Patent Publication Number: US-8525202-B2

Title: LED package, method for manufacturing LED package, and packing member for LED package

Description:
CROSS-REFERENCE TO RELATED APPLICATIONS 
     This application is based upon and claims the benefit of priority from the prior Japanese Patent Application No. 2010-19780, filed on Jan. 29, 2010; the entire contents of which are incorporated herein by reference. 
     FIELD 
     Embodiments described herein relate generally to an LED (Light Emitting Diode) package, a method for manufacturing an LED package and a packing member for an LED package. 
     BACKGROUND 
     Heretofore, an LED package in which an LED chip is mounted is prepared by mounting the LED chip on a lead frame and then sealing the lead frame and the LED chip with a resin material (for instance, refer to JP-A 2004-274027 (Kokai)). 
     Such an LED package, however, has a problem that the LED package is difficult to handle because of a resin material included therein. Specifically, since the resin material is exposed from most part of an outer surface of each LED package, LED packages may adhere to each other or may adhere to another member due to the softness and tackiness of the resin materials. An example thereof is that inspection of LED packages is made difficult when the LED packages adhere to each other after manufacturing and before conveyance to the inspection process. Another example is that unpacking LED packages at a delivery destination is made difficult when the LED packages adhere to a packing member during delivery. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         FIG. 1  is a perspective view illustrating an LED package according to a first embodiment; 
         FIG. 2A  is a cross-sectional view illustrating the LED package according to the first embodiment, and  FIG. 2B  is a plan view illustrating a lead frame; 
         FIG. 3  is a flow chart illustrating a method for manufacturing the LED package according to the first embodiment; 
         FIGS. 4A to 6B  are process sectional views illustrating the method for manufacturing the LED package according to the first embodiment; 
         FIG. 7A  is a plan view illustrating a lead frame sheet in the first embodiment, and  FIG. 7B  is a partially enlarged plan view illustrating element regions of the lead frame sheet; 
         FIG. 8  is a graph illustrating influence of the surface roughness of the upper surface of the transparent resin body on the adhesiveness, with the horizontal axis indicating the surface roughness of the upper surface, and the vertical axis indicating the incidence rate of the adhesion between LED packages; 
         FIGS. 9A and 9B  are optical micrographs illustrating the upper surface of the transparent resin body in the LED package after manufacturing,  FIG. 9A  shows the upper surface having a surface roughness of 0.09 μm and  FIG. 9B  shows the upper surface having a surface roughness of 2.0 μm; 
         FIGS. 10A to 10H  are process sectional views illustrating a method for forming a lead frame sheet of a variation of the first embodiment; 
         FIG. 11  is a perspective view illustrating an LED package according to a second embodiment; 
         FIG. 12  is a side view illustrating the LED package according to the second embodiment; 
         FIG. 13  is a perspective view illustrating an LED package according to a third embodiment; 
         FIG. 14  is a cross-sectional view illustrating the LED package according to the third embodiment; 
         FIG. 15  is a perspective view illustrating an LED package according to a fourth embodiment; 
         FIG. 16  is a cross-sectional view illustrating the LED package according to the fourth embodiment; 
         FIG. 17  is a perspective view illustrating an LED package according to a fifth embodiment; 
         FIG. 18  is a cross-sectional view illustrating the LED package according to the fifth embodiment; 
         FIG. 19  is a perspective view illustrating an LED package according to a sixth embodiment; 
         FIG. 20  is a cross-sectional view illustrating the LED package according to the sixth embodiment; 
         FIG. 21  is a perspective view illustrating a packing member for an LED package according to a seventh embodiment; 
         FIG. 22  is a plan view illustrating one recessed portion of the packing member for the LED package according to the seventh embodiment; 
         FIG. 23  is a cross-sectional view illustrating one recessed portion of the packing member for the LED package according to the seventh embodiment; 
         FIG. 24  is a plan view illustrating a packing member for an LED package according to an eighth embodiment; 
         FIG. 25  is a plan view illustrating a packing member for an LED package according to a ninth embodiment; 
         FIG. 26  is a cross-sectional view illustrating the packing member for the LED package according to the ninth embodiment; and 
         FIG. 27  is a cross-sectional view for illustrating a packing member for an LED package according to a tenth embodiment. 
     
    
    
