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.

Date of Patent:
Jun. 24, 1997

Filed:

Mar. 14, 1995
Applicant:
Inventors:

Yasuhito Naruse, Shizuoka, JP;

Kiyoshi Kamitani, Shizuoka, JP;

Akio Uesugi, Shizuoka, JP;

Tsutomu Kakei, Shizuoka, JP;

Gouichi Morohoshi, Tokyo, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03F / ; G03F / ; H01L / ;
U.S. Cl.
CPC ...
428460 ; 428463 ; 428901 ;
Abstract

Disclosed are i) a lead-frame forming material which contains a light-sensitive material comprising (1) a diazo salt light-sensitive resin and (2) a water-insoluble but alkaline water-soluble lipophilic high molecular weight compound, ii) a lead-frame forming material which contains a light-sensitive material comprising a photodimeric light-sensitive composition, and iii) a lead-frame forming material which contains a light-sensitive material comprising (1) a water-insoluble but alkaline water-soluble resin, (2) a compound capable of generating an acid by irradiation with active rays or radiant rays, and (3) a compound containing at least one crosslinkable group by the action of the acid.


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