS.  48  and  50   ). In the present embodiment, two seventh interconnecting portions  407  are provided (see  FIG.  44   ). The seventh interconnecting portions  407  are disposed approximately in the center of the semiconductor light-emitting device A 6  in the x direction. The two seventh interconnecting portions  407  are elongated in the x direction and spaced apart from each other in the y direction. As shown in  FIGS.  48  and  50   , a conductive bonding material  29  may be applied to the seventh interconnecting portions  407 , and the conductive bonding material  29  bonds to the drain electrode  231 . In this way, the seventh interconnecting portions  407  are electrically connected to the drain electrodes  231  via the conductive bonding material  29 . The conductive bonding material  29  may be solder, for example. 
     The sixth interconnecting portions  406  are disposed along the first resin surface  601  of the fifth layer  65  (see  FIGS.  48  and  49   ). In the present embodiment, two sixth interconnecting portions  406  are provided (see  FIG.  44   ). In the semiconductor light-emitting device A 6 , the sixth interconnecting portions  406  are disposed approximately in the center in the x direction. The two sixth interconnecting portions  406  are elongated in the x direction and spaced apart from each other in the y direction. One of the sixth interconnecting portions  406  is disposed between two seventh interconnecting portions  407  in the y direction and extends in the x direction. The other sixth interconnecting portion  406  is disposed at a position offset in the second sense of the x direction (rightward in  FIG.  44   ) and also offset in the first sense of the y direction (downward in  FIG.  44   ) in the semiconductor light-emitting device A 6 . As shown in  FIGS.  48  and  49   , a conductive bonding material  29  may be applied to the sixth interconnecting portions  406 , and the conductive bonding material  29  bonds to the source electrodes  233 . In this way, the sixth interconnecting portions  406  is electrically connected to the source electrodes  233  via the conductive bonding material  29 . 
     The interconnecting portion  424  is disposed along the first resin surface  601  of the fifth layer  65  (see  FIG.  49   ). In the semiconductor light-emitting device A 6 , the interconnecting portion  424  is disposed at a position near the center in the x direction and offset in the first sense of the y direction (see  FIG.  44   ). As shown in  FIG.  49   , a conductive bonding material  29  may be applied to the interconnecting portion  424 , and the conductive bonding material  29  bonds to the gate electrodes  232 . In this way, the interconnecting portion  424  is electrically connected to the gate electrode  232  via the conductive bonding material  29 . 
     The second interconnecting portion  402  is offset from the second element surface  12  of the semiconductor light-emitting element  1  in the second sense of the z direction. The second interconnecting portion  402  is disposed along the second surface  621  of the second layer  62  (the second resin surface  602 ). In the semiconductor light-emitting device A 6 , the second interconnecting portion  402  is offset in the first sense of the x direction (leftward in  FIG.  46   ) and disposed in a region excluding the edge on the first side in the y direction (the upper side in  FIG.  46   ). The second interconnecting portion  402  overlaps with the almost entire semiconductor light-emitting element  1 , as viewed in the z direction. The second interconnecting portion  402  has a comb-like part extending in the second sense of the x direction (rightward in  FIG.  46   ). The comb-like part overlaps with the two seventh interconnecting portions  407  as viewed in the z direction. 
     The fifth interconnecting portion  405  is disposed along the second surface  621  of the second layer  62  (the second resin surface  602 ). In the semiconductor light-emitting device A 6 , the fifth interconnecting portion  405  is offset in the second sense of the x direction (rightward in  FIG.  46   ) and disposed in a region excluding the edge on the second side in the y direction (the lower side in  FIG.  46   ). The fifth interconnecting portion  405  overlaps with the almost entire capacitor  3 , as viewed in the z direction. The fifth interconnecting portion  405  has a comb-like part extending in the first sense of the x direction (leftward in  FIG.  46   ). This comb-like part is arranged in a staggered manner with the comb-like part of the second interconnecting portion  402  in the y direction. The comb-like part of the fifth interconnecting portion  405  overlaps with the two sixth interconnecting portions  406  as viewed in the z direction. 
