Patent · US Expired

Solder interconnection structure

US5250848A · kind A · utility

49Cited by
9References
24Claims
0Family size

Assignee

Inventors

Key dates

Filing dateJul 30, 1991
Grant dateOct 5, 1993
Priority date
Expiry dateJul 30, 2011

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY10T428/31547
  • WIPO fieldAudio-visual technology
  • WIPO sectorElectrical engineering

Abstract

Solder interconnection whereby the gap created by solder connections between a carrier substrate and semiconductor device is filled with a composition obtained from curing a preparation containing a cycloaliphatic polyepoxide and/or curable cyanate ester or prepolymer thereof; filler having a maximum particle size of 31 microns and being at least substantially free of alpha particle emissions.

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