Methods for forming process test capacitors for testing embedded passives during embedment into a printed wiring board
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United States of America Patent
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Jan 19, 2010
Grant Date -
Jun 19, 2008
app pub date -
Dec 18, 2006
filing date -
Dec 18, 2006
priority date (Note) -
Expired
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Abstract
Making process test capacitors simultaneously with circuit capacitors that are to be embedded into a printed wiring board and firing the test capacitors to result in fired-on-foil test capacitors for the purpose of using the test capacitors as test substitutes for the embedded circuit capacitors to predict whether capacitance, dissipation factor or insulation resistance of the circuit capacitors will fall within acceptable specified ranges prior to and after embedment.
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