Glass film cleaving method and glass film laminate
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United States of America Patent
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Dec 15, 2015
Grant Date -
Oct 24, 2013
app pub date -
Apr 3, 2013
filing date -
Apr 5, 2012
priority date (Note) -
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Abstract
A glass film cleaving method includes cleaving a full-body of a glass film having a thickness of 200 μm or less by propagating an initial crack along a preset cleaving line through heating of the glass film with a laser beam followed by subsequent cooling of the glass film. The method also includes manufacturing a glass film laminate by setting a surface roughness Ra of a surface of the glass film to contact a support glass, which supports the glass film, and a surface of the support glass to contact the glass film to 2.0 nm or less, and by bringing the surfaces of the glass film and the support glass into surface contact with each other, followed by the cleaving.
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