Circuit board having circumferential shielding layer
US8592690B2 · kind B2 · utility
0Cited by
3References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 23, 2011 |
| Grant date | Nov 26, 2013 |
| Priority date | — |
| Expiry date | Dec 6, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05K2201/09981
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A circuit board (100) includes a first shielding layer (20) extending horizontally, an accessorial shielding layer, a signal circuit layer (3) positioned between the first shielding layer and the accessorial shielding layer, and a circumferential shielding layer (6) surrounding the circuit board and electrically connecting with the first shielding layer and the accessorial shielding layer to improve shielding effect.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.