Patent · US Expired

Heat spreader

US5949138A · kind A · utility

5Cited by
4References
20Claims
0Family size

Assignee

Inventors

Key dates

Filing dateOct 31, 1997
Grant dateSep 7, 1999
Priority date
Expiry dateOct 31, 2017

Classification

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

Abstract

A heat spreader (10) is provided for dissipating heat from a semiconductor die (32). The heat spreader (10) comprises a thermally conductive sheet (12) having an aperture (14) formed therein. At least one set of opposing members (20) extends inwardly, but do not contact, within the aperture (14). The opposing members (20) can receive adhesive material for securing the semiconductor die (32) to the heat spreader (10) such that the semiconductor die (32) is disposed over the aperture (14).

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