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:
Mar. 11, 1997
Filed:
Mar. 28, 1996
Applicant:
Inventors:
Yukinori Sakumoto, Shizuoka, JP;
Takeshi Hashimoto, Shizuoka, JP;
Takeshi Nishigaya, Shizuoka, JP;
Fumiyoshi Yamanashi, Shizuoka, JP;
Assignee:
Tomoegawa Paper Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B32B / ; B32B / ;
U.S. Cl.
CPC ...
428352 ; 428 413 ; 428 414 ; 428 418 ; 428212 ; 428354 ; 428447 ; 428451 ; 428483 ; 428511 ; 4283 / ;
Abstract
Adhesive tapes which can be adhered and cured at a relatively low temperature, keeps enough electric insulation in case of adhering to the leadframe of semiconductor devices. The adhesive tape comprises a releasing film and an adhesive layer provided on a surface of said releasing film, said adhesive layer being semi-cured into a B-stage and composed of: