Method of manufacturing a heat sink made of aluminum
US6382502B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 8, 2000 |
| Grant date | May 7, 2002 |
| Priority date | — |
| Expiry date | Mar 8, 2020 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01L2924/0002
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A heat sink made of aluminum having both high strength and heat dissipation performance together is manufactured.In a method of manufacturing a heat sink made of aluminum by brazing a plurality of fins 13 on a heat dissipating substrate 11, the fin 13 comprises an Al—Mg—Si series alloy containing from 0.3 to 0.7% by weight of Mg, from 0.3 to 0.7% by weight of Si and the balance of Al and inevitable impurities, and is put to cooling at a rate of 50° C./min or more in a range from 450-500° C. to 300° C. in the cooling process after heating for brazing and, subsequently, artificial aging is applied at 100 to 250° C.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.