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:
Nov. 06, 1990
Filed:
Feb. 03, 1983
Applicant:
Inventors:
Yutaka Kobayashi, Hitachi, JP;
Takaya Suzuki, Katsuta, JP;
Assignee:
Hitachi, Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01L / ;
U.S. Cl.
CPC ...
357 63 ; 357 231 ; 357 41 ; 357 34 ; 357 35 ;
Abstract
A semiconductor device has an active layer in which a semiconductor element is formed by employing a silicon single crystal as a substrate. The present invention causes a tensile strain to remain in the active layer, thereby to improve the carrier mobility.