Manufacture of printhead with diamond resistors

Fishing – trapping – and vermin destroying

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437918, 346 76PH, 347 64, H01L 2170

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active

053489098

ABSTRACT:
An thermal ink jet printhead is fabricated with resistors of doped diamond. A diamond substrate is masked in the pattern of the resistors and bombarded with boron ions with high energy to embed the boron with only a negligible amount on the surface. If a protective layer is applied, the same mask is used. The process is simple and low cost, and the resulting substrate is hard, insulating, and chemically inert.

REFERENCES:
patent: 4680859 (1987-07-01), Johnson
patent: 4683481 (1987-07-01), Johnson
"Electrical Conductivity of Nitrogen and Argon Implanted Diamond", Nuclear Instruments and Methods in Physics Research, pp. 1129-1133, 1983.
Wolf and Tauber, Silicon Processing for the VLSI Era, vol. I, pp. 321-324, 1990.
Journal of Applied Physics 54(4), Apr. 1993, at p. 2106, entitled "Effective p-type doping of diamond by boron ion implantation" by B. Braunstein and R. Kalish.
Japanese Journal of Applied Physics, vol. 28, No. 5, May 1989 at p. 758, entitled "Electrical Characteristics of Metal Contacts to Boron-Doped Diamond Epitaxial Film" by Hiromu Shimon et al.
IBM Technical Disclosure Bulletin article entitled "Thermal Ink Jet Heater Devices Incorporating Diamond-Like Carbon Films as Protective Overcoats," pp. 19-20, vol. 34, No. 2, Jul. 1991.

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