Monolithic printhead with self-aligned groove and relative...

Details Monolithic printhead with self-aligned groove and relative... Monolithic printhead with self-aligned groove and relative...

2006-06-27

2006-06-27

Stephens, Juanita D. (Department: 2853)

Incremental printing of symbolic information

Ink jet

Ejector mechanism

C347S063000

Reexamination Certificate

active

07066581

ABSTRACT:
A monolithic thermal ink jet printhead (40) comprising a groove (45), a plurality of chambers (74) and nozzles (56) is manufactured by means of steps of: (203, 205) partially etching the groove (45) by means of a “dry” process and a “wet” process; (210) depositing a plurality of sacrificial layers (54); (212) obtaining a plurality of casts (156); (216) completing the etching of the groove (45) by means of an electrochemical process; and (220) removing the casts (156) and the sacrificial layers (54) in such a way as to obtain a plurality of nozzles (56) and chambers (74).

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Search Report (dated Dec. 3, 2001), International Application No. PCT/IT01/00448.

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