US PATENT SUBCLASS 216 / 27-- FORMING OR TREATING THERMAL INK JET ARTICLE (E.G., PRINT HEAD, LIQUID JET RECORDING HEAD, ETC.)

US PATENT SUBCLASS 216 / 27
FORMING OR TREATING THERMAL INK JET ARTICLE (E.G., PRINT HEAD, LIQUID JET RECORDING HEAD, ETC.)

Current as of: June, 1999
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216 /	HD	ETCHING A SUBSTRATE: PROCESSES

27		FORMING OR TREATING THERMAL INK JET ARTICLE (E.G., PRINT HEAD, LIQUID JET RECORDING HEAD, ETC.)

DEFINITION

Classification: 216/27

FORMING OR TREATING THERMAL INK JET ARTICLE (E.G., PRINT HEAD, LIQUID JET RECORDING HEAD, ETC.):

(under the class definition) Process wherein etching is used in the forming or treating of an article whose ultimate use is to expel an ink droplet, and in which the ink droplet is produced by the action of thermal energy to form a propelling vapor.

SEE OR SEARCH CLASS

346, Recorders,

1.1, for processes of using thermal ink jet devices, subclass 75 for the use of a gas blast against a receiver in printing.

438, Semiconductor Device Manufacturing: Process,

21, for manufacturing an electrical device controlled printhead utilizing a semiconductive substrate having an electrical device formed therein or thereon.