Patent Publication Number: US-2021193860-A1

Title: Optoelectronic semiconductor device with first and second optoelectronic elements

Description:
CROSS-REFERENCE TO RELATED APPLICATIONS 
     The present application is a national stage entry according to 35 U.S.C. § 371 of PCT application No.: PCT/EP2019/069812 filed on Jul. 23, 2019; which claims priority to German Patent Application Serial No.: 10 2018 117 907.3 filed on Jul. 24, 2018, as well as claims priority to German Patent Application Serial No.: 10 2018 124 040.6 filed on Sep. 28, 2018; all of which are incorporated herein by reference in their entirety and for all purposes. 
    
    
     TECHNICAL FIELD 
     The present disclosure relates to optoelectronic semiconductor devices having a first resonator mirror and a second resonator mirror. 
     BACKGROUND 
     Mobile consumer electronics devices often contain laser light sources. For example, these are implemented as surface-emitting lasers, i.e. lasers in which the generated laser light is emitted via a surface of a semiconductor layer arrangement. 
     SUMMARY 
     An optoelectronic semiconductor device includes a first array of first optoelectronic components and a second array of second optoelectronic components which are arranged in a substrate. The first optoelectronic components each include a first resonator mirror with a first main surface, an active area suitable for generating radiation, and a second resonator mirror, each of which is arranged one above the other along a first direction, wherein radiation emitted by the optoelectronic component is emitted via the first main surface. The first optoelectronic components are suitable for emitting electromagnetic radiation. The second optoelectronic components each comprise an active area suitable for generating radiation and are suitable for absorbing electromagnetic radiation. 
     For example, the first optoelectronic components form surface-emitting laser diodes. The active area of each of the first optoelectronic components may be identical to the active area of each of the second optoelectronic components. 
     For example, the first array has a larger surface than the second array. The second array may be arranged in a central area within the first array. Alternatively, the second array may also be arranged in an edge area of the first array. 
     The optoelectronic semiconductor device may further include an optical element which is arranged above the first and above the second arrays of first and second optoelectronic components. For example, the optical element may be an array of microlenses. According to embodiments, the optical element may contain additional deflection elements which are suitable for directing incident radiation onto a predetermined area of the second array. 
     The optical element may directly adjoin the surface of the optoelectronic components. 
     For example, the second optoelectronic components may be suitable for detecting electromagnetic radiation emitted by the first optoelectronic components. 
     For example, the first optoelectronic components may each be electrically connected to one another via at least a portion of the common substrate. According to embodiments, the second optoelectronic components may each be electrically connected to one another via at least a portion of the common substrate. 
     The optoelectronic semiconductor device may further comprise an insulating element that insulates the first array from the second array. 
     The first and second optoelectronic components may each contain a first contact area and a second contact area, via which the active area may be electrically contacted in each case. 
     The first and second optoelectronic components may each contain a first contact area and also a second contact area, via which the active area may be electrically contacted in each case. 
     For example, the first contact areas of the first and second optoelectronic components and a common contact area may be arranged in the area of a light emission surface of the optoelectronic semiconductor device. The common contact area may, for example, be connected to the common conductive substrate via a via contact. 
     According to embodiments, an optoelectronic semiconductor device comprises an array of optoelectronic components, each of which has an identical layer structure. At least a portion of the optoelectronic components is suitable for acting as a surface-emitting diode laser, and at least another portion of the optoelectronic components is suitable for acting as a device which absorbs electromagnetic radiation. 
     According to further embodiments, a mobile device or an optical device contains the optoelectronic semiconductor device as described above. 
     The mobile device may be selected from a smartphone, a laptop, a tablet or a phablet. 
     The optical device may be selected from a distance measuring device, a 2D and/or 3D sensor or 2D and/or 3D scanner, an illumination device, a proximity sensor, a spectrometer or a reflective light barrier. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
       The accompanying drawings serve to provide an understanding of non-limiting embodiments. The drawings illustrate non-limiting embodiments and, together with the description, serve to explain them. Further non-limiting embodiments and numerous intended advantages emerge directly from the following detailed description. The elements and structures shown in the drawings are not necessarily shown true to scale. Identical reference numerals refer to identical or corresponding elements and structures. 
