Heating resistor film, recording head substrate, recording...

Details Heating resistor film, recording head substrate, recording... Heating resistor film, recording head substrate, recording...

2005-11-15

2005-11-15

Stephens, Juanita D. (Department: 2853)

Incremental printing of symbolic information

Ink jet

Ejector mechanism

C347S056000

Reexamination Certificate

active

06964471

ABSTRACT:
To provide a heating resistor film having a sufficiently high durability to repetitive pulse applications, a recording head substrate including the heating resistor film, a recording head, and a recording apparatus. A heating resistor film that generates heat energy using currents flowing from a wire in a heat acting portion of a recording head substrate, is made of amorphous tantalum silicon nitride having a sheet resistance of 200 Ω/□ to 400 Ω/□, and has a thickness of 30 nm to 80 nm.

REFERENCES:
patent: 5376231 (1994-12-01), Matsumoto et al.
patent: 6068369 (2000-05-01), Saito et al.
patent: 6070968 (2000-06-01), Akino et al.
patent: 2002/0033750 (2002-03-01), Oizumi et al.
patent: 0825026 (1998-02-01), None
patent: 10-114071 (1998-05-01), None

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