     The interconnecting portion  425  is disposed along the second surface  621  of the second layer  62  (the second resin surface  602 ). In the semiconductor light-emitting device A 6 , the interconnecting portion  425  is disposed in a region offset in the first sense of the x direction (leftward in  FIG.  46   ) and also offset in the first sense of the y direction (upward in  FIG.  46   ), as viewed in the z direction. The interconnecting portion  425  overlaps with the interconnecting portion  424  as viewed in the z direction. 
     The interconnecting portion  426  is disposed along the second surface  621  of the second layer  62  (the second resin surface  602 ). In the semiconductor light-emitting device A 6 , the interconnecting portion  426  is disposed in a region offset in the second sense of the x direction (rightward in  FIG.  46   ) and also offset in the second sense of the y direction (downward in  FIG.  46   ), as viewed in the z direction. The interconnecting portion  426  overlaps with the interconnecting portion  401  as viewed in the z direction. 
     The second interconnecting portion  402 , the fifth interconnecting portion  405 , the interconnecting portion  425  and the interconnecting portion  426 , which are disposed along the second surface  621  of the second layer  62  (the second resin surface  602 ), are spaced apart from each other. The second interconnecting portion  402 , the fifth interconnecting portion  405 , the interconnecting portion  425 , and the interconnecting portion  426  are used as external connection terminals in mounting the semiconductor light-emitting device A 6  to a circuit board (not shown). 
     The first embedded portions  451  are received in the first cavities  651  and connected to the first element electrode  13  of the semiconductor light-emitting element  1  and the first interconnecting portion  401 . In the present embodiment, a plurality of first embedded portions  451  are provided. In the illustrated example, the first embedded portions  451  are arranged along the x direction. 
     The second embedded portions  452  are received in the second cavities  652  and connected to the second element electrode  14  of the semiconductor light-emitting element  1  and the second interconnecting portion  402 . In the present embodiment, a plurality of second embedded portions  452  are provided. In the illustrated example, the second embedded portions  452  are arranged along the x direction. 
     The ninth embedded portions  459  are received in the ninth cavities  695  and connected to the electrode  32  of the capacitor  3  and the fifth interconnecting portion  405 . In the present embodiment, a plurality of ninth embedded portions  459  are provided. In the illustrated example, the ninth embedded portions  459  are arranged in a matrix along the x direction and the y direction. 
     The tenth embedded portions  460  are received in the tenth cavities  660  and connected to the electrode  31  of the capacitor  3  and the first interconnecting portion  401 . In the present embodiment, a plurality of tenth embedded portions  460  are provided. In the illustrated example, the tenth embedded portions  460  are arranged in a matrix along the x direction and the y direction. 
     The eleventh embedded portions  461  are received in the eleventh cavities  661  and connected to the fifth interconnecting portion  405  and the sixth interconnecting portion  406 . In the present embodiment, a plurality of eleventh embedded portions  461  are provided. In the illustrated example, the plurality of eleventh embedded portions  461  include those arranged along the x direction. As will be understood from  FIGS.  44  and  48   , the eleventh embedded portions  461  extends through an opening  401   a  of the first interconnecting portion  401 . As will be understood from  FIGS.  43 ,  44 ,  48  and  49   , the switching element  2  overlaps with the entire eleventh embedded portions  461  as viewed in the z direction. 
     The twelfth embedded portions  462  are received in the twelfth cavities  662  and connected to the second interconnecting portion  402  and the seventh interconnecting portion  407 . In the present embodiment, a plurality of twelfth embedded portions  462  are provided. In the illustrated example, the twelfth embedded portions  462  are arranged along the x direction. As will be understood from  FIGS.  44  and  48   , the plurality of twelfth embedded portions  462  include those extending through an opening  401   a  of the first interconnecting portion  401 . As will be understood from  FIGS.  43 ,  44 ,  48  and  50   , the switching element  2  overlaps with the entire twelfth embedded portions  462  as viewed in the z direction. 
     The embedded portions  482  are received in the cavities  682  and connected to the interconnecting portion  424  and the interconnecting portion  425 . The embedded portions  483  are received in the cavities  683  and connected to the first interconnecting portion  401  and the interconnecting portion  426 . In the present embodiment, a plurality of embedded portions  483  are provided. In the illustrated example, the embedded portions  483  are arranged along the x direction. 
