Process of producing liquid discharge head base material
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United States of America Patent
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May 21, 2013
Grant Date -
Mar 10, 2011
app pub date -
Aug 30, 2010
filing date -
Aug 30, 2010
priority date (Note) -
Withdrawn
status (Latency Note)
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Abstract
A process includes preparing a base material having a first surface provided with an element generating energy that is used for discharging a liquid and an electrode layer that is connected to the element; forming a hollow on a second surface, which is the surface on the opposite side of the first surface, of the base material, wherein part of the electrode layer serves as the bottom face of the hollow; covering the surface of the base material and the bottom face forming the inner face of the hollow with an insulating film; and partially exposing the electrode layer by removing part of the insulating film covering the bottom face using laser light.
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