Method and apparatus for determining surface roughness of metal foil within printed circuits
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United States of America Patent
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Oct 15, 2013
Grant Date -
May 2, 2013
app pub date -
Oct 31, 2011
filing date -
Oct 31, 2011
priority date (Note) -
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Abstract
In one embodiment, a method includes capturing an image of a piece of a printed circuit board (PCB) that includes at least one inner layer having a metal foil portion. The piece of the PCB includes a cross-section of the inner layer having the metal foil portion. The method also includes determining a surface roughness of the metal foil portion, wherein determining the surface roughness of the metal foil portion includes processing the image.
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