Nanoengineered thermal materials based on carbon nanotube array composites
US7273095B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Apr 13, 2004 |
| Grant date | Sep 25, 2007 |
| Priority date | — |
| Expiry date | Apr 13, 2024 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01L2924/15312
- WIPO fieldMicro-structural and nano-technology
- WIPO sectorChemistry
Abstract
A method for providing for thermal conduction using an array of carbon nanotubes (CNTs). An array of vertically oriented CNTs is grown on a substrate having high thermal conductivity, and interstitial regions between adjacent CNTs in the array are partly or wholly filled with a filler material having a high thermal conductivity so that at least one end of each CNT is exposed. The exposed end of each CNT is pressed against a surface of an object from which heat is to be removed. The CNT-filler composite adjacent to the substrate provides improved mechanical strength to anchor CNTs in place and also serves as a heat spreader to improve diffusion of heat flux from the smaller volume (CNTs) to a larger heat sink.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.