The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 15, 1991
Filed:
Sep. 14, 1990
Applicant:
Inventor:
Jan S Iwanczyk, Los Angeles, CA (US);
Assignee:
Xsirius Photonics, Inc., Los Angeles, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L / ; H01L / ; H01L / ;
U.S. Cl.
CPC ...
357 30 ; 357 13 ; 357 56 ; 357 68 ; 357 72 ;
Abstract
Large area semiconductor photodiodes are made free of microcracks by forming on the incident light surface of the device a ring-shaped electrode structure. The electrode structure adds rigidity to the device when the edge surface of the device is later bevelled, a process which creates microcracks normally.