Abstract: In an embodiment a radiation-emitting semiconductor chip includes a semiconductor body having an active region configured to generate radiation, a first contact layer having a first contact area and a first contact finger structure connected to the first contact area, a second contact layer having a second contact area and a second contact finger structure connected to the second contact area, a current distribution layer electrically conductively connected to the first contact layer, a connection layer electrically conductively connected to the first contact layer via the current distribution layer and an insulation layer, wherein the insulation layer is arranged in places between the connection layer and the current distribution layer, wherein the insulation layer has at a plurality of openings, in which the connection layer and the current distribution layer adjoin one another, and wherein edge regions of the insulation layer includes more openings than a central region of the insulation layer.

Abstract: An optoelectronic semiconductor component comprises a first semiconductor layer of a first conductivity type having a first main surface and a second semiconductor layer of a second conductivity type arranged on a side facing away from the first main surface of the first semiconductor layer. The optoelectronic semiconductor component further comprises, on the side of the first main surface, a first current spreading structure electrically connected to the first semiconductor layer and a second current spreading structure electrically connected to the second semiconductor layer. The optoelectronic semiconductor component furthermore includes a dielectric mirror layer arranged on the side of the first main surface of the first semiconductor layer and on a side of the first or second current spreading structure facing away from the first semiconductor layer. At least one of the first and second current spreading structures contains silver.

Abstract: This disclosure describes a multi-junction laser diode with improved wavelength stability. The multi-junction laser diode is found in an edge emitting laser (EEL). The disclosed system and method are suited for improving the wavelength stability of multi-junction EEL without coupling the laser modes of the individual junctions and without using any external elements such as Fiber Bragg Gratings (FBR), Volume Bragg Gratings (VBG) or Thermoelectric Cooling (TEC).

Abstract: An optoelectronic semiconductor device may include a first semiconductor layer and a second semiconductor layer, the first and second semiconductor layers being stacked one above the other. The device may include a first contact structure and a contact layer. The device may include a separating layer arranged over a side of the contact layer, and a current spreading layer arranged over a side of the separating layer facing away from the contact layer. The first contact structure may be connected to the contact layer via the current spreading layer and the separating layer. A layer stack may include the contact layer, the separating layer, and the current spreading layer has an anisotropic conductivity. The separating layer is present as a continuous layer in a region between the contact layer and the current spreading layer.

Abstract: In an embodiment a radiation-emitting semiconductor chip includes a semiconductor body having an active region configured to generate radiation, a first contact layer having a first contact area and a first contact finger structure connected to the first contact area, a second contact layer having a second contact area and a second contact finger structure connected to the second contact area, a current distribution layer electrically conductively connected to the first contact layer, a connection layer electrically conductively connected to the first contact layer via the current distribution layer and an insulation layer, wherein the insulation layer is arranged in places between the connection layer and the current distribution layer, wherein the insulation layer has at a plurality of openings, in which the connection layer and the current distribution layer adjoin one another, and wherein edge regions of the insulation layer includes more openings than a central region of the insulation layer.

Abstract: A semiconductor component may include a first compressive strain layer on top of a semiconductor body. A material for the first compressive strain layer may include Ta, Mo, Nb, compounds thereof, and combinations thereof.

Abstract: In an embodiment a radiation-emitting semiconductor chip includes a semiconductor body having an active region configured to generate radiation, a first contact layer having a first contact area for external electrical contacting the radiation-emitting semiconductor chip and a first contact finger structure connected to the first contact area, a second contact layer having a second contact area for external electrical contacting the radiation-emitting semiconductor chip and a second contact finger structure connected to the second contact area, wherein the first contact finger structure and the second contact finger structure overlap in places in plan view of the radiation-emitting semiconductor chip, a current distribution layer electrically conductively connected to the first contact layer, a connection layer electrically conductively connected to the first contact layer via the current distribution layer and an insulation layer containing a dielectric material, wherein the insulation layer is arranged in p

Abstract: A radiation-emitting semiconductor chip includes a semiconductor body; a first contact layer having a first contact surface for external electrical contacting of the semiconductor chip and a first contact web structure connected to the first contact surface, wherein the first contact web structure is a region of the first contact layer that, compared to the first contact surface, has a comparatively small extent at least in a lateral direction; a second contact layer, wherein first and second contact web structures overlap in places in plan view of the semiconductor chip; a current distribution layer; and an insulation layer having a plurality of openings into which the current distribution layer extends.

