Patent · US Expired

Conductive adhesive useful for bonding a semiconductor die to a conductive support base

US5043102A · kind A · utility

34Cited by
3References
20Claims
0Family size

Assignee

Inventors

Key dates

Filing dateNov 29, 1989
Grant dateAug 27, 1991
Priority date
Expiry dateNov 29, 2009

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY10T428/31522
  • WIPO fieldMacromolecular chemistry, polymers
  • WIPO sectorChemistry

Abstract

A conductive die attach composition containing no solvent and substantially no ionic impurities which comprises: PA1 (a) an epoxy resin system comprising (i) at least one low viscosity epoxy resin; and (ii) at least one epoxy resin hardener; PA1 (b) at least one unsaturated monomer which, when polymerized, is not capable of reacting with said epoxy resin system; PA1 (c) at least one free radical initiator for polymericing said unsaturated monomer; and PA1 (d) finely divided silver particles.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.