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:
Sep. 19, 2006
Filed:
Apr. 08, 2005
Applicant:
Richard A. Mann, Torrance, CA (US);
Inventor:
Richard A. Mann, Torrance, CA (US);
Assignee:
ESS Technology, Inc., Freemont, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 27/148 (2006.01);
U.S. Cl.
CPC ...
Abstract
An improved semiconductor device that reduces reverse bias junction leakage in a photodiode by using a junction isolation region to isolate the photodiode from a trench isolation region. The improved semiconductor device improves image quality for different applications such as stand-alone digital cameras and digital cameras embedded in other imaging devices such as cellular phones and personal digital assistants.