Patent ID: 7929588
Filing Date: 2011-04-19
Classification: H01S

Abstract:
1. A light-emitting semiconductor device, comprising: an active region between an n-type distributed Bragg reflector and a p-type distributed Bragg reflector, the active region arranged to generate light in response to an injected charge introduced by a current flowing from an electrical contact coupled to the p-type distributed Bragg reflector; an oxide layer in contact with the p-type distributed Bragg reflector and opposed to the electrical contact, the oxide layer having an oxide layer aperture that directs the injected charge into the active region; and an implant layer arranged between the oxide layer and the active region, the implant layer formed by implanting ions of a non-semiconductor element into a semiconductor material to make the implant layer an electrical insulator, the implant layer having an implant layer aperture that directs the injected charge to a region of the device where charge carriers are combining to emit light, the implant layer aperture being between about 20% to 110% larger than the oxide layer aperture.