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:
Jan. 27, 2009
Filed:
Apr. 01, 2005
Applicants:
Kye-won Maeng, Seoul, KR;
Sung-ryoul Bae, Suwon-si, KR;
Inventors:
Kye-won Maeng, Seoul, KR;
Sung-ryoul Bae, Suwon-si, KR;
Assignee:
Samsung Electronics Co., Ltd., Suwon-si, Gyeonggi-do, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 31/062 (2006.01);
U.S. Cl.
CPC ...
Abstract
A photo diode includes a buried layer of first conductivity type, an epitaxial layer of first conductivity type and an epitaxial layer second conductivity type which are sequentially formed on a semiconductor substrate, a doped shallow junction layer of second conductivity type which is formed using a solid state diffusion process from a surface region to an internal region of the epitaxial layer of second conductivity type, and a silicon oxide film pattern and a silicon nitride film pattern which are sequentially formed on the shallow junction layer.