Method of making a drop-in heat sink
US5444909A · kind A · utility
22Cited by
5References
2Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 22, 1994 |
| Grant date | Aug 29, 1995 |
| Priority date | — |
| Expiry date | Mar 22, 2014 |
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.