METHOD FOR IMPROVED BRITTLE MATERIALS PROCESSING
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United States of America Patent
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Mar 25, 2010
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Mar 27, 2009
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Abstract
An improved method for laser machining features in brittle materials such as glass is presented, wherein a tool path related to a feature is analyzed to determine how many passes are required to laser machine the feature using non-adjacent laser pulses. Laser pulses applied during subsequent passes are located so as to overlap previous laser spot locations by a predetermined overlap amount. In this way no single spot receives excessive laser radiation caused by immediately subsequent laser pulses being applied adjacent to a previous pulse location.
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