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:
Jun. 11, 1991
Filed:
Feb. 03, 1989
Applicant:
Inventor:
Masanobu Ogino, Yokosuka, JP;
Assignee:
Kabushiki Kaisha Toshiba, Kawasaki, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01L / ; H01L / ; H01L / ;
U.S. Cl.
CPC ...
357 60 ; 357 234 ; 357 38 ; 357 39 ; 357 91 ;
Abstract
A semiconductor element is formed in a composite substrate constructed by fixing two semiconductor substrates in close contact with each other, and crystal defects are formed in that portion of at least one of the two semiconductor substrates which lies near the junction plane of the two semiconductor substrates. The crystal defects act as the center of the recombination of excess minority carriers accumulated in an active region of the semiconductor element.