Circuit board and electronic circuit module using the same
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United States of America Patent
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Apr 30, 2019
Grant Date -
Nov 30, 2017
app pub date -
May 25, 2017
filing date -
May 30, 2016
priority date (Note) -
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status (Latency Note)
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Abstract
Disclosed herein is an electronic circuit module that includes a circuit board and a common mode filter mounted on the circuit board. The common mode filter includes first and second terminal electrodes constituting a first pair of terminal electrodes and third and fourth electrodes constituting a second pair of terminal electrodes. The circuit board includes: a first wiring layer having first, second, third, and fourth land patterns connected to the first, second, third, and fourth terminal electrodes, respectively, and first, second, third, and fourth wiring patterns connected to the first, second, third, and fourth land patterns, respectively; and a second wiring layer having a ground pattern that overlaps the first, second, third, and fourth wiring patterns without overlapping the first and second land patterns.
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