Abstract: An optoelectronic semiconductor device may include a first semiconductor layer of a first conductivity type and a second semiconductor layer of a second conductivity type. The first and second semiconductor layers may be part of a semiconductor layer stack. The optoelectronic semiconductor device may include an electrically conductive layer arranged over a surface of the first semiconductor layer facing away from the second semiconductor layer. The electrically conductive layer may be directly adjacent to first regions of the first semiconductor layer. The electrically conductive layer may be removed from second regions of the first semiconductor layer, or a dielectric material may be arranged between second regions of the first semiconductor layer and the current spreading layer. The smallest horizontal dimension of the second regions may be less than 2 ?m.

Abstract: An optoelectronic semiconductor device may include a first semiconductor layer and a second semiconductor layer, the first and second semiconductor layers being stacked one above the other. The device may include a first contact structure and a contact layer. The device may include a separating layer arranged over a side of the contact layer, and a current spreading layer arranged over a side of the separating layer facing away from the contact layer. The first contact structure may be connected to the contact layer via the current spreading layer and the separating layer. A layer stack may include the contact layer, the separating layer, and the current spreading layer has an anisotropic conductivity. The separating layer is present as a continuous layer in a region between the contact layer and the current spreading layer.

Abstract: An optoelectronic semiconductor device may include a first and second semiconductor layer having a first and second conductivity type, respectively, a first contact structure, a contact layer, and a separating layer. Contact holes are arranged in the separating layer. The optoelectronic semiconductor device may include portions of a conductive layer arranged over a side of the separating layer facing away from the contact layer. The portions of the conductive layer are each connected to a conducting material in the contact holes. The first contact structure is connected to the contact layer via the portions of the conductive layer and the conducting material. A length of each of the portions is greater than a greatest width of the portions. The length denotes a shortest distance between an associated contact hole and a conductive material between adjacent portions, and the width is measured perpendicular to the length.

Abstract: In an embodiment a radiation-emitting semiconductor chip includes a semiconductor body having an active region configured to generate radiation, a first contact layer having a first contact area for external electrical contacting the radiation-emitting semiconductor chip and a first contact finger structure connected to the first contact area, a second contact layer having a second contact area for external electrical contacting the radiation-emitting semiconductor chip and a second contact finger structure connected to the second contact area, wherein the first contact finger structure and the second contact finger structure overlap in places in plan view of the radiation-emitting semiconductor chip, a current distribution layer electrically conductively connected to the first contact layer, a connection layer electrically conductively connected to the first contact layer via the current distribution layer and an insulation layer containing a dielectric material, wherein the insulation layer is arranged in p

Abstract: A radiation-emitting semiconductor chip is disclosed. In an embodiment, a radiation-emitting semiconductor chip includes a semiconductor body configured to generate radiation, a first contact layer having a first contact area for external electrical contacting the semiconductor chip and a first contact finger structure connected to the first contact area, a second contact layer having a second contact area for external electrical contacting the semiconductor chip and a second contact finger structure connected to the second contact area, wherein the first contact finger structure and the second contact finger structure overlap in places, a current distribution layer electrically conductively connected to the first contact layer, a connection layer electrically conductively connected to the first contact layer via the current distribution layer and an insulation layer arranged in places between the connection layer and the current distribution layer, wherein the insulation layer has at least one opening.

