Manufacture of a one piece full width ink jet printing bar

Details Manufacture of a one piece full width ink jet printing bar Manufacture of a one piece full width ink jet printing bar

1993-07-20

1994-06-21

Powell, William

Adhesive bonding and miscellaneous chemical manufacture

Delaminating processes adapted for specified product

Delaminating in preparation for post processing recycling step

156628, 156644, 156656, 156657, 156901, B44C 122, C23F 100, C03C 1500

Patent

active

053225945

ABSTRACT:
A method of manufacturing a one piece full width ink jet printing bar starting with a glass or ceramic plate with conductive vias, metal interconnects and ink feeds preformed on the plate. Heater filaments are formed from a suitable metal such as tungsten, nickel or tantalum on the plate and insulated from the metal interconnects with silicon nitride. Jet chambers and transport chambers to transport the ink from the ink feeds to the jet chambers are formed using sacrificial material and a structural layer. After the structural layer has been patterned the sacrificial material is removed forming the jet chambers and the transport chambers. Bonding bumps are then formed on the reverse side of the ceramic or glass plate from the jet chambers to provide connections to electronic components which determine which ink jet chambers should fire.

REFERENCES:
patent: 4528070 (1985-07-01), Gamblin
patent: 5126768 (1992-06-01), Nozawa et al.

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