Method for manufacturing a liquid-discharging recording head
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United States of America Patent
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-
Dec 30, 2003
Issued Date -
N/A
app pub date -
Dec 9, 1998
filing date -
Dec 10, 1997
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A method for manufacturing a liquid-discharging recording head can prevent deviation in the dimensions and the pitch of grooves, serving as liquid channels, and holes, serving as discharging ports, and generation of burrs around discharging ports while maintaining the grooves and the holes to desired sizes and without increasing a time required for the processing when forming the grooves and the holes by projecting a laser beam. When performing ablation processing of the liquid-channel grooves or the discharging ports in a top-plate blank by projecting the laser beam, the processing is performed by changing the energy density per unit time of the laser beam continuously or stepwise by adjusting the oscillation voltage or the oscillation frequency of the laser beam, attenuating the laser beam, or moving a substance to be processed along the optical axis.
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