High performance reworkable heatsink and packaging structure with solder release layer and method of making
US7435622B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 22, 2007 |
| Grant date | Oct 14, 2008 |
| Priority date | — |
| Expiry date | Oct 22, 2027 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01L2924/01322
- WIPO fieldSemiconductors
- WIPO sectorElectrical engineering
Abstract
A method of making and a high performance reworkable heatsink and packaging structure with solder release layer are provided. A heatsink structure includes a heatsink base frame. A selected one of a heatpipe or a vapor chamber, and a plurality of parallel fins are soldered to the heatsink base frame. A solder release layer is applied to an outer surface of the heatsink base frame. The solder release layer has a lower melting temperature range than each solder used for securing the selected one of the heatpipe or the vapor chamber, and the plurality of parallel fins to the heatsink base frame. After the solder release layer is applied, the heatpipe or the vapor chamber is filled with a selected heat transfer media.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.