Method of manufacturing printhead

Details Method of manufacturing printhead Method of manufacturing printhead

2005-12-06

2005-12-06

Trinh, Minh (Department: 3729)

Metal working

Method of mechanical manufacture

Fluid pattern dispersing device making, e.g., ink jet

C029S846000, C347S063000, C216S027000

Reexamination Certificate

active

06971170

ABSTRACT:
A method of manufacturing a printhead for raising its product acceptance rate and improving its quality is provided. The method of manufacturing printheads includes steps of providing a base layer, forming a pattern layer on the base layer by a semi-conductor manufacturing process, forming a dry film of a channel barrier layer having an ink channel, a flow channel and plural ink cavities on the pattern layer; and adhering a nozzle plate on the dry film of the channel barrier layer by thermal compression. The pattern layer further includes a flow pattern and a base pattern surround a central location reserved for the ink channel, wherein the base pattern comprises at least a heating layer and a passivation layer, and the flow pattern is made of the same material and at the same height as the base pattern.

REFERENCES:
patent: 4513298 (1985-04-01), Scheu
patent: 4535343 (1985-08-01), Wright et al.
patent: 4809428 (1989-03-01), Aden et al.
patent: 6623109 (2003-09-01), Mou et al.

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