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:
Nov. 21, 2000
Filed:
Nov. 12, 1998
Applicant:
Inventors:
Assignee:
Siemens Aktiengesellschaft, Munich, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08J / ; C08K / ; C08L / ; C08F / ; C08G / ;
U.S. Cl.
CPC ...
523434 ; 522170 ; 523400 ; 523427 ; 524492 ; 524493 ; 525396 ; 525481 ; 525523 ; 525524 ; 528 87 ; 528103 ;
Abstract
A one-component epoxy resin for coverage of bare chips and for underfilling of flip chips is disclosed. Two polyol components are combined in the inventive epoxy resin which decidedly improve the properties of the resin with respect to coefficient of expansion, shrinkage stress, substrate adhesion, and reactivity.