     DETAILED DESCRIPTION 
     In general, according to one embodiment, an LED package includes first and second lead frames, an LED chip and a resin body. The first and second lead frames are apart from each other. The LED chip is provided above the first and second lead frames, and the LED chip has one terminal connected to the first lead frame and another terminal connected to the second lead frame. In addition, the resin body covers the first and second lead frames and the LED chip, and has an upper surface with a surface roughness of 0.15 μm or higher and a side surface with a surface roughness higher than the surface roughness of the upper surface. 
     According to another embodiment, a method for manufacturing an LED package is disclosed. The method includes selectively removing part of a conductive material from a conductive sheet made of the conductive material to form a lead frame sheet in which a plurality of element regions are arranged in a matrix pattern, in which a base pattern including first and second lead frames arranged apart from each other is formed in each of the element regions, and in which the conductive material remains in each dicing region between the element regions in such a way as to connect the adjacent element regions to each other. The method includes mounting an LED chip on each of the element regions of the lead frame sheet, connecting one terminal of the LED chip to the first lead frame, and connecting another terminal of the LED chip to the second lead frame. The method includes forming a resin plate on the lead frame sheet to bury the LED chip into the resin plate, the resin plate having an upper surface with a surface roughness of 0.15 μm or higher. In addition, the method includes removing, by dicing, portions of the lead frame sheet and the resin plate disposed in the dicing region to cut the lead frame sheet and the resin plate into pieces each including the first and second lead frames and a resin body. A surface roughness of a surface processed by the dicing is increased higher than 0.15 μm by the cutting. 
     According to still another embodiment, a packing member for an LED package is disclosed. The LED package has first and second lead frames, an LED chip and a resin body. The first and second lead frames are apart from each other. The LED chip is provided above the first and second lead frames and the LED chip has one terminal connected to the first lead frame and another terminal connected to the second lead frame. The resin body covers the first and second lead frames and the LED chip, and has an upper surface with a surface roughness of 0.15 μm or higher and a side surface with a surface roughness higher than the surface roughness of the upper surface. In the packing member, a recessed portion to locate the LED package is formed. Unevenness is formed on at least a portion of a side surface of the recessed portion. The unevenness is greater than unevenness formed on the side surface of the resin body. 
     Hereinafter, embodiments of the invention will be described with reference to the drawings. 
     First of all, a first embodiment will be described. 
     The first to sixth embodiments are embodiments of LED packages. 
       FIG. 1  is a perspective view illustrating the LED package according to this embodiment. 
       FIG. 2A  is a cross-sectional view illustrating the LED package according to this embodiment.  FIG. 2B  is a plan view illustrating lead frames. 
     As shown in  FIGS. 1 to 2B , an LED package  1  according to this embodiment includes a pair of lead frames  11  and  12 . The lead frames  11  and  12  each have a planar shape, and are disposed on the same plane but apart from each other. The lead frames  11  and  12  may be formed of the same conductive material. For example, each of the lead frames includes a copper plate and a silver plated layer formed on an upper surface and a lower surface of the copper plate. Incidentally, no silver plated layer is formed on edge surfaces of the lead frames  11  and  12 , and the copper plates are exposed therefrom. 
     Hereinafter, in this specification, for convenience of description, an XYZ rectangular coordinate system is introduced. Among directions parallel to upper surfaces of the lead frames  11  and  12 , a direction from the lead frame  11  to the lead frame is defined as a +X direction. Among directions perpendicular to the upper surfaces of the lead frames  11  and  12 , an upward direction, i.e., a direction in which an LED chip  14  to be described later is mounted on the lead frames when seen therefrom, is defined as a +Z direction. One of directions which intersect both the +X direction and the +Z direction is defined as a +Y direction. Note that directions opposite to the +X direction, the +Y direction, and the +Z direction are respectively defined as a −X direction, a −Y direction, and a −Z direction. Meanwhile, for example, the “+X direction” and the “−X direction” may be collectively referred to as simply an “X direction.” 
     The lead frame  11  includes a base portion  11 a that is rectangular when seen in a Z direction. From this base portion  11   a , four extending portions  11   b ,  11   c ,  11   d ,  11   e  are extended. The extending portion  11   b  extends in the +Y direction from a central portion, in the X direction, of an edge of the base portion  11   a , the edge being directed in the +Y direction. The extending portion  11   c  extends in the −Y direction from a central portion, in the X direction, of an edge of the base portion  11   a,  the edge being directed in the −Y direction. The positions of the extending portion  11   b  and  11   c  correspond to each other in the X direction. The extending portions  11   d  and  11   e  extend in the −X direction respectively from end portions of an edge of the base portion  11   a , the edge being directed in the −X direction. In this manner, each of the extending portion  11   b  to  11   e  extends from a corresponding one of three different sides of the base portion  11   a.    
     The length in the X direction of the lead frame  12  is shorter than that of the lead frame  11 , and the length in a Y direction are the same between the two. The lead frame  12  includes a base portion  12   a  that is rectangular when seen in the Z direction. From this base portion  12   a , four extending portions  12   b ,  12   c ,  12   d ,  12   e  are extended. The extending portion  12   b  extends in the +Y direction from an end portion of the −X direction side, of an edge of the base portion  12   a , the edge being directed in the +Y direction. The extending portion  12   c  extends in the −Y direction from an end portion of the −X direction side, of an edge of the base portion  12   a , the edge being directed in the −Y direction. The extending portions  12   d  and  12   e  extend in the +X direction respectively from end portions of an edge of the base portion  12   a , the edge being directed in the +X direction. In this manner, each of the extending portions  12   b  to  12   e  extends from a corresponding one of three different sides of the base portion  12   a . The widths of the extending portions  11   d  and  11   e  of the lead frame  11  may be the same as or different from the widths of the extending portions  12   d  and  12   e  of the lead frame  12 . However, in case that the widths of the extending portions  11   d  and  11   e  are different from the widths of the extending portions  12   d  and  12   e , an anode and a cathode are easily distinguishable from each other. 
     A projected portion  11   g  is formed on a central portion, in the X direction, of the base portion  11   a  at a lower surface  11   f  of the lead frame  11 . Accordingly, the lead frame  11  has two levels of thickness. The central portion, in the X direction, of the base portion  11   a , i.e., a portion where the projected portion  11   g  is formed, is relatively thick, while an edge portion, in the +X direction, of the base portion  11   a  as well as the extending portion  11   b  to  11   e  are relatively thin.  FIG. 2B  shows a thin plate portion  11   t  that is a portion of the base portion  11   a  where the projected portion  11   g  is not formed. Similarly, a projected portion  12   g  is formed on a central portion, in the X direction, of the base portion  12   a  at a lower surface  12   f  of the lead frame  12 . Accordingly, the lead frame  12  has two levels of thickness. The central portion, in the X direction, of the base portion  12   a  is relatively thick because the projected portion  12   g  is formed, while an edge portion, in the −X direction, of the base portion  12   a  as well as the extending portions  12   b  to  12   e  are relatively thin.  FIG. 2B  shows a thin plate portion  12   t  that is a portion of the base portion  12   a  where the projected portion  12   g  is not formed. To put these differently, indentations are formed at lower surfaces of the edge portion, in the +X direction, of the base portion  11   a  and the edge portion, in the −X direction, of the base portion  12   a . The indentations extend in the Y direction along edges of the base portions  11   a  and  12   a . In  FIG. 2B , the relatively thin portions of the lead frames  11  and  12 , i.e., the thin plate portions and the extending portions, are indicated by hatch with broken lines. 
     The projected portions  11   g  and  12   g  are formed in regions of the lead frames  11  and  12 , the regions being apart from the edges of the lead frames  11  and  12 , the edges facing each other. Regions including these edges are the thin plate portions  11   t  and  12   t . An upper surface  11   h  of the lead frame  11  and an upper surface  12   h  of the lead frame  12  are on the same plane. A lower surface of the projected portion  11   g  of the lead frame  11  and a lower surface of the projected portion  12   g  of the lead frame  12  are on the same plane. The positions of upper surfaces of the extending portions in the Z direction coincide with the positions of the upper surfaces of the lead frames  11  and  12 . Thus, the extending portions are disposed on the same XY plane. 
     A die mounting material  13  is attached to a portion of a region of the upper surface  11   h  of the lead frame  11 , the region corresponding to the base portion  11   a . In this embodiment, the die mounting material  13  may be conductive or insulating. When the die mounting material  13  is conductive, the die mounting material  13  is formed of, for example, a silver paste, solder, eutectic solder, or the like. When the die mounting material  13  is insulating, the die mounting material  13  is formed of, for example, a transparent resin paste. 
     The LED chip  14  is provided on the die mounting material  13 . Specifically, the die mounting material  13  fixes the LED chip  14  to the lead frame  11 , and thereby the LED chip  14  is mounted on the lead frame  11 . The LED chip  14  has a substrate and a semiconductor layer stacked on the substrate. The semiconductor layer is made of gallium nitride (GaN) or the like and the substrate is a sapphire substrate, for example. The shape is, for example, a rectangular parallelepiped. Terminals  14   a  and  14   b  are provided on an upper surface of the LED chip  14 . The LED chip  14  emits blue light, for example, when a voltage is supplied between the terminal  14   a  and the terminal  14   b.    
     One end of a wire  15  is bonded to the terminal  14   a  of the LED chip  14 . The wire  15  is led out from the terminal  14   a  in the +Z direction (immediately upward direction) and curved in a direction between the −X direction and the −Z direction. The other end of the wire  15  is bonded to the upper surface  11   h  of the lead frame  11 . Thereby, the terminal  14   a  is connected to the lead frame  11  through the wire  15 . Meanwhile, one end of a wire  16  is bonded to the terminal  14   b . The wire  16  is led out from the terminal  14   b  in the +Z direction and curved in a direction between the +X direction and the −Z direction. The other end of the wire  16  is bonded to the upper surface  12   h  of the lead frame  12 . Thereby, the terminal  14   b  is connected to the lead frame  12  through the wire  16 . The wires  15  and  16  are formed of a metal, for example, gold or aluminum. 
     The LED package  1  also includes a transparent resin body  17 . The transparent resin body  17  is formed of a transparent resin, for example, a silicone resin. Herein, the term “transparent” includes meaning of translucent, also. The transparent resin body  17  has an appearance of rectangular parallelepiped, and covers the lead frames  11  and  12 , the die mounting material  13 , the LED chip  14 , and the wires  15  and  16 . The appearance of the transparent resin body  17  is the appearance of the LED package  1 . A portion of the lead frame  11  and a portion of the lead frame  12  are exposed from a lower surface and side surfaces of the transparent resin body  17 . 
     More specifically, the lower surface of the projected portion  11   g , which is a part of the lower surface  11   f  of the lead frame  11 , is exposed from the lower surface of the transparent resin body  17 . Tip edge surfaces of the extending portions  11   b  to lie are exposed from the side surfaces of the transparent resin body  17 . Meanwhile, the entire upper surface  11   h , a region of the lower surface  11   f  other than the projected portion  11   g , side surfaces of the projected portion  11   g , and edge surfaces of the base portion  11   a  of the lead frame  11  are covered with the transparent resin body  17 . Similarly, the lower surface of the projected portion  12   g  of the lead frame  12  is exposed from the lower surface of the transparent resin body  17 . Tip edge surfaces of the extending portions  12   b  to  12   e  are exposed from the side surfaces of the transparent resin body  17 . The entire upper surface  12   h , a region of the lower surface  12   f  other than the projected portion  12   g , side surfaces of the projected portion  12   g , and edge surfaces of the base portion  12   a  are covered with the transparent resin body  17 . In the LED package  1 , the lower surfaces of the projected portions  11   g  and  12   g , exposed from the lower surface of the transparent resin body  17 , serve as external electrode pads. As described above, the transparent resin body  17  has a rectangular shape when seen from above, and the tip edge surfaces of the aforementioned multiple extending portions of each of the lead frames  11  and  12  are exposed from a corresponding one of the is three different side surfaces of the transparent resin body  17 . Note that in this specification, the term “cover” is a concept including both a case where one that covers is in contact with one that is covered and a case where the two are not in contact with each other. 
     Multiple phosphors  18  are dispersed in the transparent resin body  17 . Each of the phosphors  18  is particulate, which absorbs light emitted from the LED chip  14  and emits light having a longer wavelength than the absorbed light. For example, the phosphor  18  absorbs part of blue light emitted from the LED chip  14  and emits yellow light. Thereby, blue light emitted by the LED chip  14  but not absorbed by the phosphor  18  and yellow light emitted from the phosphor  18  are emitted from the LED package  1 . Hence, emission light from the LED package  1  becomes white as a whole. As such a phosphor  18 , for example, YAG:Ce can be used. Incidentally, for convenience of illustration, in  FIGS. 1 ,  2 B and  3  as well as the drawings subsequent to  FIG. 3 , no phosphor  18  is illustrated. Moreover, in  FIG. 2A , the phosphors  18  are illustrated larger and fewer than the actual ones. 
     As such phosphors  18 , for example, a silicate-based phosphor which emits yellow-green, yellow, or orange light can be used. The silicate-based phosphor can be represented by the following general formula.
 
