Ink jet recording head and method for manufacturing the same

Details Ink jet recording head and method for manufacturing the same Ink jet recording head and method for manufacturing the same

2005-04-12

2005-04-12

Hassanzadel, P. (Department: 1763)

Etching a substrate: processes

Forming or treating thermal ink jet article

C216S041000, C216S056000, C347S070000, C347S084000, C347S092000, C029S890100, C438S021000

Reexamination Certificate

active

06878298

ABSTRACT:
In a method for manufacturing an ink jet recording head provided with a pressure generating chamber, this chamber includes a through-hole of a chamber plate and a pair of plates, between which plates the chamber plate is sandwiched. The processing step for forming this through-hole further includes the sub-steps of forming a first resist film and a second resist film on a first and a second surface of the chamber plate, respectively, wherein the resist films assume substantially a same shape, but are different in length from each other when measured in a direction parallel to a flow direction of ink, and etching away both the first and second surface of the chamber plate using the resist films as its masks so that the through-hole is formed in the chamber plate and serves as the pressure generating chamber.

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Japanese Office Action dated Dec. 20, 2001 with partial English translation.

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