Passive layer for attenuation of near-field electromagnetic waves and heatdissipation including graphene, and electromagnetic device including the same
US9924619B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 10, 2012 |
| Grant date | Mar 20, 2018 |
| Priority date | — |
| Expiry date | Dec 9, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05K2201/0323
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The present invention relates to a passive layer including graphene for the attenuation of near-field electromagnetic waves and heat dissipation. The passive layer blocks electromagnetic waves radiated from an external electronic device or prevents electromagnetic waves generated in an electronic device from emitting to the outside. The passive layer is designed to reduce interference between transmission circuits of a device in the near-field region or influence such as malfunction caused by external electromagnetic waves. The present invention also relates to an electromagnetic device and a circuit board, each including the passive layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.