(2−x−y)SrO.x(Ba u ,Ca v )O.(1−a−b−c−d)SiO 2 .aP 2 O 5 bAl 2 O 3 cB 2 O 3 dGeO 2 :yEu 2+ 
 
     Here, 0&lt;x, 0.005&lt;y&lt;0.5, x+y≦1.6, 0≦a, b, c, d&lt;0.5, 0&lt;u, 0&lt;v, and u+v=1. 
     As the yellow phosphor, a YAG-based phosphor can also be used. The YAG-based phosphor can be represented by the following general formula.
 
(RE 1-x Sm x ) 3 (Al y Ga 1-y ) 5 O 12 :Ce
 
     Here, 0≦x&lt;1, 0≦y≦1, and RE is at least one element selected from Y and Gd. 
     As the phosphors  18 , sialon-based red and green phosphors can also be mixed for use. Specifically, the phosphors can be a green phosphor which absorbs blue light emitted from the LED chip  14  and emits green light, and a red phosphor which absorbs blue light and emits red light. 
     The sialon-based red phosphor can be represented by the following general formula, for example.
 
(M 1-x ,R x ) a1 AlSi b1 O c1 N d1  
 
     Here, M is at least one metal element except for Si and Al, and is particularly desirably at least one of Ca and Sr. R is a luminescent center element, and is particularly desirably Eu. Additionally, x, a1, b1, c1, and d1 satisfy 0&lt;x≦1, 0.6&lt;a1&lt;0.95, 2&lt;b1&lt;3.9, 0.25&lt;c1&lt;0.45, and 4&lt;d1&lt;5.7. 
     A specific example of such a sialon-based red phosphor is represented below.
 
Sr 2 Si 7 Al 7 ON 13 :Eu 2+ 
 
     The sialon-based green phosphor can be represented by the following general formula, for example.
 
(M 1-x ,R x ) a2 AlSi b2 O c2 N d2  
 
     Here, M is at least one metal element except for Si and Al, and is particularly desirably at least one of Ca and Sr. R is a luminescent center element, and is particularly desirably Eu. Additionally, x, a2, b2, c2, and d2 satisfy 0&lt;x≦1, 0.93&lt;a2&lt;1.3, 4.0&lt;b2&lt;5.8, 0.6&lt;c2&lt;1, and 6&lt;d2&lt;11. 
     A specific example of such a sialon-based green phosphor is represented below.
 
