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:
Jun. 01, 1999
Filed:
Dec. 09, 1996
Katsuya Fukase, Nagano, JP;
Takahiro Iijima, Nagano, JP;
Masao Nakazawa, Nagano, JP;
Shinichi Wakabayashi, Nagano, JP;
Shinko Electric Industries Co. Ltd., Nagano, JP;
Abstract
In a method for manufacturing a lead frame, a predetermined pattern is formed on a matrix 10 by a resist, an electro-deposition portion is provided in a cavity formed in the resist patterns 12, and the electrodeposition pattern 13 is separated from the matrix 10. The resist pattern is formed on the matrix 10 so that a cavity portion 17 connecting a plurality of cavity 16 ends for inner lead formation can be included in the resist pattern, and an electro-deposition portion is provided into the cavity portion 17 so that the electro-deposition pattern 13 can be formed into a configuration in which the tip ends of the inner leads 22 are connected by a connecting piece 21, and the electro-deposition pattern 13 is separated from the matrix 10 while the tip ends of the inner leads 22 are connected by the connecting piece 21.