Abstract: An optoelectronic semiconductor component comprises a first semiconductor layer of a first conductivity type having a first main surface and a second semiconductor layer of a second conductivity type arranged on a side facing away from the first main surface of the first semiconductor layer. The optoelectronic semiconductor component further comprises, on the side of the first main surface, a first current spreading structure electrically connected to the first semiconductor layer and a second current spreading structure electrically connected to the second semiconductor layer. The optoelectronic semiconductor component furthermore includes a dielectric mirror layer arranged on the side of the first main surface of the first semiconductor layer and on a side of the first or second current spreading structure facing away from the first semiconductor layer. At least one of the first and second current spreading structures contains silver.

Abstract: An optoelectronic semiconductor device and a method for producing an optoelectronic semiconductor device are disclosed. In an embodiment an optoelectronic semiconductor device includes a semiconductor body having a first region of a first conductivity type, an active region configured to generate electromagnetic radiation and a second region of a second conductivity type in a stacking direction, an electrical contact metallization arranged on a side of the second region facing away from the active region and being opaque to the electromagnetic radiation, a radiation coupling-out region surrounding the electrical contact metallization at an edge side and an absorber layer structure arranged between the electrical contact metallization and the second region.

Abstract: A semiconductor component may include a first compressive strain layer on top of a semiconductor body. A material for the first compressive strain layer may include Ta, Mo, Nb, compounds thereof, and combinations thereof.

Abstract: An optoelectronic semiconductor device and a method for producing an optoelectronic semiconductor device are disclosed. In an embodiment an optoelectronic semiconductor device includes a semiconductor body having a first region of a first conductivity type, an active region configured to generate electromagnetic radiation and a second region of a second conductivity type in a stacking direction, an electrical contact metallization arranged on a side of the second region facing away from the active region and being opaque to the electromagnetic radiation, a radiation coupling-out region surrounding the electrical contact metallization at an edge side and an absorber layer structure arranged between the electrical contact metallization and the second region.

Abstract: An optoelectronic semiconductor chip and a method for manufacturing an optoelectronic semiconductor chip are disclosed. In an embodiment the semiconductor chip includes a semiconductor body having a main surface and at least one side surface arranged transversely to the main surface, a contact layer arranged on the main surface of the semiconductor body and containing an electrically conductive material, a filter layer arranged on the contact layer and containing a dielectric material and a conductive layer arranged on the filter layer and containing an electrically conductive material, wherein a thickness of the conductive layer is greater than a thickness of the contact layer, wherein the contact layer and the conductive layer comprise a transparent electrically conductive oxide, and wherein the filter layer is multi-layered and comprises at least two sublayers which differ in their refractive index.

Abstract: A method for producing a semiconductor body is disclosed. In an embodiment, the method includes providing a semiconductor body, applying a first mask layer and a second mask layer to the semiconductor body and forming at least one second mask opening in the second mask layer and at least one recess in the semiconductor body in a region of the at least one first mask opening in the first mask layer, wherein the recess comprises a side face and a bottom face and the recess forms an undercut with the second mask opening. The method further includes applying a passivation layer unpatterned to the second mask layer and to the side face and the bottom face of the at least one recess and removing the passivation layer so that the passivation layer remains at least in part on the side face of the at least one recess.

Abstract: A radiation-emitting semiconductor chip is disclosed. In an embodiment, a radiation-emitting semiconductor chip includes a semiconductor body configured to generate radiation, a first contact layer having a first contact area for external electrical contacting the semiconductor chip and a first contact finger structure connected to the first contact area, a second contact layer having a second contact area for external electrical contacting the semiconductor chip and a second contact finger structure connected to the second contact area, wherein the first contact finger structure and the second contact finger structure overlap in places, a current distribution layer electrically conductively connected to the first contact layer, a connection layer electrically conductively connected to the first contact layer via the current distribution layer and an insulation layer arranged in places between the connection layer and the current distribution layer, wherein the insulation layer has at least one opening.