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. 17, 1988
Applicant:
Inventors:
Tsutomu Matsushita, Yokohama, JP;
Koichi Murakami, Yokosuka, JP;
Assignee:
Nissan Motor Company Limited, Yokohama, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01L / ; H01L / ; H01L / ;
U.S. Cl.
CPC ...
357 234 ; 357 42 ; 357 43 ; 357 48 ;
Abstract
An improved semiconductor device having a vertical MOS and another MOS circuit such as C-MOS is shown. To insulate the circuit from influences from the operation of the vertical MOS, the vertical MOS is fabricated in a diffused region which is formed on a semiconductor substrate while the circuit is fabricated in an epitaxial layer of an opposite conductivity type to that of the substrate.