Radiation emitting semiconductor device
First Claim
1. A radiation-emitting semiconductor device comprisinga multilayer structure that contains a radiation-emitting active layer, electrical contacts for impressing a current in the multilayer structure, and a window layer being transparent to radiation, which is disposed exclusively on the side of said multilayer structure facing away from a main direction of radiation of the semiconductor device, has at least one side wall comprising a first side wall portion which extends obliquely, concavely or in a stepwise manner with respect to a central axis of the semiconductor device lying perpendicular to the multilayer sequence, and which in its subsequent extension toward the back side, viewed from said multilayer structure, changes over into a second side wall portion that extends perpendicularly to said multilayer structure, that is, parallel to said central axis, and the portion of said window layer encompassing said second side wall portion forms a mounting pedestal for said semiconductor device.
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Accused Products
Abstract
A radiation-emitting semiconductor device with a multilayer structure comprising a radiation-emitting active layer, with electrical contacts for impressing a current in the multilayer structure and with a radiotransparent window layer. The window layer is arranged exclusively on the side of the multilayer structure facing away from a main direction of radiation of the semiconductor device and has at least one side wall that includes a first side wall portion which extends obliquely, concavely or in a stepwise manner toward a central axis of the semiconductor device lying perpendicular to the multilayer sequence. In its subsequent extension toward the back side, viewed from the multilayer structure, the side wall changes over into a second side wall portion that extends perpendicularly to the multilayer structure, that is, parallel to the central axis, and the portion of the window layer encompassing the second side wall portion forms a mounting pedestal for the semiconductor device. The first and second side wall portions are fabricated especially preferably by means of a saw blade having a shaped edge. In a preferred optical device, the semiconductor device is mounted window layer downward in a reflector cup.
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Citations
26 Claims
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1. A radiation-emitting semiconductor device comprising
a multilayer structure that contains a radiation-emitting active layer, electrical contacts for impressing a current in the multilayer structure, and a window layer being transparent to radiation, which is disposed exclusively on the side of said multilayer structure facing away from a main direction of radiation of the semiconductor device, has at least one side wall comprising a first side wall portion which extends obliquely, concavely or in a stepwise manner with respect to a central axis of the semiconductor device lying perpendicular to the multilayer sequence, and which in its subsequent extension toward the back side, viewed from said multilayer structure, changes over into a second side wall portion that extends perpendicularly to said multilayer structure, that is, parallel to said central axis, and the portion of said window layer encompassing said second side wall portion forms a mounting pedestal for said semiconductor device.
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14. A radiation-emitting semiconductor device comprising
a multilayer structure that contains a radiation-emitting active layer, electrical contacts for impressing a current in the multilayer structure, and a window layer being transparent to radiation, which is disposed exclusively on the side of said multilayer structure facing away from a main direction of radiation of the semiconductor device, has at least one side wall comprising a first side wall portion (20a) which extends obliquely, concavely or in a stepwise manner with respect to a central axis of the semiconductor device lying perpendicular to the multilayer sequence, and which in its subsequent extension toward the back side, viewed from said multilayer structure, changes over into a second side wall, and the portion of said window layer encompassing said second side wall portion forms a mounting pedestal for said semiconductor device.
Specification