Method of fabricating thermal ink jet printheads

Details Method of fabricating thermal ink jet printheads Method of fabricating thermal ink jet printheads

1988-11-25

1989-11-07

Powell, William A.

Adhesive bonding and miscellaneous chemical manufacture

Delaminating processes adapted for specified product

Delaminating in preparation for post processing recycling step

156645, 156657, 156662, 156250, 156510, 346140R, H01L 21306, B44C 122, C03C 1500, C03C 2506

Patent

active

048789925

ABSTRACT:
An ink jet printhead fabrication process wherein a plurality of printheads are produced from two mated substrates by two dicing operations. One dicing operation produces the nozzle face for each of a plurality of printheads and optionally produces the nozzles. This dicing blade, together with specific operating parameters, prevent the nozzles from chipping and the nozzle faces from scratches and abrasions. A second dicing operation with a standard dicing blade severs the mated substrates into separate printheads. The dicing operation which produces the nozzle face is preferably conducted in a two-step operation. A first cut makes the nozzle face, but does not sever the two mated substrates. A second dicing cut severs the two substrates, but does so in a manner that prevents contact by the dicing blade with the nozzle face.

REFERENCES:
patent: Re32572 (1988-01-01), Hawkins et al.
patent: 4097310 (1978-06-01), Lindmayer
patent: 4564000 (1986-01-01), Stern et al.
patent: 4633847 (1987-01-01), Lossl et al.
patent: 4638337 (1987-01-01), Torpey et al.
patent: 4678529 (1987-07-01), Drake et al.

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