Patent ID: 7109535
Filing Date: 2006-09-19
Classification: H01L

Abstract:
1. A semiconductor device, comprising: a substrate; a photodiode formed in the substrate, the photodiode receiving photoelectrons in response to photons received by the semiconductor device; a trench isolation region formed in the substrate; and a junction isolation region formed in the substrate, the junction isolation region formed between the photodiode and the trench isolation region, the junction isolation region preventing contact between the photodiode and the trench isolation region; an isolation surface implant, the isolation surface implant being situated within the photodiode and only in a portion of the photodiode, such that the isolation surface implant is in contact with a top surface of the substrate to provide electrical isolation between the photodiode and the top surface of the substrate, wherein the isolation surface implant is not covered by an insulating film.