Monolithic printhead with built-in equipotential network and...

Details Monolithic printhead with built-in equipotential network and... Monolithic printhead with built-in equipotential network and...

2006-07-04

2006-07-04

Meier, Stephen D. (Department: 2853)

Incremental printing of symbolic information

Ink jet

Ejector mechanism

Reexamination Certificate

active

07070261

ABSTRACT:
An actuating assembly (50) for ink jet printheads consists of a silicon die (61), which comprises a groove (45) and a lamina (64), and of a structure (75) produced monolithically in the same production process. The actuating assembly (50) comprises a microhydraulics (63), the latter in turn comprising a plurality of channels (67) and chambers (57), made inside the structure (75) by means of a sacrificial metallic layer (54). A conducting layer (26) forms a single interconnected equipotential network used as the electrode during the processes of electrochemical etch stopping on the groove (45), of electrodeposition of the sacrificial layer (54) and of the latter's subsequent removal.

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