     Although not shown in detail, each of the interconnecting portions and the embedded portions has a base layer and a plating layer. The base layer is composed of a metal element contained in the additive included in the sealing resin  6  (the first layer  61 , the second layer  62 , the third layer  63  and the fifth layer  65 ). 
     Although not shown in detail, to manufacture the semiconductor light-emitting device A 6 , a first layer  61  and a second layer  62  are formed so as to cover the semiconductor light-emitting element  1  and the capacitor  3 . The first layer  61  and the second layer  62  are formed by compression molding. Next, a plurality of second cavities  652  and a plurality of ninth cavities  659  are formed in the second layer  62  with a laser. In addition, a plurality of grooves are formed in the second surface  621  of the second layer  62  (the second resin surface  602 ) with a laser. By this process, base layers are deposited in these cavities and grooves. Next, plating layers covering the base layers are formed to provide the second embedded portions  452 , the ninth embedded portions  459 , the second interconnecting portion  402 , the fifth interconnecting portion  405 , the interconnecting portion  425 , and the interconnecting portion  426 . Thereafter, the first layer  61  and the second layer  62 , each in the form of a plate, are turned upside down, and the third layer  63  is formed. The third layer  63  is laminated on the first layer  61  and covers the first element electrode  13  of the semiconductor light-emitting element  1  and the electrode  31  of the capacitor  3 . The third layer  63  is formed by compression molding. Next, a plurality of first cavities  651  and a plurality of tenth cavities  660  are formed in the third layer  63  with a laser. Also, a plurality of cavities  683  are formed in the third layer  63 , the first layer  61  and the second layer  62  with a laser, and a plurality of grooves are formed in the third surface  631  of the third layer  63  with a laser. By this process, base layers are deposited in these cavities and grooves. Next, plating layers covering the base layers are formed to provide the first embedded portions  451 , the tenth embedded portions  460 , and the first interconnecting portion  401  having openings  401   a . Next, a fifth layer  65  is formed. The fifth layer  65  is laminated on the third layer  63 . The fifth layer  65  is formed by compression molding. Next, a plurality of eleventh cavities  661 , a plurality of twelfth cavities  662  and a cavity  682  are formed in the fifth layer  65 , the third layer  63 , the first layer  61  and the second layer  62  with a laser, and a plurality of grooves are formed in the first resin surface  601  of the fifth layer  65  with a laser. By this process, base layers are deposited in these cavities and grooves. Next, plating layers covering the base layers are formed to provide the eleventh embedded portions  461 , the twelfth embedded portions  462 , the embedded portion  482 , the sixth interconnecting portion  406 , the seventh interconnecting portion  407  and the interconnecting portion  424 . Thereafter, the switching element  2  is disposed on the sixth interconnecting portion  406 , the seventh interconnecting portion  407  and the interconnecting portion  424 . In this process, the drain electrode  231  of the switching element  2  is bonded and electrically connected to the seventh interconnecting portion  407  with a conductive bonding material  29 , the gate electrode  232  to the interconnecting portion  424  with a conductive bonding material  29 , and the source electrode  233  to the sixth interconnecting portion  604  with a conductive bonding material  29 . Thereafter, the fifth layer  65 , the third layer  63 , the first layer  61 , and the second layer  62  are cut along predetermined cutting lines into a plurality of individual pieces. Through the above process, the semiconductor light-emitting device A 6  is manufactured. 
     In the semiconductor light-emitting device A 6  of the present embodiment, when the switching element  2  is ON, the current due to the electrical charge stored in the capacitor  3  flows through the path of the tenth embedded portions  460 , the first interconnecting portion  401 , the first embedded portions  451 , the semiconductor light-emitting element  1 , the second embedded portions  452 , the second interconnecting portion  402 , the twelfth embedded portions  462 , the seventh interconnecting portion  407 , the switching element  2 , the sixth interconnecting portion  406 , the eleventh embedded portions  461 , the fifth interconnecting portion  405  and the ninth embedded portions  459 , making the semiconductor light-emitting element  1  emit light. 
