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. 21, 1992
Filed:
Dec. 14, 1990
Applicant:
Inventors:
Takahiro Yamada, Hirakata, JP;
Sumio Terakawa, Ibaraki, JP;
Assignees:
Matsushita Electronics Corporation, Kadoma, JP;
Matsushita Electric Industrial Co., Ltd., Kadoma, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01L / ; H01L / ; H01L / ;
U.S. Cl.
CPC ...
357 24 ; 357 30 ; 357 49 ; 357 55 ;
Abstract
Signal charge conveying regions are made as oblong depletion regions which are formed in operation state along and at the vicinity of side walls of a trench or groove in a seimconductor imaging device, thereby improving resolution power, dynamic range, sensitivity and S/N characteristics are improved.