         FIG. 1  shows a schematic illustration of an optoelectronic semiconductor device according to embodiments. 
         FIG. 2A  shows a schematic cross-sectional view of part of a first optoelectronic component according to embodiments. 
         FIG. 2B  shows a schematic cross-sectional view of part of a second optoelectronic component according to further embodiments. 
         FIG. 2C  shows a transition area between the first and second optical elements according to embodiments. 
         FIG. 2D  shows a schematic cross-sectional view of an optoelectronic semiconductor device according to embodiments. 
         FIG. 2E  shows a schematic cross-sectional view of an optoelectronic semiconductor device according to further embodiments. 
         FIG. 3A  shows a schematic plan view of an optoelectronic semiconductor device according to embodiments. 
         FIG. 3B  shows a schematic plan view of an optoelectronic semiconductor device according to further embodiments. 
         FIG. 3C  shows a schematic plan view of an optoelectronic semiconductor device according to further embodiments. 
         FIG. 4A  shows a circuit diagram of the optoelectronic device according to embodiments. 
         FIG. 4B  shows a schematic plan view of a second main surface of an optoelectronic semiconductor device according to embodiments. 
         FIG. 4C  shows a circuit diagram of the optoelectronic device according to further embodiments. 
         FIG. 5A  shows a cross-sectional view of an optoelectronic semiconductor device according to further embodiments. 
         FIG. 5B  shows a cross-sectional view of an optoelectronic semiconductor device according to further embodiments. 
         FIG. 6A  shows a schematic view of a mobile device. 
         FIG. 6B  shows a schematic view of an optical device. 
     
    
    
     DETAILED DESCRIPTION 
     In the following detailed description, reference is made to the accompanying drawings, which form part of the disclosure, and in which specific exemplary embodiments are shown for purposes of illustration. In this context, directional terminology such as “top”, “bottom”, “front”, “back”, “over”, “on”, “in front of”, “behind”, “leading”, “trailing”, etc. refers to the orientation of the figures just described. Since the components of the exemplary embodiments may be positioned in different orientations, the directional terminology is only used for explanation and is not restrictive in any way. 
     The description of the exemplary embodiments is not restrictive, since also other exemplary embodiments exist and structural or logical changes may be made without deviating from the scope defined by the claims. In particular, elements of exemplary embodiments described in the following text may be combined with elements of other exemplary embodiments described, unless the context indicates otherwise. 
     The terms “wafer” and “semiconductor substrate” used in the following description may include any semiconductor-based structure that has a semiconductor surface. The wafer and structure are to be understood to include doped and undoped semiconductors, epitaxial semiconductor layers, possibly supported by a base, and further semiconductor structures. For example, a layer made of a first semiconductor material may be grown on a growth substrate made of a second semiconductor material or of an insulating material, for example, on a sapphire substrate. Depending on the intended use, the semiconductor may be based on a direct or an indirect semiconductor material. Examples of semiconductor materials particularly suited for generating electromagnetic radiation include, in particular, nitride semiconductor compounds which may, for example, generate ultraviolet, blue or longer-wave light such as GaN, InGaN, AlN, AlGaN, AlGalnN, phosphide semiconductor compounds, which may, for example, generate green or longer-wave light such as GaAsP, AlGalnP, GaP, AlGaP, as well as other semiconductor materials such as AlGaAs, SiC, ZnSe, GaAs, ZnO, Ga 2 O 3 , diamond, hexagonal BN, and combinations of the materials mentioned. The stoichiometric ratio of the ternary compounds may vary. Further examples of semiconductor materials may include silicon, silicon germanium, and germanium. In the context of the present description, the term “semiconductor” also includes organic semiconductor materials. 
     The terms “lateral” and “horizontal”, as used in this description, are intended to describe an orientation or alignment which runs essentially parallel to a first surface of a substrate or semiconductor body. This may, for example, be the surface of a wafer or a chip (die). 
     The horizontal direction may, for example, lie in a plane perpendicular to a direction of growth when layers are grown on. 
     The term “vertical”, as used in this description, is intended to describe an orientation which is essentially perpendicular to the first surface of a substrate or semiconductor body. The vertical direction may, for example, correspond to a direction of growth when layers are grown on. 