     According to the semiconductor light-emitting device A 6  of the present embodiment, the conduction path (the first interconnecting portion  401 , the first embedded portions  451 , the second interconnecting portion  402  and the second embedded portions  452 ) to the first element electrode  13  and the second element electrode  14 , which are disposed on opposite sides of the semiconductor light-emitting element  1 , can be three-dimensionally arranged in a space-efficient manner. Accordingly, the path of current that flows when the semiconductor light-emitting element  1  emits light can be shortened, and hence, the inductance component of the current path can be reduced. 
     The capacitor  3  is at least partially covered with the sealing resin  6 . The switching element  2  is disposed on the first side of the first resin surface  601  in the z direction and entirely exposed from the sealing resin  6 . In the present embodiment, the semiconductor light-emitting element  1  and the capacitor  3  are disposed apart from each other as viewed in the z direction. The switching element  2  is disposed between the position of the semiconductor light-emitting element  1  and the position of the capacitor  3 , as viewed in the z direction. As the capacitor  3 , a thin silicon capacitor is used. Such a configuration makes it possible to reduce the dimension of the semiconductor light-emitting device A 6  in the z direction (the thickness direction) while also reducing the size of the semiconductor light-emitting device as viewed in the z direction. This is suitable for shortening the path of the current that flows when the semiconductor light-emitting element  1  emits light, and hence is suitable for reducing the inductance component of the current path. 
     In the present embodiment, when the semiconductor light-emitting element  1  emits light, the direction of the current in the eleventh embedded portions  461  and that in the twelfth embedded portions  462  are opposite from each other. These eleventh embedded portions  461  and twelfth embedded portions  462  entirely overlap with the switching element  2 , as viewed in the z direction. As viewed in the z direction, the eleventh embedded portions  461  and the twelfth embedded portions  462  that are adjacent to each other are relatively close to each other. With such a configuration, when the semiconductor light-emitting element  1  emits light, the magnetic field generated due to the current flow in the eleventh embedded portions  461  is cancelled by the magnetic field generated due to the current flow in the twelfth embedded portions  462 . This is suitable for shortening the path of the current that flows when the semiconductor light-emitting element  1  emits light, and hence is suitable for reducing the inductance component of the current path. 
     Moreover, the conductor  4 , which forms the conduction path to the semiconductor light-emitting element  1  and the switching element  2 , is constituted by a plurality of interconnecting portions and a plurality of embedded portions, and electrical connection using a wire is not necessary. This reduces the inductance component of the path of current flowing through the semiconductor light-emitting device A 6  and improves the yield (the percentage of non-defective products) of the semiconductor light emitting device A 6 . 
     The semiconductor light-emitting device according to the present disclosure is not limited to the foregoing embodiments. The specific configuration of each part of the semiconductor light-emitting device according to present disclosure may be varied in design in many ways. 
     The present disclosure includes the configurations defined in the following clauses. 
     Clause 1. 
     A semiconductor light-emitting device comprising: 
     a semiconductor light-emitting element having a first element surface and a second element surface facing away from each other in a thickness direction, a first element electrode disposed on the first element surface, and a second element electrode disposed on the second element surface; 
     a sealing resin having a first resin surface and a second resin surface, the first resin surface facing in a first sense of the thickness direction in which the first element surface faces, the second resin surface facing in a second sense of the thickness direction in which the second element surface faces, the sealing resin covering at least the second element surface of the semiconductor light-emitting element; and 
     a conductor forming a conduction path to the semiconductor light-emitting element, wherein 
     the sealing resin has a second cavity extending to the second element electrode in the thickness direction, 
     the conductor includes a first interconnecting portion, a second embedded portion, and a second interconnecting portion, 
     the first interconnecting portion is electrically connected to the first element electrode, is offset from the first element surface in the first sense of the thickness direction, and extends along a direction perpendicular to the thickness direction, 
     the second embedded portion is received in the second cavity and connected to the second element electrode, and 
     the second interconnecting portion is connected to the second embedded portion, is offset from the second element surface in the second sense of the thickness direction, and extends along the direction perpendicular to the thickness direction. 
     Clause 2. 
     The semiconductor light-emitting device according to clause 1, wherein the semiconductor light-emitting element is a semiconductor laser element, 
     the semiconductor light-emitting device further includes a switching element including a first switching element surface facing in the first sense of the thickness direction, a second switching element surface facing in the second sense of the thickness direction, a gate electrode, a source electrode, and a drain electrode, and 
     the conductor forms a conduction path to the switching element. 
