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.

Date of Patent:
Jan. 27, 1987

Filed:

Aug. 23, 1983
Applicant:
Inventor:

Tetsuya Iizuka, Kawasaki, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L / ;
U.S. Cl.
CPC ...
357 42 ; 357 237 ; 357 65 ; 357 86 ; 307279 ;
Abstract

A source region and a drain region are formed in a semiconductor layer, a thin insulating layer of SiO.sub.2 is formed on the semiconductor layer, and a gate electrode is formed thereover. Al metal forms ohmic contacts with the source and drain regions to provide a source electrode and a drain electrode, respectively. Al diffused in the drain region remains within the drain region, and the drain region and the substrate region form a p-n junction. Al diffused in the source region traverses the source region and reaches the substrate region to form an ohmic contact between the source region and the substrate region.


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Iizuka, Tetsuya. (1987). Metal oxide semiconductor field-effect transistor with metal source (U.S. Patent No. 4639758). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4639758

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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