Electronic assembly having electrically-isolated heat-conductive structure
US6873043B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 10, 2003 |
| Grant date | Mar 29, 2005 |
| Priority date | — |
| Expiry date | Apr 10, 2023 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01L2924/3025
- WIPO fieldSemiconductors
- WIPO sectorElectrical engineering
Abstract
An electronic assembly equipped with a heat-conductive structure, and to a method of conducting heat from a circuit device within such an assembly. The heat-conductive structure comprises an interconnect layer, a contact layer, and an electrically insulating layer between the interconnect and contact layers. The interconnect layer contacts circuit elements on the topside of the device, and comprises extensions that contact conductors on the substrate to which the device is attached. The interconnect and contact layers are both formed of thermally and electrically conductive materials, such that the heat-conductive structure electrically interconnects the topside of the device with the substrate and thermally interconnects the topside with a heat sink placed in contact with the contact layer. Because of the presence of the insulating layer, the heat sink does not interfere with the electrical connections provided by the interconnect layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.