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:
Feb. 15, 1994
Filed:
Oct. 05, 1992
Applicant:
Inventor:
Masahiro Tsuji, Kyoto, JP;
Assignee:
Rohm Co., Ltd., Kyoto, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B44C / ; C23F / ;
U.S. Cl.
CPC ...
156645 ; 156651 ; 1566591 ; 156902 ; 29827 ; 257666 ; 437220 ;
Abstract
The thickness of a portion of a metal plate for constituting a lead frame, which corresponds to a tip portion of respective lead terminals of the lead frame, is partially made thin by way of an etching treatment. Subsequently, the respective lead terminals of the lead frame are formed by a punching process or an etching process.
Quick Actions:
Tsuji, Masahiro. (1994). Method of manufacturing lead frame used in electronic component (U.S. Patent No. 5286342). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5286342
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile