Ink jet recording head with ink supply ports having a...

Details Ink jet recording head with ink supply ports having a... Ink jet recording head with ink supply ports having a...

2010-09-09

2011-11-15

Stephens, Juanita D (Department: 2853)

Incremental printing of symbolic information

Ink jet

Ejector mechanism

C347S040000, C347S063000

Reexamination Certificate

active

08057017

ABSTRACT:
A manufacturing method for a substrate for an ink jet head, including formation of an ink supply port in a silicon substrate, the method includes a step of forming, on one side of the substrate, an etching mask layer having an opening at a position corresponding ink supply port; a step of forming unpenetrated holes through the opening of the etching mask layer in at least two rows in a longitudinal direction of the opening; and a step of forming the ink supply port by crystal anisotropic etching of the substrate in the opening.

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