Process of producing ink jet recording head and ink jet apparatus having the ink jet recording head
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United States of America Patent
Stats
-
Nov 10, 1992
Grant Date -
N/A
app pub date -
Feb 27, 1990
filing date -
Mar 1, 1989
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A process of producing an ink jet recording head of the type that has an electro-thermal converting element which forms a heating surface in the ink channel, comprises preparing a substrate having the heating surface formed thereon, forming a cover film on the heating surface so as to cover at least the heating surface, forming the ink channel on the substrate and removing the cover film through the ink channel. Disclosed also are an ink jet recording head produced by the process, and an ink jet recording apparatus incorporating the ink jet recording head.
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