     To the extent that the terms “have”, “contain”, “comprise”, “include” and the like are used herein, they are open-ended terms that indicate the presence of said elements or features, but do not rule out the presence of other elements or features. The indefinite articles and the definite articles include both the plural and the singular, unless the context clearly indicates otherwise. 
     In the context of this description, the term “electrically connected” means a low-ohmic electrical connection between the connected elements. The electrically connected elements need not necessarily be directly connected to one another. Additional elements may be arranged between electrically connected elements. 
       FIG. 1  shows an example of an optoelectronic semiconductor device  10  comprising a first array  140  of first optoelectronic components  15  and a second array  150  of second optoelectronic components  16 . The first optoelectronic components  15  and the second optoelectronic components  16  are arranged in a common substrate  100 . The common substrate  100  may, for example, be a monocrystalline semiconductor substrate on which semiconductor layers may be grown epitaxially. The exact structure of the particular optoelectronic components and of the substrate  100  is described below with reference to  FIG. 2A . The first optoelectronic components  15  may, for example, be designed as surface-emitting laser diodes (VCSEL, “vertical-cavity surface-emitting laser”). The second optoelectronic components  16  may, for example, have a similar or identical layer structure to the first optoelectronic components  15 . They may be interconnected in such a manner that they act as detectors. For example, the second optoelectronic components  16  may absorb the electromagnetic radiation  20  emitted by the first optoelectronic components  15 , which radiation has, for example, been reflected by a reflective component. The substrate  100  may represent a common electrode of the first and second optoelectronic components  15 ,  16  in each case or may be connected to this common electrode. For example, a substrate area within the first array  140  may be insulated from a substrate area within the second array  150  by insulating elements  107 . For example, such insulating elements  107  may be trenches which are filled with insulating, conductive or suitably doped semiconductor material. Depending on the interconnection of the optoelectronic components, the trenches may extend to different depths. For example, they may extend so deep that adjacent substrate areas may be isolated from one another. According to further embodiments, they may each extend into the substrate as deep as the individual optoelectronic components, as indicated for example in  FIG. 5A . For example, both the first optoelectronic components  15  and the second optoelectronic components  16  may each be suitable for emitting or detecting electromagnetic radiation. 
     The substrate  100  may be applied to a suitable carrier  105 . The carrier  105  may, for example, be part of a housing of a mobile device  30 , an optical device  35  or a leadframe. The optoelectronic device  10  may further have an optical element  200 . For example, the optical element  200  may be an array of microlenses  205 . For example, the optical element  200  may be arranged above the first and above the second arrays  140 ,  150  of optoelectronic components. For example, the optical element  200  may completely cover both the first and the second arrays  140 ,  150  laterally along their direction of extension or overlap with them. For example, as illustrated in  FIG. 1 , radiation  20  emitted by the first optoelectronic components  15  may be reflected by the microlenses  205 . The reflected radiation  25  is absorbed by the second optoelectronic components  16 . An air gap may be arranged between the surface of the optoelectronic components  15 ,  16  and the optical element  200 . According to further embodiments, an optically transparent material such as silicone or glass may be arranged between the surface of the optoelectronic components  15 ,  16  and the optical element  200 . For example, the optical element  200  may be provided in order to reflect a portion of the radiation  20  emitted by the first optoelectronic components  15 . For example, the radiation is reflected in the direction of the second optoelectronic components  16 . These may absorb the reflected radiation  25  and determine based on a detected photocurrent whether, for example, the optical element  200  is properly attached to the mobile device. 
       FIG. 2A  shows a cross-sectional view of part of a first optoelectronic component according to embodiments. A first resonator mirror  120 , an active area  125  suitable for generating radiation, and a second resonator mirror  110  are arranged over a first main surface  101  of a substrate. The first and second resonator mirrors  120 ,  110  may each have alternately stacked first layers of a first composition and second layers of a second composition. For example, the layers may alternately have a high refractive index (n&gt;1.7) and a low refractive index (n&lt;1.7) and be designed as a Bragg reflector. For example, the layer thickness may be λ/4 or a multiple of λ/4, where λ indicates the wavelength of the light to be reflected. The first or second resonator mirror  120 ,  110  may, for example, have 2 to 50 different layers. A typical layer thickness of the individual layers may be around 30 to 90 nm, for example, around 50 nm. The layer stack may further contain one or two or more layers which are thicker than around 180 nm, for example, thicker than 200 nm. For example, the second resonator mirror  110  may have a total reflectivity of 99.8% or more for the laser radiation. 