Sr 3 Si 13 Al 3 O 2 N 21 :Eu 2+ 
 
     Additionally, in this embodiment, an upper surface  17   a  of the transparent resin body  17  has a surface roughness (Ra) of 0.15 μm or higher. As described later, unevenness of the upper surface  17   a  of the transparent resin body  17  is formed as a result of transferring unevenness from a release sheet that is used when the transparent resin is molded. Thus, if the surface roughness of the release sheet is 0.15 μm or higher, the surface roughness of the upper surface  17   a  of the transparent resin body  17  can be 0.15 μm or higher. Note that, since the side surfaces of the transparent resin body  17  are surfaces processed by dicing, the surface roughnesses of the side surfaces are greater than the surface roughness of the upper surface thereof. 
     Next, a method for manufacturing the LED package according to this embodiment will be described. 
       FIG. 3  is a flowchart illustrating the method for manufacturing the LED package according to this embodiment. 
       FIGS. 4A to 6B  are process sectional views illustrating the method for manufacturing the LED package according to this embodiment. 
       FIG. 7A  is a plan view illustrating a lead frame sheet in this embodiment.  FIG. 7B  is a partially enlarged plan view illustrating element regions of the lead frame sheet. 
     First, as shown in  FIG. 4A , a conductive sheet  21  made of a conductive material is prepared. The conductive sheet  21  includes, for example, a strip-shaped copper plate  21   a  and silver plated layers  21   b  formed on upper and lower surfaces of the copper plate  21   a . Next, masks  22   a  and  22   b  are formed respectively on the upper and lower surfaces of the conductive sheet  21 . Openings  22   c  are selectively formed in the masks  22   a  and  22   b . The masks  22   a  and  22   b  can be formed by a printing method, for example. 
     Next, the conductive sheet  21  to which the masks  22   a  and  22   b  are attached is immersed in an etchant, and the conductive sheet  21  is wet-etched. Thereby, portions, of the conductive sheet  21 , locating inside the openings  22   c  are selectively removed by etching. In this event, for example, by adjusting the immersion time, the etching amount is controlled, so that the etching is stopped before the conductive sheet  21  is penetrated by sole etching from either the upper surface side or the lower surface side of the conductive sheet  21 . In this manner, half-etching is performed from the upper and lower surface sides. However, portions, of the conductive sheet  21 , etched from both the upper surface side and the lower surface side are penetrated. After that, the masks  22   a  and  22   b  are removed. 
     Thus, as shown in  FIGS. 3 and 4B , the copper plate  21   a  and the silver plated layers  21   b  are selectively removed from the conductive sheet  21 , and a lead frame sheet  23  is formed. Incidentally, for convenience of illustration, in  FIG. 4B  and the subsequent drawings, the copper plate  21   a  and the silver plated layer  21   b  are not distinguished from each other, and integrally illustrated as the lead frame sheet  23 . For example, three blocks B are set in the lead frame sheet  23  as shown in  FIG. 7A . In each of the blocks B, for example, approximately 1000 element regions P are set. As shown in  FIG. 7B , the element regions P are arranged in a matrix pattern, and a dicing region D is formed in a lattice pattern among the element regions P. In each of the element regions P, a basic pattern including lead frames  11  and  12  which are apart from each other is formed. The metal material forming the conductive sheet  21  is left remained in the dicing region D in such a way as to connect the adjacent element regions P to each other. 
     Specifically, although the lead frame  11  and the lead frame  12  are apart from each other in the element region P, a lead frame  11  belonging to a certain element region P is connected to a lead frame  12  belonging to an element region P adjacent to the certain element region P in the −X direction when seen therefrom. Between the two frames, a projected opening  23   a  directed in the +X direction is formed. Moreover, lead frames  11  respectively belonging to element regions P adjacent to each other in the Y direction are connected through a bridge  23   b . Similarly, lead frames  12  respectively belonging to element regions P adjacent to each other in the Y direction are connected through a bridge  23   c . Thus, four conductive members extend in three directions from each of base portions  11   a  and  12   a  of the lead frames  11  and  12 . Furthermore, by performing half-etching when the lead frame sheet  23  is etched from a lower surface side thereof, projected portions  11   g  and  12   g  are formed respectively on lower surfaces of the lead frames  11  and  12  (see  FIGS. 2A and 2B ). 
     Next, as shown in  FIGS. 3 and 4C , a reinforcement tape  24  made of, for example, a polyimide is pasted on the lower surface of the lead frame sheet  23 . Then, a die mounting material  13  is attached onto each of the lead frames  11  belonging to the element regions P of the lead frame sheet  23 . For example, a pasty die mounting material  13  is ejected onto the lead frame  11  from an ejector, or transferred onto the lead frame  11  in a mechanical way. Next, an LED chip  14  is mounted on the die mounting material  13 . Next, a thermal treatment for sintering the die mounting material  13  is performed (mount cure). Thus, in each of the element regions P of the lead frame sheet  23 , the LED chip  14  is mounted above the lead frame  11  with the die mounting material  13  interposed therebetween. 
     Next, as shown in  FIGS. 3 and 4D , by ultrasonic bonding, for example, one end of a wire  15  is bonded to a terminal  14   a  of the LED chip  14 , and the other end of the wire  15  is bonded to an upper surface  11   h  of the lead frame  11 . Moreover, one end of a wire  16  is bonded to a terminal  14   b  of the LED chip  14 , and the other end of the wire  16  is bonded to an upper surface  12   h  of the lead frame  12 . Thus, the terminal  14   a  is connected to the lead frame  11  through the wire  15 , and the terminal  14   b  is connected to the lead frame  12  through the wire  16 . 
     Next, as shown in  FIGS. 3 and 5A , a lower mold  101  is prepared. The lower mold  101  and an upper mold  102  described below form a set of molds. In an upper surface of the lower mold  101 , a rectangular parallelepiped-shaped recessed portion  101   a  is formed. Meanwhile, a transparent resin material such as a silicone resin is mixed with phosphors  18  (see  FIG. 2A ) and stirred to prepare a liquid or semi-liquid phosphor-containing resin material  26 . The release sheet  105  is disposed on an inner surface of the recessed portion  101   a  of the lower mold  101 , specifically, on a bottom surface and a side surface. The surface roughness of the release sheet  105  is taken to be 0.15 μm or higher. Next, the phosphor-containing resin material  26  is supplied into the recessed portion  101   a  of the lower mold  101  with a dispenser  103 . 
     Next, as shown in  FIGS. 3 and 5B , the aforementioned lead frame sheet  23  on which the LED chips  14  are mounted is attached on a lower surface of the upper mold  102  in a way that the LED chips  14  face downward. Then, the upper mold  102  is pressed against the lower mold  101 , and the molds are clamped. Thereby, the lead frame sheet  23  is pressed against the phosphor-containing resin material  26 . In this event, the phosphor-containing resin material  26  covers the LED chips  14 , the wires  15  and  16 , and enters portions, of the lead frame sheet  23 , removed by the etching. In this manner, the phosphor-containing resin material  26  is molded. It is preferable that the mold process is performed in a vacuum atmosphere. This prevents bubbles generated in the phosphor-containing resin material  26  from adhering to portions half-etched in the lead frame sheet  23 . 
     Next, as shown in  FIGS. 3 and 5C , with an upper surface of the lead frame sheet  23  being pressed against the phosphor-containing resin material  26 , a thermal treatment (mold cure) is performed to cure the phosphor-containing resin material  26 . Then, the upper mold  102  is separated from the lower mold  101  as shown in  FIG. 6A . Thus, a transparent resin plate  29  is formed on the lead frame sheet  23 . The transparent resin plate  29  covers the entire upper surface and a portion of the lower surface of the lead frame sheet  23 , and the LED chips  14  and so forth are buried therein. In this event, unevenness of the surface of the release sheet  105  is transferred onto a surface and the surface roughness is 0.15 μm or higher. In the transparent resin plate  29 , the phosphors  18  (See  FIG. 2A ) are dispersed. Subsequently, the reinforcement tape  24  is peeled from the lead frame sheet  23 . Thereby, the lower surfaces of the projected portions  11   g  and  12   g  of the lead frames  11  and  12  (See  FIGS. 2A and 2B ) are exposed from the surface of the transparent resin plate  29 . 
     Next, as shown in  FIGS. 3 and 6B , with a blade  104 , an assembly of the lead frame sheet  23  and the transparent resin plate  29  is diced from a side of the lead frame sheet  23 . Specifically, the dicing is performed from the −Z direction side toward the +Z direction. Thereby, portions, of the lead frame sheet  23  and the transparent resin plate  29 , disposed in the dicing region D are removed. As a result, portions, of the lead frame sheet  23  and the transparent resin plate  29 , disposed in the element regions P are segmented, and thus LED packages  1  shown in  FIGS. 1 to 2B  are manufactured. Incidentally, the assembly of the lead frame sheet  23  and the transparent resin plate  29  may be diced from a side of the transparent resin body  29 . 
