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.:

US 6521919 B1

PDF
Full Text
Expired
Date of Patent:
Feb. 18, 2003

Filed:

Mar. 22, 2001
Applicant:
Inventors:

Noritoshi Hirano, Amagasaki, JP;

Katsumi Satoh, Chiyoda-ku, JP;

Yoshihiro Yamaguchi, Fukuoka, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 2/974 ; H01L 3/1111 ;
U.S. Cl.
CPC ...
H01L 2/974 ; H01L 3/1111 ;
Abstract

A semiconductor device is composed a semiconductor substrate having a first conducting-type first semiconductor layer, a second conducting-type second semiconductor layer, a first conducting-type third semiconductor layer, a second conducting-type fourth semiconductor layer and a first conducting-type fifth semiconductor layer, a first main electrode for short-circuiting the first semiconductor layer and the second semiconductor layer, a second main electrode for short-circuiting the fourth semiconductor layer and the fifth semiconductor layer, and a control electrode provided on the third semiconductor layer. The first semiconductor layer and the second semiconductor layer form a joint. The second semiconductor layer and the third semiconductor layer form a joint. The third semiconductor layer and the fourth semiconductor layer form a joint. The fourth semiconductor layer and the fifth semiconductor layer form a joint.


Find Patent Forward Citations

Hirano, Noritoshi. (2003). Semiconductor device of reduced thermal resistance and increased operating area (U.S. Patent No. 6521919). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/6521919

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

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