     For example, the active area  125  may have an active layer  126  provided for generating radiation. The active layer  126  of the active area  125  may, for example, have a pn junction, a double heterostructure, a single quantum well (SQW) structure or a multi quantum well (MQW) structure for generating radiation. In this process, the term “quantum well structure” has no meaning with regard to the dimensionality of the quantization. Thus, it includes, among other things, quantum wells, quantum wires and quantum dots, as well as any combination of these layers. For example, the active area  125  may be based on a nitride, a phosphide or an arsenide compound semiconductor. For example, the substrate  100  may contain GaN, GaP or GaAs, and the active area  125  may, in each case, contain semiconductor materials which contain GaN, GaP or GaAs. Cladding layers, for example, made of n- or p-doped semiconductor layers, may adjoin the active layer  126 . Overall, the layer thickness of the active area  125  is overall at least equal to the effective emitted wavelength (λ/n, where n corresponds to the refractive index of the active area), so that standing waves may form within the resonator. For example, a layer thickness of the active layer  126  is several 10&#39;s nm, and the layer thickness of the cladding layers may each be around 10 to 20 nm. 
     The second resonator mirror  110  is arranged between the active area  125  and the substrate  100 . The first resonator mirror  120  and the second resonator mirror  110  form an optical resonator for the electromagnetic radiation  20  generated in the active area  125 . For example, the first resonator mirror  120  and the second resonator mirror  110  are integrated together with the active area  125  in the semiconductor body  109  of the optoelectronic semiconductor device  10 . The first resonator mirror  120  is designed as a decoupling mirror for the laser radiation generated in the resonator by means of induced emission and has, for example, a lower reflectivity than the second resonator mirror  110 . Electromagnetic radiation  20  generated in the active area  125  is emitted in the vertical direction from the optoelectronic component. For example, the second resonator mirror  110  has a plurality of semiconductor layer pairs with, for example, each having a high difference in refractive index. The layers of the first resonator mirror  120  and the layers of the second resonator mirror  110  may, for example, be produced epitaxially. According to further embodiments, the first and/or the second resonator mirror may be constructed from dielectric layers. 
     For example, a second contact element  130  may be arranged adjacent to a second main surface  102  of the substrate. The second contact element  130  may be electrically connected to a second contact area  132  and to the second resonator mirror  110 . Furthermore, a first contact element  135  may be arranged adjacent to a first main surface  121  of the first resonator mirror  120  and electrically connected to it. The first contact element  135  may, for example, be connected to a first contact area  137  of the first optoelectronic component. The first and second contact elements  130 ,  135  may, for example, contain an electrically conductive material. If the resonator mirrors are made of dielectric material, then the first contact element  135  and the second contact element  130  may each be electrically connected to the active area  125 . For example, the first contact element  135  may be connected to the first cladding layer, for example, of the first conductivity type, of the active area  125 . The second contact element  130  may be connected to the second cladding layer, for example, of the second conductivity type, of the active area  125 . 
     The first optoelectronic component  15  represents a semiconductor laser that is electrically pumped, for example, via the first contact element  135  and the second contact element  130 . 
     For example, the first contact element  135  may be recessed over a central area of the first optoelectronic component. For example, the first contact element  135  may run like a ring over an edge area of the first optoelectronic component. In this way, absorption of the emitted laser radiation in the first contact element  135  may be avoided or reduced. 
     According to embodiments, the layers of the first resonator mirror  120  may be doped with dopants of a first conductivity type, for example, p- or n-type. For example, the layers of the second resonator mirror  110  may be doped with a second conductivity type, for example, n-type or p-type. According to further embodiments, only selected layers of the layer sequence of the resonator mirrors  110 ,  120  may be doped accordingly. The substrate  100  may be doped, for example, with dopants of the second conductivity type. 
       FIG. 2B  shows a schematic cross-sectional view of an example of a second optoelectronic component  16 . According to embodiments, the second optoelectronic component  16  may have the same layer structure as the first optoelectronic component  15 . 