     Clause 3. 
     The semiconductor light-emitting device according to clause 2, wherein the sealing resin covers at least a portion of the switching element, and 
     the switching element is disposed between the first resin surface and the second resin surface in the thickness direction. 
     Clause 4. 
     The semiconductor light-emitting device according to clause 3, wherein the sealing resin includes a first layer and a second layer, the first layer having a first surface facing in the first sense of the thickness direction and overlapping with the semiconductor light-emitting element as viewed in a direction perpendicular to the thickness direction, the second layer being disposed on a second side of the first layer in the thickness direction and having a second surface facing in the second sense of the thickness direction, 
     the switching element is disposed across the first layer and the second layer, and 
     the second interconnecting portion is disposed along the second surface of the second layer. 
     Clause 5. 
     The semiconductor light-emitting device according to clause 4, wherein the drain electrode is disposed on the first switching element surface, 
     the gate electrode and the source electrode are disposed on the second switching element surface, and 
     the semiconductor light-emitting device further includes a capacitor electrically intervening between the drain electrode and the first element electrode. 
     Clause 6. 
     The semiconductor light-emitting device according to clause 5, wherein the second layer covers the second switching element surface and has a third cavity extending to the source electrode in the thickness direction, and 
     the conductor includes a third embedded portion received in the third cavity and connected to the source electrode and the second interconnecting portion. 
     Clause 7. 
     The semiconductor light-emitting device according to clause 6, wherein the capacitor is disposed on a first side of the first resin surface in the thickness direction, 
     the conductor includes a third interconnecting portion electrically connected to the drain electrode and extending in the direction perpendicular to the thickness direction, and 
     the first interconnecting portion and the third interconnecting portion are disposed at a same position in the thickness direction. 
     Clause 8. 
     The semiconductor light-emitting device according to clause 7, wherein the sealing resin includes a third layer disposed on the first side of the first layer in the thickness direction and having a third surface facing in the first sense of the thickness direction and a fourth surface facing in the second sense of the thickness direction, 
     the third layer covers the first element surface and the first switching element surface and has a first cavity extending to the first element electrode in the thickness direction and a fourth cavity extending to the drain electrode in the thickness direction, 
     the first interconnecting portion and the third interconnecting portion are disposed along the third surface of the third layer, 
     the conductor includes a first embedded portion and a fourth embedded portion, 
     the first embedded portion is received in the first cavity and connected to the first element electrode and the first interconnecting portion, and 
     the fourth embedded portion is received in the fourth cavity and connected to the drain electrode and the third interconnecting portion. 
     Clause 9. 
     The semiconductor light-emitting device according to clause 7 or 8, wherein the sealing resin includes a fourth layer disposed on the second side of the second layer in the thickness direction, and 
     the second interconnecting portion is disposed between the second layer and the fourth layer. 
     Clause 10. 
     The semiconductor light-emitting device according to clause 6, wherein the sealing resin covers at least a portion of the capacitor, 
     the sealing resin includes a third layer disposed on the first side of the first layer in the thickness direction and having a third surface facing in the first sense of the thickness direction and a fourth surface facing in the second sense of the thickness direction, and 
     the capacitor is disposed between the third surface and the fourth surface in the thickness direction. 
     Clause 11. 
     The semiconductor light-emitting device according to clause 10, wherein the third layer covers the first element surface and has a first cavity extending to the first element electrode in the thickness direction and a fifth cavity extending to the capacitor in the thickness direction, 
     the first interconnecting portion is disposed along the third surface of the third layer, 
     the conductor includes a first embedded portion and a fifth embedded portion, 
     the first embedded portion is received in the first cavity and connected to the first element electrode and the first interconnecting portion, and 
     the fifth embedded portion is received in the fifth cavity and connected to the capacitor and the first interconnecting portion. 
     Clause 12. 
     The semiconductor light-emitting device according to clause 11, wherein the third layer has a sixth cavity extending to the drain electrode and the capacitor in the thickness direction, and 
     the conductor includes a sixth embedded portion received in the sixth cavity and connected to the drain electrode and the capacitor. 
