Laminate printed circuit board with a magnetic layer
US6111479A · kind A · utility
62Cited by
3References
32Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 2, 1998 |
| Grant date | Aug 29, 2000 |
| Priority date | — |
| Expiry date | Mar 2, 2018 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05K2201/09263
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A laminate printed circuit board loaded with transistors, ICs (Integrated Circuits) or LSIs (Large Scale Integrated Circuits) and a method of producing the same are disclosed. The circuit board includes a signal layer, a ground layer and a power supply layer sequentially laminated with the intermediary of insulation layers. An impedance adding circuit is formed in the power supply layer. A magnetic layer is positioned at least above or at least blow the impedance adding circuit. The circuit board with this configuration reduces power supply noise to a noticeable degree.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.