Printed wiring board with integrated coil inductor
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United States of America Patent
Stats
-
Nov 2, 1999
Grant Date -
N/A
app pub date -
May 21, 1998
filing date -
May 22, 1997
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An insulative magnetic layer is disposed between a power source conductor layer and a ground conductor layer of a printed-wiring board. Two pieces of conductors are formed by cutting out a part of the power source conductor layer. Another two pieces of conductors are formed by cutting out a part of the ground conductor layer. The former conductors and the latter conductors are connected by five viaholes. A spiral coil inductor of a spiral form is formed in this way. This inductor has the strengthened inductance owing to the insulative magnetic layer provided therein.
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Cited Art Landscape
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