     Clause 13. 
     The semiconductor light-emitting device according to clause 11, wherein the capacitor is bonded and electrically connected to the drain electrode. 
     Clause 14. 
     The semiconductor light-emitting device according to any of clauses 10 to 13, wherein the capacitor is a silicon capacitor. 
     Clause 15. 
     The semiconductor light-emitting device according to any of clauses 3 to 14, wherein the semiconductor light-emitting element and the switching element are disposed apart from each other as viewed in the thickness direction. 
     Clause 16. 
     The semiconductor light-emitting device according to clause 2, wherein the switching element is disposed on a first side of the first resin surface in the thickness direction, and 
     the gate electrode, the source electrode, and the drain electrode are disposed on the second switching element surface. 
     Clause 17. 
     The semiconductor light-emitting device according to clause 16, further comprising a capacitor electrically intervening between the source electrode and the first element electrode or the second element electrode, wherein 
     the sealing resin covers at least a portion of the capacitor, and 
     the capacitor is disposed between the first resin surface and the second resin surface in the thickness direction. 
     Clause 18. 
     The semiconductor light-emitting device according to clause 17, wherein the sealing resin includes a first layer and a second layer, the first layer having a first surface facing in the first sense of the thickness direction and overlapping with the semiconductor light-emitting element as viewed in a direction perpendicular to the thickness direction, the second layer being disposed on a second side of the first layer in the thickness direction and having a second surface facing in the second sense of the thickness direction, and 
     the second interconnecting portion is disposed along the second surface of the second layer. 
     Clause 19. 
     The semiconductor light-emitting device according to clause 18, wherein the semiconductor light-emitting element and the capacitor are disposed apart from each other as viewed in the thickness direction, and 
     the switching element is disposed between a position of the semiconductor light-emitting element and a position of the capacitor as viewed in the thickness direction. 
     Clause 20. 
     The semiconductor light-emitting device according to clause 19, wherein the sealing resin includes a third layer disposed on the first side of the first layer in the thickness direction and having a third surface facing in the first sense of the thickness direction and a fourth surface facing in the second sense of the thickness direction, 
     the third layer covers the first element surface and has a first cavity extending to the first element electrode in the thickness direction, 
     the first interconnecting portion is disposed along the third surface of the third layer, and 
     the conductor includes a first embedded portion received in the first cavity and connected to the first element electrode and the first interconnecting portion. 
     Clause 21. 
     The semiconductor light-emitting device according to clause 20, wherein the sealing resin has a seventh cavity extending from the second surface of the second layer to the capacitor in the thickness direction, and an eighth cavity extending from the third surface of the third layer to the capacitor in the thickness direction, 
     the first interconnecting portion is electrically connected to the drain electrode, 
     the conductor includes a fourth interconnecting portion, a seventh embedded portion, and an eighth embedded portion, 
     the fourth interconnecting portion is disposed along the third surface of the third layer and electrically connected to the source electrode, 
     the seventh embedded portion is received in the seventh cavity and connected to the capacitor and the second interconnecting portion, and 
     the eighth embedded portion is received in the eighth cavity and connected to the capacitor and the fourth interconnecting portion. 
     Clause 22. 
     The semiconductor light-emitting device according to clause 20, wherein the sealing resin includes a fifth layer disposed on the first side of the third layer in the thickness direction and has the first resin surface, 
     the sealing resin has a ninth cavity extending from the second surface of the second layer to the capacitor in the thickness direction, a tenth cavity extending from the third surface of the third layer to the capacitor in the thickness direction, and an eleventh cavity and a twelfth cavity each extending from the first resin surface to the second surface of the second layer in the thickness direction, 
     the conductor includes a fifth interconnecting portion, a sixth interconnecting portion, a seventh interconnecting portion, a ninth embedded portion, a tenth embedded portion, an eleventh embedded portion, and a twelfth embedded portion, 
     the fifth interconnecting portion is disposed along the second surface of the second layer, 
     the sixth interconnecting portion is disposed along the first resin surface and electrically connected to the source electrode, 
     the seventh interconnecting portion is disposed along the first resin surface and electrically connected to the drain electrode, 
     the ninth embedded portion is received in the ninth cavity and connected to the capacitor and the fifth interconnecting portion, 
     the tenth embedded portion is received in the tenth cavity and connected to the capacitor and the first interconnecting portion, 
     the eleventh embedded portion is received in the eleventh cavity and connected to the fifth interconnecting portion and the sixth interconnecting portion, and 
     the twelfth embedded portion is received in the twelfth cavity and connected to the second interconnecting portion and the seventh interconnecting portion. 
