Carrier substrate with a thick metal interlayer and a cooling structure
US11564307B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 19, 2017 |
| Grant date | Jan 24, 2023 |
| Priority date | — |
| Expiry date | Feb 21, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01L23/3121
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The present invention proposes a carrier substrate (1) for electrical components (13), the carrier substrate (1) having a component side (4) and a cooling side (5) which is opposite the component side (4) and has a cooling structure (30), the carrier substrate (1) comprising a primary layer (10) which faces the component side (4) and is produced from ceramic for electrical insulation, and a secondary layer (20) which faces the cooling side (5) for stiffening the carrier substrate (1), characterized in that a metallic intermediate layer (15) is arranged between the primary layer (10) and the secondary layer (20) for heat transfer from the component side (4) to the cooling side (5), the metallic intermediate layer (15) being thicker than the primary layer (10) and/or the secondary layer (20).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.