     In each of the LED packages  1  after dicing, the lead frames  11  and  12  are separated from the lead frame sheet  23 . Moreover, the transparent resin plate  29  is parted to form transparent resin bodies  17 . The upper surface  17   a  of the transparent resin body  17  has a surface roughness of 0.15 μm or higher. Furthermore, portions, of the dicing region D, extending in the Y direction pass through the openings  23   a  of the lead frame sheet  23 , and extending portions  11   d ,  11   e ,  12   d,    12   e  are formed in the lead frames  11  and  12 . In addition, the bridges  23   b  are parted, and extending portions  11   b  and  11   c  are formed in the lead frame  11 . The bridges  23   c  are parted, and extending portions  12   b  and  12   c  are formed in the lead frame  12 . Tip edge surfaces of the extending portions  11   b  to  11   e  and  12   b  to  12   e  are exposed from side surfaces of the transparent resin body  17   
     Next, as shown in  FIG. 3 , the LED package  1  is conveyed from a dicing apparatus to a test apparatus and the various tests are performed. In this event, tip edge surfaces of the extending portions  11   b  to  11   e  and  12   b  to  12   e  can be used as test terminals. 
     Next, effects and advantages of this embodiment will be described. 
     In the LED package  1  according to this embodiment, the upper surface  17   a  of the transparent resin body  17 , which forms the upper surface of the LED package, has a surface roughness of 0.15 μm or higher. For this reason, the LED package  1  is less likely to be attached to another LED package  1 . This is presumably because of the increased surface roughness of the transparent resin body  17 . The increased surface roughness makes it less likely that a vacuum gap is formed between the transparent resin body  17  and another transparent resin body  17  that comes into contact therewith. Consequently, the two are less likely to be attached to each other. Hence, the LED package  1  is easily handled, also. For example, since the LED packages  1  are less likely to adhere to each other after the aforementioned dicing process, the subsequent test is easily performed. Moreover, the LED package  1  is less likely to be attached also to another member; accordingly, the LED package  1  is easily handled after the test, as well. For example, the LED package  1  is less likely to adhere also to a packing member for holding the LED package  1  during delivery; accordingly, the unpacking operation and the mounting operation are easily performed at the delivery destination, as well. 
     Not that, since the side surfaces of the transparent resin body  17 , which form the side surfaces of the LED package, are surfaces processed by dicing, the surface roughnesses thereof are originally higher than the surface roughness of the upper surface  17   a . This makes adhesion to the side surfaces less likely. Moreover, the metallic lead frames  11  and  12  are exposed from the lower surface of the transparent resin body  17 , which forms the lower surface of the LED package. This would make adhesion to the lower surface less likely, also. Thus, when the upper surface  17   a  of the transparent resin body  17  has a surface roughness of 0.15 μm or higher, the adhesiveness of the LED package  1  is significantly reduced, and the handling characteristics are greatly improved. 
     Hereinafter, the effects will be described based on specific data. 
       FIG. 8  is a graph illustrating influence of the surface roughness of the upper surface of the transparent resin body on the adhesiveness, with the horizontal axis indicating the surface roughness of the upper surface, and the vertical axis indicating the incidence rate of the adhesion between LED packages. 
       FIGS. 9A and 9B  are optical micrographs illustrating the upper surface of the transparent resin body in the LED package after manufacturing.  FIG. 9A  shows the upper surface having a surface roughness of 0.09 μm.  FIG. 9B  shows the upper surface having a surface roughness of 2.0 μm. 
     LED packages  1  were manufactured according to the aforementioned method using multiple kinds of the release sheets  105  that had different surface roughnesses from each other. In this event, several thousands of the LED packages  1  were manufactured from one lead frame sheet  33  as mentioned above. Then, whether the LED packages  1  adhered to each other after dicing was observed, and the incident rate was measured. For example, when two LED packages  1  adhere to each other among 100 LED packages  1 , the incident rate was calculated to be 2%. This incident rate was plotted on the vertical axis of  FIG. 8 . Moreover, the surface roughness of the upper surface of the LED package  1  after manufacturing was measured. This measurement result was plotted on the horizontal axis of  FIG. 8 . Note that, in measuring the surface roughness, when the surface roughness varies depending on the position of the upper surface  17   a , the surface roughness is measured at multiple positions of the upper surface  17   a , and the average value is adopted. Meanwhile, when the surface roughness varies depending on the measurement direction, the surface roughness is measured along two directions intersecting each other, and the average value is adopted. 
     As shown in  FIG. 8 , the greater the surface roughness of the upper surface of the LED package  1 , i.e., the upper surface  17   a  of the transparent resin body  17 , the lower the incident rate of the adhesion. Moreover, when the upper surface has a surface roughness of 0.15 μm or higher, no adhesion occurred. As shown in  FIG. 9A , the upper surface having a surface roughness of 0.09 μm was smooth. In contrast, as shown in  FIG. 9B , the upper surface having a surface roughness of 2.0 μm was like a pearskin finish. 
     Additionally, in this embodiment, since the surface roughness of the upper surface  17   a  of the transparent resin body  17  is high, the total reflection of light emitted from the LED chip  14  at the upper surface  17   a  is suppressed. Thus, the light extraction efficiency is improved. This effect is particularly noticeable when an LED package includes no phosphor  18  dispersed in the transparent resin body  17  and emits single-color light. 
     Next, effects and advantages other than the above of this embodiment will be described. 
     In the LED package  1  according to this embodiment, no enclosure made of a white resin is provided. Accordingly, no enclosure is degraded by absorbing light and heat generated from the LED chip  14 . Particularly, when an enclosure is formed of a thermoplastic polyamide resin, the resin is likely to be degraded. In this embodiment, however, there is no problem of such degradation. For this reason, the LED package  1  according to this embodiment has a high durability. Thus, the LED package  1  according to this embodiment has a long life and a high reliability, and is applicable in wide usage. 
     Furthermore, in the LED package  1  according to this embodiment, no enclosure for covering a side surface of the transparent resin body  17  is provided. Accordingly, light is emitted at a wide angle. For this reason, the LED package  1  according to this embodiment is advantageously used when light needs to be emitted at a wide angle, for example, used for illumination and as a backlight of a liquid crystal television. 
     Still furthermore, in the LED package  1  according to this embodiment, the transparent resin body  17  covers portions of the lower surfaces and large portions of the edge surfaces of the lead frames  11  and  12 , and holds peripheral portions of the lead frames  11  and  12 . In this manner, the lower surfaces of the projected portions  11   g  and  12   g  of the lead frames  11  and  12  are exposed from the transparent resin body  17 , and external electrode pads are formed; moreover, the holdability for the lead frames  11  and  12  is increased. Specifically, by forming the projected portions  11   g  and  12   g  on the central portions, in the X direction, of the base portions  11   a  and  12   a,  indentations are formed at two edge portions, in the X direction, of each lower surface of the base portions  11   a  and  12   a . The transparent resin body  17  goes around and into the indentations to strongly hold the lead frames  11  and  12 . This makes the lead frames  11  and  12  hardly detached from the transparent resin body  17  in dicing, and the yield of the LED package  1  is improved. Moreover, this can prevent that lead frames  11  and  12  detach from the transparent resin body  17  by temperature stress in using the LED package  1 . 
     Still furthermore, in the LED package  1  according to this embodiment, the silver plated layers are formed on the upper and lower surfaces of the lead frames  11  and  12 . Since silver plated layers have a high light reflectivity, the LED package  1  according to this embodiment has a high light extraction efficiency. 
     Still furthermore, in this embodiment, from the single conductive sheet  21 , a large number, for example, approximately several thousands, of the LED packages  1  can be manufactured at once. Thus, the manufacturing cost per LED package is reduced. In addition, since no enclosure is provided, the numbers of components and processes are small, and the cost is low. 
     Still furthermore, in this embodiment, the lead frame sheet  23  is formed by wet-etching. For this reason, when an LED package of novel layout is manufactured, only the original plates of the masks need to be prepared. The initial cost is suppressed to a lower extent than a case where a lead frame sheet  23  is formed by a method such as pressing with a mold. 