     Clause 23. 
     The semiconductor light-emitting device according to clause 22, wherein the switching element overlaps with an entirety of each of the eleventh embedded portion and the twelfth embedded portion as viewed in the thickness direction. 
     Clause 24. 
     The semiconductor light-emitting device according to any of clauses 17 to 23, wherein the capacitor is a silicon capacitor. 
     Clause 25. 
     The semiconductor light-emitting device according to any of clauses 1 to 24, wherein the sealing resin is made of a material including a thermosetting synthetic resin and an additive containing a metal element forming a part of the conductor. 
     Clause 26. 
     The semiconductor light-emitting device according to clause 25, wherein the conductor includes a base layer in contact with the sealing resin and a plating layer in contact with the base layer, and 
     the base layer is composed of a metal element contained in the additive. 
     LIST OF REFERENCE CHARACTERS 
     
         
         A 1 , A 2 , A 3 , A 4 , A 5 , A 6 : Semiconductor light-emitting device 
         B 1 : Semiconductor light-emitting system 
           1 : Semiconductor light-emitting element 
           11 : First element surface  12 : Second element surface 
           13 : First element electrode  14 : Second element electrode 
           2 : Switching element  21 : First switching element surface 
           22 : Second switching element surface  231 : Drain electrode 
           232 : Gate electrode  233 : Source electrode 
           29 : Conductive bonding material  3 : Capacitor  31 ,  32 : Electrode 
           39 : Conductive bonding material  4 : Conductor  40   a : Base layer 
           40   b : Plating layer  401 : First interconnecting portion 
           401   a : Opening  402 : Second interconnecting portion 
           403 : Third interconnecting portion 
           404 : Fourth interconnecting portion 
           405 : Fifth interconnecting portion 
           406 : Sixth interconnecting portion 
           407 : Seventh interconnecting portion 
           412 ,  413 ,  414 ,  415 ,  416 ,  417 ,  418 ,  419 ,  420 ,  421 ,  422 ,  423 ,  424 , 
           425 ,  426 : Interconnecting portion 
           451 : First embedded portion  452 : Second embedded portion 
           453 : Third embedded portion  454 : Fourth embedded portion 
           455 : Fifth embedded portion  456 : Sixth embedded portion 
           457 : Seventh embedded portion  458 : Eighth embedded portion 
           459 : Ninth embedded portion  460 : Tenth embedded portion 
           461 : Eleventh embedded portion  462 : Twelfth embedded portion 
           471 ,  472 ,  473 ,  474 ,  475 ,  476 ,  477 ,  478 ,  479 ,  480 ,  481 ,  482 ,  483 : Embedded portion 
           6 : Sealing resin  601 : First resin surface 
           602 : Second resin surface 
           61 : First layer  611 : First surface  62 : Second layer 
           621 : Second surface  623 ,  624 ,  625 ,  626 : Groove 
           63 : Third layer  63 A: Lower layer  63 B: Upper layer 
           631 : Third surface  632 : Fourth surface  635 ,  636 : Groove 
           64 : Fourth layer  65 : Fifth layer  51 : First cavity 
           652 : Second cavity  653 : Third cavity 
           654 : Fourth cavity  655 : Fifth cavity 
           656 : Sixth cavity  657 : Seventh cavity 
           658 : Eighth cavity  659 : Ninth cavity 
           660 : Tenth cavity  661 : Eleventh cavity 
           662 : Twelfth cavity 
           671 ,  672 ,  673 ,  674 ,  675 ,  676 ,  677 ,  678 ,  679 ,  680 ,  681 ,  682 ,  683 : Cavity 
           7 : light-transmittable resin  91 : Gate driver 
           92 : DC power supply 
           93 : Resistor  94 : Diode