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:
Oct. 25, 1994
Filed:
Feb. 26, 1993
Applicant:
Inventors:
Stephen M Dershem, San Diego, CA (US);
Deborah L Derfelt, San Diego, CA (US);
Dennis B Patterson, La Jolla, CA (US);
Assignee:
Quantum Materials, Inc., San Diego, CA (US);
Primary Examiner:
Int. Cl.
CPC ...
C08K / ; C08K / ; H01B / ; C08G / ;
U.S. Cl.
CPC ...
524439 ; 524261 ; 524284 ; 524305 ; 524320 ; 524440 ; 524441 ; 528119 ; 528422 ; 252511 ; 252512 ; 252513 ; 252514 ; 252518 ;
Abstract
In accordance with the present invention, there is provided a novel composition for attaching a semiconductor device to a substrate. The invention composition comprises liquid polycyanate ester monomer, electrically conductive filler rendered substantially free of catalytically active metal ions and a curing catalyst. Treatment of filler to render it free of catalytically active metal ions significantly extends the pot life of the composition.