     According to further embodiments, certain areas may be designed differently. For example, the first and second resonator mirrors may be omitted, and the second optoelectronic component  16  only has the active area  125 . For example, the active area  125  of the second optoelectronic component  16  may be formed identically to the active area  125  of the first optoelectronic component  15 . 
     The second optoelectronic component  16  is suitable for absorbing electromagnetic radiation  25 . For example, this may be achieved in that the first contact element  135  and the second contact element  130  are connected to potentials in a suitable manner, that the second optoelectronic component  16  is operated in the reverse direction. The first contact element  135  is connected to a first contact area  138 . The second contact element  130  is connected to a second contact area  133  of the second optoelectronic component. For example, the first contact area  137  of the first optoelectronic component may be connected to the second contact area  133  of the second optoelectronic component. According to further embodiments, the second contact area  132  of the first optoelectronic component  15  may also be connected to the first contact area  133  of the second optoelectronic component  16 . Furthermore, it is conceivable that the first contact area  137  of the first optoelectronic component is connected to the first contact area  138  of the second optoelectronic component. In addition, the second contact area  132  of the first optoelectronic semiconductor component may be connected to the second contact area  133  of the second optoelectronic semiconductor component. 
       FIG. 2C  shows a connection area between a first optoelectronic component  15  and a second optoelectronic component  16  according to embodiments. For example, an insulating layer  127  and a conductive material  129  may be introduced between the second resonator mirror  110  and the substrate  100  in the area of the first optoelectronic component  15 . In this way, the layer stack with the second resonator mirror is electrically connected to the conductive material  129 . The conductive material  129  is, as further illustrated in  FIG. 2C , guided onto the surface of the layer stack or semiconductor body  109  and electrically connected to the first contact element  135  of the second optoelectronic component  16 . In this way, the second contact area  132  of the first optoelectronic component  15  may, for example, be connected to the first contact area  138  of the second optoelectronic component  16 . As is to be clearly understood, the first and second optoelectronic components are also interchangeable. In this way, it is possible to connect the second contact area  133  of the second optoelectronic component to the first contact area  137  of the first optoelectronic component  15 . 
       FIG. 2D  shows a cross-sectional view of an optoelectronic semiconductor device  10  according to further embodiments. According to these embodiments, the optoelectronic semiconductor device  10  may be designed as a flip-chip component. The optoelectronic semiconductor device  10  includes a first optoelectronic component  15  and a second optoelectronic component  16 , which are formed on a common substrate  100 . The first and second optoelectronic components are each formed similarly to the components shown in  FIGS. 2A and 2B . However, the second contact element  130  is connected, via a via contact  113 , to a common contact area  134 , which is arranged in the area of a light emission surface  106  of the optoelectronic semiconductor device  10 . In this way, the optoelectronic semiconductor device  10  is exclusively arranged, via contact areas  134 ,  137 ,  138 , in the area of the light emission surface  106  of the optoelectronic semiconductor device  10 . The generated electromagnetic radiation is emitted via the light emission surface  106 . For example, the via contact  113  extends from the common substrate  100  to a light emission surface  106  of the optoelectronic semiconductor device  10 . 
     The optoelectronic components comprise a first and second cladding layers  114 ,  115 . An active layer  126 , which may, for example, contain a multi quantum well structure is arranged between the first and second cladding layers. The active area  125  may, in addition, have a third cladding layer  116  and an opening (aperture)  117  in each case. The insulating elements  107  may further be isolated from the active area by an insulating material  104  which, for example, contains silicon oxide. The common substrate  100  may be conductive or coated with a conductive material. The active area  125  may, in each case, be connected to the associated contact areas  137 ,  138  of the first or second optoelectronic component via first contact elements  135 . The active area  125  may further be connected to the second contact element  130  via a contact layer  131 . 
       FIG. 2E  shows the optoelectronic semiconductor device  10  shown in  FIG. 2D  by way of example, which is mounted on a suitable carrier  105 , for example, a circuit board or a housing. Radiation  20  emitted by the first optoelectronic component  15  may be reflected by the optical element  200  and absorbed or received by the second optoelectronic component. For example, conductor tracks may be provided in the carrier  105  so that a corresponding voltage may be applied to the contact areas of the first and second optoelectronic components. 
