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:
Dec. 28, 1999
Filed:
Jun. 17, 1998
Norito Umehara, Hayami-gun, JP;
Masazumi Amagai, Hayami-gun, JP;
Mamoru Kobayashi, Yoshikawa, JP;
Kazuyoshi Ebe, Minamisaitama-gun, JP;
Texas Instruments Japan, Ltd., , JP;
Lintec Corporation, , JP;
Abstract
The wafer dicing/bonding sheet of the present invention comprises a soft film, a pressure sensitive adhesive layer formed on the soft film, a processing film for polyimide type resin composed of a heat resistant resin which has been formed on the pressure sensitive adhesive layer and a polyimide adhesive layer formed on the processing film. It is preferred that the processing film be a polyethylene naphthalate film whose surface has been subjected to an alkyd release treatment. The present invention facilitates expansion to be conducted after the wafer dicing.