Graphene based heat sink and method for manufacturing the heat sink
US11235557B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 30, 2020 |
| Grant date | Feb 1, 2022 |
| Priority date | — |
| Expiry date | Nov 30, 2040 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T156/108
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
Heat sink and method of manufacturing a graphene based heat sink, the method comprising: providing a first and second graphene film; arranging a layer of nanoparticles on a surface of the first and second graphene film to improve an adhesion strength between the graphene films; attaching the second graphene film to the first graphene film by means of an adhesive and the layer of nanoparticles; forming a laminated graphene film comprising a number of graphene film layers by repeating the steps, wherein the laminated graphene film is formed to have an anisotropic thermal conductivity; assembling a plurality of laminated graphene films by applying pressure and heat to cure the adhesive to form a graphene block; and removing selected portions of the graphene block to form a heat sink comprising fins extending from a base plate of the heat sink.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.