Patent · US Expired

Conductive paste

US4410457A · kind A · utility

60Cited by
3References
6Claims
0Family size

Assignees

Inventors

Key dates

Filing dateMay 5, 1982
Grant dateOct 18, 1983
Priority date
Expiry dateMay 5, 2002

Classification

  • Technology area (CPC H)Electricity
  • CPC primaryH01L2924/0002
  • WIPO fieldElectrical machinery, apparatus, energy
  • WIPO sectorElectrical engineering

Abstract

An electroconductive paste comprising PA1 (a) an electroconductive filler, PA1 (b) a reactive solvent, and PA1 (c) a hardener comprising PA2 (c-1) an epoxy resin, PA2 (c-2) a latent hardener, and PA2 (c-3) an epoxy compound-dialkylamine adduct, the percent by weight of (a), (b) and (c) being 95 to 50, 1 to 20 and 4 to 30, respectively, and the weight ratio of (c-1):(c-2):(c-3) being 100:0 to 30:0.1 to 40. The paste is useful for bonding electronic elements to metal lead frames and/or substrates.

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