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:
May. 05, 1992
Filed:
Feb. 07, 1991
Applicant:
Inventors:
Naoto Miyashita, Yokohama, JP;
Koichi Takahashi, Kawasaki, JP;
Hironori Sonobe, Tokyo, JP;
Mitsutoshi Koyama, Tokyo, JP;
Assignee:
Kabushiki Kaisha Toshiba, Kawasaki, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01L / ;
U.S. Cl.
CPC ...
357 49 ; 357 47 ; 357 50 ;
Abstract
A semiconductor device of this invention is characterized in that one element region is electrically isolated from another element region adjacent thereto by forming a groove surrounding the one element region and a distance between the groove surrounding one element region and a groove surrounding the another element region is set to be equal to or larger than 3 .mu.m.