Scribing wheel, method for manufacturing the scribing wheel, and scribing method
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United States of America Patent
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Oct 6, 2015
Grant Date -
Dec 13, 2012
app pub date -
Jun 7, 2012
filing date -
Jun 8, 2011
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Abstract
A scribing wheel for scribing a brittle material-made substrate. Disc-shaped scribing-wheel base material in use is so designed that mid-portion of disc periphery has the largest diameter. Diamond film is formed on the periphery by a CVD method. The periphery is ground in the middle so that a plane including a circle defined by ridge line becomes perpendicular to the central axis of the scribing wheel.
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