     According to an alternative interpretation, an optoelectronic semiconductor device  10  comprises an array of optoelectronic components  15 ,  16 , each of which has an identical layer structure. At least a portion of the optoelectronic components  15  is suitable for acting as a surface-emitting diode laser, and at least another portion of the optoelectronic components  16  is suitable for acting as a device which absorbs electromagnetic radiation. 
       FIG. 3A  shows a plan view of an optoelectronic semiconductor device according to embodiments. As can be seen, the optoelectronic semiconductor device has a first array  140  of first optoelectronic components  15 . A second array  150  of second optoelectronic components  16  is arranged in the central area of the array. The second array  150  is spatially separated by insulating elements  107 , so that, for example, the first contact element  135  of the first optoelectronic component  15  is isolated from the first contact element  135  of the second optoelectronic component  16  in each case. For example, the first contact elements  135  of the second optoelectronic component  16  may be connected to a first contact area  138  which is arranged at the edge of the optoelectronic device. As further illustrated in  FIG. 3A , the second array  150  has a significantly smaller surface than the first array  140 . For example, the second array  150  may comprise less than 20, for example, less than 10, second optoelectronic components  16 . A large portion of the first array  140  may, for example, be used as a light source for applications, while the small area  150  is used as a photodetector. 
     If the electromagnetic radiation emitted by the first optoelectronic components  15  is reflected by the optical element  200 , which is shown in  FIG. 1 , a photocurrent may be generated in the second optoelectronic components. This photocurrent may be used to check that the optical element  200  is still properly attached. According to further embodiments, the optoelectronic device may also be operated in a pulsed mode using a time-division multiplex method. In this case, light may briefly be emitted through the first area  140 , and the second array may be switched as a photodiode in the other time sections. In this case, for example, the second array may have a larger surface than the first array. 
       FIG. 3B  shows a further possible design of the optoelectronic semiconductor device  10 . Unlike as shown in  FIG. 3A , the second array  150  is here arranged in an edge area. Correspondingly, the second array  150  may, for example, only adjoin the first array  140  on one or two sides. According to the arrangement shown in  FIG. 3A , the second area  150  may, for example, almost completely be surrounded by the first array  140 . 
       FIG. 3C  shows a schematic illustration in which the second array  150  adjoins the first array  140  on two sides. 
       FIG. 4A  shows a circuit diagram of the optoelectronic device according to embodiments. As can be seen, the second contact area  132  of the first optoelectronic component  15  is short-circuited to the first contact area  138  of the second optoelectronic component  16 . Furthermore, the first optoelectronic component  15  is operated in the forward direction, while the second optoelectronic component  16  is connected upstream in the reverse direction. 
       FIG. 4B  shows a schematic plan view of a second main surface  102  of the substrate  100 . As can be seen, the second contact area  132  of the first optoelectronic component  15  and the first contact area  138  of the second optoelectronic component  16  are connected to one another by a common electrode. The first contact area  137  of the first optoelectronic component is isolated from this common connection. Furthermore, the second contact area  133  of the second optoelectronic component  16  is isolated from the common connection. A photocurrent generated in the second optoelectronic component  16  may, as is further illustrated in  FIG. 4B , also be measured by the measuring device  155  in order to determine whether the optical element  200  is attached as intended and reflects light. As soon as it is detected that the photocurrent falls below a prescribed threshold, the optoelectronic device  10  may be switched off by the control device  160 . The level of the detected photocurrent may, for example, depend on the size of the second array  150 , that is to say, for example, on the number of second optoelectronic components  16  within the second array  150 . 
       FIG. 4C  shows a circuit diagram of the optoelectronic device according to further embodiments. As can be seen, the second contact area  132  of the first optoelectronic component  15  is short-circuited to the second contact area  133  of the second optoelectronic component  16 . Furthermore, the first optoelectronic component  15  is operated in the forward direction, while the second optoelectronic component  16  is connected upstream in the reverse direction. 
