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. 16, 1997
Filed:
Jul. 25, 1995
Applicant:
Inventors:
Masao Makiuchi, Kawasaki, JP;
Naoki Yamamoto, Kawasaki, JP;
Assignee:
Fujitsu Limited, Kawasaki, JP;
Primary Examiner:
Int. Cl.
CPC ...
H01L / ;
U.S. Cl.
CPC ...
257184 ; 257443 ; 257458 ; 257459 ; 257737 ; 257745 ;
Abstract
A semiconductor photodetection device includes a semiconductor layer of a first conductivity type in which a pair of conductive regions of a second conductivity type are formed, the first conductive region acting as a photodiode and having an area substantially smaller than the area of the second conductive region, wherein the second conductive region carries a second metal bump of which area is at least ten times as large as a first metal bump that is provided on the first conductive region.