     Still furthermore, in the LED package  1  according to this embodiment, the extending portions are extended from the base portions  11   a  and  12   a  of the lead frames  11  and  12 . Thus, the base portions themselves are prevented from being exposed from the side surfaces of the transparent resin body  17 , and the exposed areas of the lead frames  11  and  12  are reduced. Moreover, the contact area between lead frames  11  and  12  and the transparent resin body  17  can be made to increase. As a result, the lead frames  11  and  12  are prevented from being detached from the transparent resin body  17 . Moreover, corrosion of the lead frames  11  and  12  is also suppressed. 
     The effects will be considered from the viewpoint of the manufacturing method. The openings  23   a  and the bridges  23   b  and  23   c  are provided in the lead frame sheet  23  in a way that the openings  23   a  and the bridges  23   b  and  23   c  exist within the dicing region D as shown in  FIG. 7B . Thereby, the amount of metal portion within the dicing region D is reduced. Thus, dicing is performed easily, and wearing of the dicing blade is suppressed. Moreover, in this embodiment, from each of the lead frames  11  and  12 , four extending portions are extended in three directions. Thus, in the process of mounting the LED chip  14  shown in  FIG. 4C , a lead frame  11  is surely supported in three directions by lead frames  11  and  12  in adjacent element regions P, and the mountability is high. Similarly, in the wire bonding process shown in  FIG. 4D  also, bonding positions of the wires are surely supported in the three directions. Accordingly, the ultrasound applied in the ultrasonic bonding scarcely escapes, and the wires are favorably bonded to the lead frames and the LED chip. 
     Still furthermore, in the dicing process shown in  FIG. 6B  of this embodiment, the dicing is performed from the lead frame sheet  23  side. Thereby, the metal material forming the end portions of the lead frames  11  and  12  subjected to cutting stretches in the +Z direction on the side surface of the transparent resin body  17 . For this reason, this metal material never stretches in the −Z direction on the side surface of the transparent resin body  17 , nor protrudes from the lower surface of the LED package  1 ; hence, no burr is formed. Thus, when the LED package  1  is mounted, mounting failure due to a burr never happens. 
     Next, a variation of this embodiment will be described. 
     This variation is a variation of a method for forming a lead frame sheet. 
     Specifically, in this variation, the method for forming a lead frame sheet shown in  FIG. 4A  is different from that in the above-described first embodiment. 
       FIGS. 10A to 10H  are process sectional views illustrating the method for forming the lead frame sheet of this variation. 
     First, a copper plate  21   a  is prepared as shown in  FIG. 10A , and cleaned. Next, as shown in  FIG. 10B , both surfaces of the copper plate  21   a  are coated with a resist and then dried to form resist films  111 . Next, as shown in  FIG. 10C , mask patterns  112  are disposed on the resist films  111 , and subjected to exposure with ultraviolet irradiation. Thereby, exposed portions of the resist films  111  are cured, and resist masks  111   a  are formed. Next, as shown in  FIG. 10D , development is performed, and non-cured portions of the resist films  111  are washed away. Thereby, the resist patterns  111   a  are left remained on the upper and lower surfaces of the copper plate  21   a . Next, as shown in  FIG. 10E , using the resist patterns  111   a  as masks, etching is performed to remove exposed portions of the copper plate  21   a  from both surfaces. In this event, the etching depth is approximately half the thickness of the copper plate  21   a . Thereby, a region etched only from one surface side is half-etched, while a region etched from both surface sides is penetrated. Next, as shown in  FIG. 10F , the resist patterns  111   a  are removed. Next, as shown in  FIG. 10G , end portions of the copper plate  21   a  are covered with masks  113 , and then plated. Thereby, silver plated layers  21   b  are formed on surfaces of portions, other than the end portions, of the copper plate  21 . Next, as shown in  FIG. 10H , the resultant is cleaned, and the masks  113  are removed. After that, inspection is performed. In this manner, a lead frame sheet  23  is formed. Configuration, manufacturing method, effects, and advantages, other than the above, of this variation are the same as those of the above-described first embodiment. 
     Next, a second embodiment will be described. 
       FIG. 11  is a perspective view illustrating an LED package according to this embodiment. 
       FIG. 12  is a side view illustrating the LED package according to this embodiment. 
     As shown in  FIGS. 11 and 12 , a LED package  2  according to this embodiment is different from the above-described LED package  1  according to the first embodiment (see  FIG. 1 ) in that the lead frame  11  (see  FIG. 1 ) is divided in the X direction into two lead frames  31  and  32 . The lead frame  32  is disposed between the lead frame  31  and the lead frame  12 . Extending portions  31   d  and  31   e  corresponding to the extending portions  11   d  and  11   e  of the lead frame  11  (see  FIG. 1 ) are formed on the lead frame  31 . Extending portions  31   b  and  31   c  extending respectively in the +Y direction and the −Y direction are formed from a base portion  31   a . The positions of the extending portions  31   b  and  31   c  correspond to each other in the X direction. Furthermore, the wire  15  is bonded to the lead frame  31 . Meanwhile, extending portions  32   b  and  32   c  corresponding to the extending portions  11   b  and  11   c  of the lead frame  11  (see  FIG. 1 ) are formed on the lead frame  32 . The LED chip  14  is mounted on the lead frame  32  with the die mounting material  13  interposed therebetween. Moreover, projected portions corresponding to the projected portion  11   g  of the lead frame  11  are formed on the lead frames  31  and  32  in a divided manner as projected portions  31   g  and  32   g,  respectively. 
     In this embodiment, the lead frames  31  and  12  function as external electrodes when a potential is applied from the outside. Meanwhile, no potential needs to be applied to the lead frame  32 . The lead frame  32  can be used as a lead frame dedicated as a heat sink. Thus, when multiple LED packages  2  are mounted on one module, lead frames  32  can be connected to a common heat sink. Incidentally, a ground potential may be applied to the lead frame  32 , or the lead frame  32  may be in the state of floating. Moreover, when the LED package  2  is mounted on a motherboard, a so-called Manhattan phenomenon can be suppressed by bonding solder balls to each of the lead frame  31 ,  32  and  12 . The Manhattan phenomenon refers to a phenomenon that when a device or the like is mounted on a board with multiple solder balls or the like interposed therebetween, the device stands up due to different melting timing of the solder balls in a reflow furnace and the surface tension of the solder. This phenomenon causes mounting failure. In this embodiment, the lead frame layout is symmetrical with respect to the X direction, and the solder balls are densely disposed in the X direction; thereby, the Manhattan phenomenon is less likely to occur. 
     Moreover, in this embodiment, the lead frame  31  is supported by the extending portions  31   b  to  31   e  in three directions. Accordingly, the wire  15  is favorably bonded. Similarly, since the lead frame  12  is supported by the extending portions  12   b  to  12   e  in three directions, the wire  16  is favorably bonded. 
     Such an LED package  2  can be manufactured by a similar method to that in the above-described first embodiment, if the basic pattern of the element regions P of the lead frame sheet  23  is altered in the above-described process shown in  FIG. 4A . Specifically, LED packages of various layouts can be manufactured only by altering the patterns of the masks  22   a  and  22   b  according to the manufacturing method described in the above-described first embodiment. Configuration, manufacturing method, effects, and advantages, other than the above, of this embodiment are the same as those of the above-described first embodiment. 
     Next, a third embodiment will be described. 
       FIG. 13  is a perspective view illustrating an LED package according to this embodiment. 
       FIG. 14  is a cross-sectional view illustrating the LED package according to this embodiment. 
     As shown in  FIGS. 13 and 14 , an LED package  3  according to this embodiment includes a Zener diode chip  36  and so forth in addition to the configuration of the LED package (see  FIG. 1 ) according to the above-described first embodiment. The Zener diode chip  36  is connected between the lead frame  11  and the lead frame  12 . Specifically, a die mounting material  37  made of a conductive material such as a silver paste or solder is attached onto an upper surface of the lead frame  12 , and the Zener diode chip  36  is provided on the die mounting material  37 . Thus, the Zener diode chip  36  is mounted on the lead frame  12  with the die mounting material interposed therebetween, and a lower surface terminal (unillustrated) of the Zener diode chip  36  is connected to the lead frame  12  with the die mounting material  37 . Moreover, an upper surface terminal  36   a  of the Zener diode chip  36  is connected to the lead frame  11  through a wire  38 . Specifically, one end of the wire  38  is connected to the upper surface terminal  36   a  of the Zener diode chip  36 , and the wire  38  is led out from the upper surface terminal  36   a  in the +Z direction and curved in a direction between the −Z direction and the −X direction. The other end of the wire  38  is bonded to an upper surface of the lead frame  11 . 
