公开(公告)号：US3622844A

公开(公告)日：1971-11-23

申请号：US3622844D

申请日：1969-08-18

Applicant: TEXAS INSTRUMENTS INC

Inventor： BARELLI ANTHONY E ,  SHAUNFIELD WALLACE N JR

IPC: H01L21/00 ,  H01L23/482 ,  H01L31/00 ,  H01L31/107 ,  H01L9/00 ,  H01L5/02 ,  H01L15/00

CPC classification number: H01L31/107 ,  H01L21/00 ,  H01L23/482 ,  H01L31/00 ,  H01L2924/0002 ,  H01L2924/00

Abstract: An avalanche Schottky-barrier photodiode includes a symmetrical metallic grid network deposited over a semiconductor substrate and surrounded by one or more metallic guard rings. When a sufficiently high voltage bias is supplied to the metallic grid network, carriers generated by light impinging upon the semiconductor substrate through the grid network are multiplied by the avalanche gain operation of the photodiode.