Laminate printed circuit board with a magnetic layer
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Aug 29, 2000
Grant Date -
N/A
app pub date -
Mar 2, 1998
filing date -
Mar 3, 1997
priority date (Note) -
Expired
status (Latency Note)
Importance
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.
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