     Thus, in this embodiment, the Zener diode chip  36  is connected in parallel to the LED chip  14 . As a result, the durability for electrostatic discharge (ESD) is improved. Configuration, manufacturing method, effects, and advantages, other than the above, of this embodiment are the same as those of the above-described first embodiment. 
     Next, a fourth embodiment will be described. 
       FIG. 15  is a perspective view illustrating an LED package according to this embodiment. 
       FIG. 16  is a cross-sectional view illustrating the LED package according to this embodiment. 
     As shown in  FIGS. 15 and 16 , an LED package  4  according to this embodiment is different from the above-described LED package  3  (see  FIG. 13 ) according to the third embodiment in that the Zener diode chip  36  is mounted on the lead frame  11 . In this case, the lower surface terminal of the Zener diode chip  36  is connected to the lead frame  11  with the die mounting material  37  interposed therebetween, and the upper surface terminal is connected to the lead frame  12  through the wire  38 . Configuration, manufacturing method, effects, and advantages, other than the above, of this embodiment are the same as those of the above-described third embodiment. 
     Next, a fifth embodiment will be described. 
       FIG. 17  is a perspective view illustrating an LED package according to this embodiment. 
       FIG. 18  is a cross-sectional view illustrating the LED package according to this embodiment. 
     As shown in  FIGS. 17 and 18 , an LED package  5  according to this embodiment is different from the above-described LED package  1  (see  FIG. 1 ) according to the first embodiment in that an LED chip  41  of vertical conduction type is provided instead of the LED chip  14  of upper surface terminal type. Specifically, in the LED package  5  according to this embodiment, a die mounting material  42  made of a conductive material such as a silver paste or solder is formed on an upper surface of the lead frame  11 . The LED chip  41  is mounted on the lead frame  11  with the die mounting material  42  interposed therebetween. A lower surface terminal (unillustrated) of the LED chip  41  is connected to the lead frame  11  through the die mounting material  42 . Meanwhile, an upper surface terminal  41   a  of the LED chip  41  is connected to the lead frame  12  through a wire  43 . 
     In this embodiment, the LED chip  41  of vertical conduction type is adopted, and the number of wires is one. This surely prevents contacting of wires, and simplifies the wire bonding process. Configuration, manufacturing method, effects, and advantages, other than the above, of this embodiment are the same as those of the above-described first embodiment. 
     Next, a sixth embodiment will be described. 
       FIG. 19  is a perspective view illustrating an LED package according to this embodiment. 
       FIG. 20  is a cross-sectional view illustrating the LED package according to this embodiment. 
     As shown in  FIGS. 19 and 20 , an LED package  6  according to this embodiment is different from the above-described LED package  1  (see  FIG. 1 ) according to the first embodiment in that an LED chip  46  of flip type is provided instead of the LED chip  14  of upper surface terminal type. Specifically, in the LED package  6  according to this embodiment, two terminals are provided on a lower surface of the LED chip  46 . Moreover, the LED chip  46  is disposed like a bridge so as to straddle the lead frame  11  and the lead frame  12 . One of the lower surface terminals of the LED chip  46  is connected to the lead frame  11 , and the other lower surface terminal is connected to the lead frame  12 . 
     In this embodiment, the LED chip  46  of flip type is adopted and no wire is used. This increases the light extraction efficiency in the upward direction, and helps to omit  3 o the wire bonding process. Moreover, rupturing of a wire due to thermal stress of the transparent resin body  17  is also prevented. Configuration, manufacturing method, effects, and advantages, other than the above, of this embodiment are the same as those of the above-described first embodiment. 
     The LED package according to the invention is not limited to the above-described first to sixth embodiments. Each of the above-described embodiments can be implemented in combination with the other embodiments. Moreover, those obtained through design alteration, addition, or deletion of the components, or those obtained through condition alteration, addition, or omission of the processes, which will be made appropriately on the above-described first to sixth embodiments by those skilled in the art are included in the scope of the invention, as long as such variations include the gist of the invention. 
     For example, in the above-described first embodiment, an example has been shown that the surface roughness of the upper surface  17   a  is controlled in a manner of transferring the unevenness of the surface of the release sheet  105  onto the upper surface  17   a  of the transparent resin body  17 . However, the invention is not limited thereto. Any method may be adopted to roughen the surface of the upper surface  17   a . For example, the upper surface  17   a  may be roughened by performing liquid honing on the LED package  1  after dicing. Alternatively, the phosphor-containing resin material  26  may be supplied on the release sheet having a smooth surface, the release sheet being disposed on the bottom surface of the recessed portion  101   a  of the lower mold  101 , the bottom surface having a surface roughness of 0.15 μm or higher. In this manner also, the upper surface  17   a  can be roughened. 
     For example, in the above-described first embodiment, an example has been shown that the lead frame sheet  23  is formed by wet-etching. However, the invention is not limited thereto. For example, the lead frame sheet  23  may be formed in a mechanical way such as pressing. Moreover, in the above-described first to sixth embodiments, examples have been shown that one LED chip is mounted on one LED package. However, the invention is not limited thereto. Multiple LED chips may be mounted on one LED package. Furthermore, a groove may be formed on the upper surface of the lead frame between a region where a die mounting material is to be formed and a region where a wire is to be bonded. Alternatively, a recessed portion may be formed on the upper surface of the lead frame in a region where a die mounting material is to be formed. Thereby, even if the supply amount or supply position of the die mounting material varies, the die mounting material is prevented from flowing out to the region where the wire is to be bonded, and the wire bonding is prevented from being inhibited. 
     Still furthermore, in the above-described first embodiment, an example has been shown that the lead frame is a copper plate and a silver plated layer formed on the upper and lower surfaces of the copper plate. However, the invention is not limited thereto. For example, a rhodium (Rh) plated layer may be formed on at least one of silver plated layers respectively formed on the upper and lower surfaces of a copper plate. Alternatively, a copper (Cu) plated layer may be formed between a copper plate and a silver plated layer. Furthermore, a gold-silver alloy (Au—Ag alloy) plated layer may be formed on a nickel (Ni) plated layer formed on each of the upper and lower surfaces of a copper plate. 
     Still furthermore, in the above-described embodiments, examples have been shown that the LED chip is a chip which emits blue light, that the phosphor is a phosphor which absorbs blue color and emits yellow light, and that the color of light emitted from the LED package is white. However, the invention is not limited thereto. The LED chip may emit visible light of any color other than blue, or may emit ultraviolet light or infrared radiation. The phosphor is not limited to the phosphor which emits yellow light. For example, the phosphor may emit blue light, green light, or red light. Moreover, the light emitted from the LED chip may be emitted directly from the LED package without providing the phosphor. 
     Still furthermore, in the above-described embodiments, examples have been shown that the base portion of the lead frame has a rectangular shape when seen from above. However, the base portion may have a shape that at least one corner thereof is cut off. Thereby, the corner of the lead frame with a right angle or an acute angle is not provided around corners of the LED package. And the chamfered corner will not serve as the origin of resin peeling and crack of the transparent resin body. As a result, the incidences of resin peeling and crack are suppressed in the LED package as a whole. 
     According to the above-described first to sixth embodiments, an LED package easy to handle and a method for manufacturing the LED package are provided. 
     Next, a seventh embodiment will be described. 
     The seventh embodiment to a tenth embodiment are embodiments of a packing member for an LED package. 
       FIG. 21  is a perspective view illustrating a packing member for an LED package according to this embodiment. 
       FIG. 22  is a plan view illustrating one recessed portion of the packing member for the LED package according to this embodiment. 
