LASER PROCESSING APPARATUS AND LASER PROCESSING METHOD
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United States of America Patent
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Issued Date -
Apr 18, 2024
app pub date -
Oct 13, 2023
filing date -
Oct 14, 2022
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Abstract
A laser processing apparatus includes a chuck table that holds a workpiece, a laser beam irradiation unit that irradiates the workpiece with a laser beam, and a feed mechanism that moves the chuck table and the laser beam irradiation unit relative to each other to execute processing feed. The laser beam irradiation unit includes a laser oscillation mechanism that emits a pulsed laser beam and a beam condenser that condenses the pulsed laser beam emitted by the laser oscillation mechanism and irradiates the workpiece with the pulsed laser beam. The laser oscillation mechanism has a group setting part that sets multiple pulsed laser beams into one group and a time interval setting part that sets a time interval of the pulsed laser beams that configure the one group, and sets the repetition frequency in such a manner as to regard the one group as one unit.
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