Patent · US Expired

Drop-in heat sink

US5530295A · kind A · utility

38Cited by
22References
3Claims
0Family size

Assignee

Inventor

Key dates

Filing dateMay 26, 1995
Grant dateJun 25, 1996
Priority date
Expiry dateMay 26, 2015

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY10T29/4935
  • WIPO fieldSemiconductors
  • WIPO sectorElectrical engineering

Abstract

A heat sink incorporated into an electronic package. The package contains an integrated circuit enclosed by a dielectric housing. Coupled to the circuit is a lead frame which has a plurality of leads that extend from the outer edges of the housing. The heat sink has a bottom surface pressed against the lead frame and an opposite top surface that is exposed to the ambient. The heat sink also has a pair of oblique steps which engage the housing and insure that the sink does not become detached from the package.

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