Ink jet recording head and method for manufacturing the same
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United States of America Patent
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May 26, 2015
Grant Date -
Oct 2, 2014
app pub date -
Mar 31, 2014
filing date -
Apr 2, 2013
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
An ink jet recording head includes a substrate having a plurality of discharge energy generation elements and having an ink supply port, a protective film provided on the substrate and configured to protect wiring connected to the discharge energy generation elements, and an ink discharge port forming member, wherein the protective film has a protruding portion, wherein the ink discharge port forming member has a beam-like protrusion, wherein the beam-like protrusion has a reinforcing rib, and wherein a separation film containing gold is formed at a portion where the protruding portion and the reinforcing rib are held in close contact with each other.
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