Patent · US Expired

High thermal conductivity substrate

US4104344A · kind A · utility

113Cited by
6References
3Claims
0Family size

Assignee

Inventors

Key dates

Filing dateSep 12, 1975
Grant dateAug 1, 1978
Priority date
Expiry dateSep 12, 1995

Classification

  • Technology area (CPC H)Electricity
  • CPC primaryH01L2924/0002
  • WIPO fieldSemiconductors
  • WIPO sectorElectrical engineering

Abstract

A high thermal conductivity substrate is formed by making a sintered diamond composite and thereafter modifying the electrical properties of the composite by leaching graphite and other non-diamond materials from the composite and subsequently infusing the leached composite with material having known electrical properties. Alternatively, a diamond composite having high thermal conductivity known electrical properties is prepared and subsequently leached to remove graphite and other materials which interfere with the known electrical properties of the composite material.

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