Heat sink spring clip
US5896270A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | May 21, 1997 |
| Grant date | Apr 20, 1999 |
| Priority date | — |
| Expiry date | May 21, 2017 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01L2924/0002
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A spring clip includes a continuous spring band forming an angular integral first spring finger for pressing an electronic device package against a flat surface of an apertured substrate. A first bend of less than 90.degree. forms a substantially linear intermediate first band portion extending at an acute angle from the spring finger and a second bend of about 180.degree. extends from the intermediate first band portion, these portions together forming an integral U-shaped member including at least one compressible barb for insertion into a substrate aperture to lock the chip in the substrate and to press a device package between the finger and the substrate. In one embodiment two spring fingers and two oppositely-facing barbs are provided on the U-shaped member so that two spaced packages can be clamped simultaneously on a substrate surface while utilizing a single aperture for the U-shaped member.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.