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. 30, 1992
Filed:
Feb. 14, 1991
Applicant:
Inventors:
Yasuo Takemura, Nagoya, JP;
Osamu Narimatsu, Nagoya, JP;
Kazuyoshi Komatsu, Nagoya, JP;
Yoko Takeuchi, Nagoya, JP;
Assignee:
Misui Toatsu Chemicals, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C09J / ;
U.S. Cl.
CPC ...
428 40 ; 428219 ; 428220 ; 428354 ;
Abstract
The present invention provides a water processing film fitted on one side of the base film with a pressure-sensitive adhesive layer and further with a release film on the surface of the pressure-sensitive adhesive layer, and coated on the back side of the base film a phosphoric surfactant wherein ionic components are not detected by ion chromatography, and can prevent failure of an integrated circuit dye static electricity generated in the handling of the wafer processing film and can also inhibit contamination and corrosion of the wafer by surfactant.