04931813 is referenced by 74 patents and cites 9 patents.

A thermal ink jet head incorporates bubble-generating resistors, each with a relatively thick layer of unpassivated resistive material, such as TaAl. The thermal ink jet head includes an ink source, ink channels, respective orifices, and circuitry for providing the electrical energy which the resistors convert to heat to form bubbles which expel ink through respective orifices. A range between 3,000 .ANG. and 5,000 .ANG. is preferred for the resistive material to minimize failure rate while avoiding thermal, electrical and manufacturing limitations of passivated resistors.

Title
Ink jet head incorporating a thick unpassivated TaAl resistor
Application Number
99428
Publication Number
4931813
Application Date
February 28, 1989
Publication Date
June 5, 1990
Inventor
Harold W Levie
Livermore
CA, US
Howard H Taub
San Jose
CA, US
Alfred I Pan
Mountain View
CA, US
Assignee
Hewlett Packard Company
CA, US
IPC
B41J 2/05
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