Process for manufacturing substrate for ink jet recording head u

Details Process for manufacturing substrate for ink jet recording head u Process for manufacturing substrate for ink jet recording head u

1995-04-27

1999-01-12

Gorgos, Kathryn L.

Electrolysis: processes, compositions used therein, and methods

Electrolytic coating

Coating selected area

C25D 1102

Patent

active

058581979

ABSTRACT:
An ink jet recording head comprises a discharging opening for liquid discharge and an electricity-heat convertor. The electricity-heat convertor comprises a heat-generating resistor and electrodes attached to the resistor. The heat-generating resistor and electrodes are formed from a single layer of electroconductive material which is anodically oxidized to change it into an insulating material except in the region where the resistor and electrodes are located. The resistor is formed by anodically oxidizing a portion of the layer which remained electroconductive after the first anodic oxidation to obtain a desired resistance value.

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