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:
May. 16, 2000
Filed:
Apr. 23, 1996
Applicant:
Inventors:
Assignee:
Hitachi Cable, Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B32B / ;
U.S. Cl.
CPC ...
156261 ; 156518 ; 1565831 ; 156264 ; 156265 ; 83690 ; 83 31 ; 83684 ; 83685 ; 83686 ;
Abstract
An apparatus for sticking a film to a lead frame has a punch moving up and down for punching a film, a die for placing the film to be punched, and a heating plate for heating a lead frame. A punched film with a predetermined shape is applied on the lead frame and thermally compressed and adhesively attached on a lead portion of the lead frame. The die is additionally provided with a buffer layer on the top plane of the die for relaxing compressing stress but increasing tensile stress put to the film at the punching step so that a punched film is prevented from producing cracks on the cutting end thereof.