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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 4025890 B1

PDFFull Text
Date of Patent:
May. 24, 1977

Filed:

Feb. 12, 1976

Semiconductor piezoresistive strain transducer

Applicant:
Inventors:

Youshi Hamaguchi, Mie, JA;

Noboru Yukami, Kawanishi, JA;

Tatsuyuki Tomioka, Hirakata, JA;

Yoshihito Shimizu, Shijonawate, JA;

Hiroyuki Kondo, Neyagawa, JA;

Assignee:

Matsushita Electric Industrial Co., Ltd., Osaka, JA;

Attorney:

Wenderoth, Lind & Ponack

Primary Examiner:

C L Albritton

Int. Cl.
CPC ...
G01L / ;
U.S. Cl.
CPC ...
338-2 ; 73 8 / ;
Abstract

A semiconductor piezoresistive strain transducer having a reduced neck with an hour-glass configuration interconnecting two pads, wherein the reduced neck and the pads have configurations the relation between which prevents corner tips of the pads from coming into contact with a surface of the slender center region of the reduced neck and producing a micro-defect on it, whereby the danger of breaking at the reduced neck is reduced.

Find Patent Forward Citations

Hamaguchi, Youshi. (1977). Semiconductor piezoresistive strain transducer (U.S. Patent No. 4025890). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4025890

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

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