Heat radiating plate with supporting members and protrusion members
US10619948B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 25, 2013 |
| Grant date | Apr 14, 2020 |
| Priority date | — |
| Expiry date | Feb 18, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01L2924/0002
- WIPO fieldSemiconductors
- WIPO sectorElectrical engineering
Abstract
A heat radiating plate 10 of a metal material includes a flat plate portion 10a, a large number of columnar protruding portions 10b which protrude from one major surface of the flat plate portion and which are integrated with the flat plate portion, and a reinforcing plate member 12 of a material, which has a higher melting point than that of the flat plate portion and columnar protruding portions and which is arranged in a region, which is arranged in the flat plate portion and which is close to one major surface of the flat plate portion, the reinforcing member passing through the flat plate portion to extend in directions substantially parallel to the one major surface of the flat plate portion and having end faces exposed to the outside, the whole surface of the reinforcing member except for the end faces being bonded directly to the flat plate portion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.