Printed circuit board
US8199522B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 6, 2009 |
| Grant date | Jun 12, 2012 |
| Priority date | — |
| Expiry date | Aug 14, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05K2201/10689
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A printed circuit board includes a first signal layer, a first reference layer, a second reference layer, and a second signal layer. An integrated circuit mounted on the first signal layer includes a power supply terminal connected to a first power supply via. The second signal layer includes a filter and a power supply wire. The filter includes a power terminal connected to the first power supply via, and a ground terminal connected to the second reference layer. The first power supply via is connected to the first reference layer through the power supply wire and a second power supply via. A void defined in the second reference layer is at least partially vertically overlapping with the power supply wire, and enables the first reference layer to function as a reference plane for the power supply wire, to increase impedance of the power supply wire.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.