Electron DC printer

Details Electron DC printer Electron DC printer

1991-02-06

1992-11-24

Miller, Jr., George H.

Recorders

Electric recording

Electrochemical

346158, G01D 1506

Patent

active

051667096

ABSTRACT:
A DC operated printhead emits electrons by field emission at each crossing of first and second electrodes. Plural small electrode sets consisting of a cathode emitting cone and an anode aperture form a gap which less than the electron mean free path in an ambient atmosphere, and the sets are preferably closely spaced to form a substantially collimated beam. A third electrode preferably accelerates and cleans up the beam. Different gases may be used to increase emission or transport efficiency, and enhance electrode lifetime.

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C. A. Spindt et al., "Physical Properties Of Thin-Film Field Emission Cathodes With Molybdenum Cones", J. of Appl. Phy 47.12, 1976, pp. 5248-5261.
J. A. Dayton, Jr. et al., "Ultra Small Electron Beam Amplifiers" IEDM-86 pp. 780-783.
"Cold Cathodes-Vacuum Microelectronics Enter The Flat-Display Race" Scientific American, 1990, pp. 122-123.

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