       FIG. 23  is a cross-sectional view illustrating the recessed portion of the packing member for the LED package according to this embodiment. 
     A packing member  201  for an LED package according to this embodiment is to locate an LED package as described in the above-described first to sixth embodiments. This embodiment shows an example of housing the LED package  1  according to the above-described first embodiment. However, the LED package that can be located is not limited to ones shown in the above-described first to sixth embodiments. For example, in the LED package, an upper surface of the transparent resin body may have a surface roughness lower than 0.15 μm. 
     As shown in  FIG. 21 , the packing member  201  is, for example, a carrier tape. The packing member  201  has a belt-like shape, and is normally used while wound around a reel (unillustrated). Multiple recessed portions  202  are formed in one surface of the packing member  201 . The recessed portions  202  are arranged in one row along a direction in which the packing member  201  extends. The packing member  201  is formed of, for example, a resin material such as a polystyrene, polycarbonate, polyester, or vinyl chloride. Alternatively, the packing member  201  may be formed of paper. Carbon (C) may be added in order to impart conductivity to the packing member  201 . 
     As shown in  FIGS. 22 and 23 , the recessed portion  202  has a substantially rectangular parallelepiped shape. The recessed portion  202  is formed of one substantially rectangular bottom surface  202   a  when seen from above, and four side surfaces  202   b  to  202   e . Two projected portions  203  are formed at each of the side surfaces  202   b  to  202   e . The projected portions  203  are arranged along a direction parallel to the surface of the packing member  201 . Thereby, unevenness is formed on each of the side surfaces  202   b  to  202   e . The unevenness is greater than unevenness formed on a side surface of the LED package  1 , i.e., a side surface of the transparent resin body  17 . 
     Next, a method for using the packing member for an LED package according to this embodiment configured as mentioned above, i.e., a method for conveying an LED package according to this embodiment, will be described. 
     In this embodiment, while a packing member  201  that is a carrier tape is transferred from one reel to another reel, each LED package  1  is individually located into one recessed portion  202  of the packing member  201 . In this event, the LED package  1  is disposed upward, and a lower surface of the LED package  1  faces a bottom surface  202   a  of the recessed portion  202 . Side surfaces of the LED package  1  face side surfaces  202   b  to  202   e  of the recessed portion  202 . Next, a cover tape  210  covers an upper end portion of the recessed portion  202  to seal the inside of the recessed portion  202 . Then, the packing member  201  and the cover tape  210  are conveyed while wound onto the reel, for example. 
     Next, effects and advantages of this embodiment will be described. 
     In the packing member  201  according to this embodiment, the projected portions  203  are formed at the side surfaces  202   b  to  202   e  of the recessed portion  202 . This makes small the contact area between the side surfaces of the recessed portion  202  and the side surfaces of the LED package  1  when the LED package  1  is located. For this reason, the side surfaces of the LED package  1  are less likely to adhere to the side surfaces of the recessed portion  202 , and the LED package  1  is easily handled. Thereby, for example, at the delivery destination, the operatability of unpacking the LED package  1  from the inside of the recessed portion  202  of the packing member  201  becomes favorable. Incidentally, since metallic lead frames are exposed from the lower surface of the LED package  1 , the lower surface of the LED package  1  is originally less likely to adhere to the packing member. 
     Next, the eighth embodiment will be described. 
       FIG. 24  is a plan view illustrating a packing member for the LED package according to this embodiment. 
     As shown in  FIG. 24 , in a packing member  211  according to this embodiment, projected portions  213  formed at side surfaces of the recessed portion  202  have rounded tips. The projected portions  213  are semi-circular. This further reduces the contact area between the side surfaces of the recessed portion  202  and side surfaces of the LED package  1 . The packing member  211  and the LED package are surely prevented from adhering to each other. Configuration, use method, effects and advantages, other than the above, of this embodiment are the same as those of the above-described seventh embodiment. 
     Next, the ninth embodiment will be described. 
       FIG. 25  is a plan view illustrating a packing member for the LED package according to this embodiment. 
       FIG. 26  is a cross-sectional view illustrating the packing member for the LED package according to this embodiment. 
     As shown in  FIGS. 25 and 26 , in a packing member  204  according to this embodiment, projected portions  215  are formed at side surfaces of the recessed portion  202 . Each of the projected portions  215  has a semi-circular shape extending in a depth direction of the recessed portion  202 . Such packing members  204  can be manufactured by a pressing method, and accordingly are manufactured easily. Configuration, use method, effects and advantages, other than the above, of this embodiment are the same as those of the above-described eighth embodiment. 
     Next, the tenth embodiment will be described. 
       FIG. 27  is a cross-sectional view illustrating a packing member for the LED package according to this embodiment. 
     As shown in  FIG. 27 , a packing member  221  according to this embodiment includes a carrier tape  222  and a cover tape  223 . The configuration of the carrier tape  222  is the same as the configuration of the above-described packing member  201  according to the seventh embodiment. The cover tape  223  is formed of, for example, a resin material or paper, and is formed of the same material as the material of, for example, the carrier tape  222 . The cover tape  223  has such a belt-like shape as to cover the carrier tape  222 . Moreover, projected portions  224  are formed at a lower surface, i.e., a surface facing the carrier tape  222 , of the cover tape  223 . The projected portions  224  are formed in regions of the carrier tape  222  facing the recessed portion  202  when the cover tape  223  is adhered to the carrier tape  222 . Thus, unevenness is formed on the lower surface of the cover tape  223 . The unevenness of the cover tape  223  is greater than unevenness formed on an upper surface of the LED package, i.e., an upper surface of a transparent resin body. 
     According to this embodiment, the unevenness is formed not only on the side surfaces of the recessed portion  202  of the carrier tape  222  but also on the lower surface of the cover tape  223 . Thus, the upper surface of the LED package is prevented from adhering to the lower surface of the cover tape  223 . Configuration, use method, effects and advantages, other than the above, of this embodiment are the same as those of the above-described seventh embodiment. 
     Note that, in the above-described seventh to tenth embodiments, examples have been shown that two projected portions are formed at each side surface of the recessed portion  202 . However, the invention is not limited thereto. The number of projected portions at each side surface may be 1, 3, or larger. Moreover, the projected portions do not always have to be arranged in the direction parallel to the surface of the packing member. The arrangement of the projected portions may be shifted in a depth direction of the recessed portion  202 . Furthermore, in the above-described seventh to tenth embodiments, examples have been shown that unevenness is formed by forming the projected portions at the side surfaces of the recessed portion. However, the invention is not limited thereto. For example, the unevenness may be formed by forming dents in the side surfaces, or such unevenness may be formed by curving the side surfaces. In this manner also, the contact area between the side surfaces of the recessed portion and the side surfaces of the LED package is reduced, and the adhesion is prevented. Still furthermore, in the above-described seventh to tenth embodiments, examples have been shown that the unevenness is formed on all the side surfaces of the recessed portion  202 . However, the invention is not limited thereto. A certain level of the effect is obtained by forming the unevenness at least on one side surface. Still furthermore, the shape of the packing member for an LED package according to the invention is not limited to a belt-like shape, and may be, for example, a sheet-like shape in which recessed portions are arranged in a matrix pattern. 
     According to the above-described seventh to tenth embodiments, a packing member for the LED package easy to handle is provided. 
     While certain embodiments have been described, these embodiments have been presented by way of example only, and are not intended to limit the scope of the inventions. Indeed, the novel embodiments described herein may be embodied in a variety of other forms; furthermore, various omissions, substitutions and changes in the form of the embodiments described herein may be made without departing from the spirit of the inventions. The accompanying claims and their equivalents are intended to cover such forms or modifications as would fall within the scope and spirit of the invention.