       FIG. 5A  shows an optoelectronic device  10  in which the optical element  200  directly adjoins the array of first and second optoelectronic components. For example, the optical element  200  may directly adjoin the first contact element  135 . For example, concave areas of the array of microlenses  205  may be arranged on the side of the optical element facing away from the substrate  100 . In this case, the electromagnetic radiation emitted by the first optoelectronic components is reflected on the first main surface  201  of the optical element  200 . The other elements of  FIG. 5A  are as described with reference to  FIG. 1 . According to  FIG. 5A , the isolation trenches may only extend upwards to an extension depth of the optoelectronic components. The arrangement shown in  FIG. 5A  is particularly compact. 
     According to embodiments shown in  FIG. 5B , the optoelectronic device  10  may further include a deflection element  207 , which may be built into the optical element  200 . For example, a plurality of deflection elements  207  may be built or integrated into the optical element  200 . These deflection elements may, for example, have two totally reflective surfaces inclined to one another. These may be arranged in such a manner that light beams from parts of the first array  140  consisting of first optoelectronic components  15  are purposefully guided onto the second array  150  of second optoelectronic components  16 . In this way, the photocurrent may be increased or the size of the second array  150  may be reduced while the photocurrent remains approximately the same. 
     The described arrangement makes the size of the optoelectronic semiconductor device more compact. An optoelectronic semiconductor device is described in which it is possible to emit electromagnetic radiation and, for example, measure light reflected by the optical element, and which may be constructed in a particularly compact design. Furthermore, the wiring of the corresponding connections may be implemented in a simple manner without special wiring elements. Furthermore, first and second optoelectronic components may be produced by common manufacturing processes, which makes the device inexpensive. 
       FIG. 6A  shows a mobile device  30  with the optoelectronic device  10  described. The mobile device  30  may, for example, be a notebook, a smartphone, a tablet or another device that, for example, is suitable for mobile communication. For example, the laser light source of the first array  140  comprising the first optoelectronic components  15  may be used for applications of the mobile device  30  such as distance measurement and others. 
       FIG. 6B  shows an optical device  35  with the optoelectronic device  10  according to embodiments. For example, the laser light source of the first array  140  with first optoelectronic components  15  may perform numerous functions of the optical device  35 . Examples include distance measurement, 2D and/or 3D sensing/scanning, lighting, proximity sensors, spectrometry, retro-reflective photoelectric sensors and others. The optical device may be part of a larger component, for example, for automotive applications, smart home applications, industrial applications and others. 
     In general, there is a risk with devices of this type that the optical element  200  shown, for example, in  FIGS. 1, 5A and 5B  will become detached and that the laser radiation may directly damage the user. Detachment of the optical element  200  may be monitored by the optoelectronic device described without the need to increase the size of the mobile device  30  or of the optical device or provide complex wiring. As a result, eye safety may be increased in a mobile device. 
     Although specific embodiments have been illustrated and described herein, persons skilled in the art will recognize that the specific embodiments shown and described may be replaced by a multitude of alternative and/or equivalent embodiments without departing from the scope of the invention. The application is intended to cover any adaptations or variations of the specific embodiments discussed herein. Therefore, the invention is to be limited only by the claims and their equivalents. 
     LIST OF REFERENCES 
     
         
           10  optoelectronic semiconductor device 
           15  first optoelectronic component 
           16  second optoelectronic component 
           20  emitted radiation 
           25  radiation to be absorbed 
           30  mobile device 
           35  optical device 
           100  substrate 
           101  first main surface of the substrate 
           102  second main surface of the substrate 
           104  insulating material 
           105  carrier 
           106  light emission surface 
           107  insulating element 
           109  semiconductor body 
           110  second resonator mirror 
           113  via contact 
           114  first cladding layer 
           115  second cladding layer 
           116  third cladding layer 
           117  opening 
           120  first resonator mirror 
           121  first main surface of the first resonator mirror 
           125  active area 
           126  active layer 
           127  insulating layer 
           128  sidewall insulation 
           129  conductive layer 
           130  second contact element 
           131  contact layer 
           132  second contact area of the first optoelectronic component 
           133  second contact area of the second optoelectronic component 
           134  common contact area 
           135  first contact element 
           137  first contact area of the first optoelectronic component 
           138  first contact area of the second optoelectronic component 
           140  first array 
           150  second array 
           155  measuring device 
           160  control device 
           200  optical element 
           201  first main surface of the optical element 
           205  microlens 
           207  deflection element