Method of making composite field-emitting arrays

Details Method of making composite field-emitting arrays Method of making composite field-emitting arrays

1990-11-01

1992-09-08

Ramsey, Kenneth J.

Electric lamp or space discharge component or device manufacturi

Process

With assembly or disassembly

445 50, 313351, H01J 902

Patent

active

051454351

ABSTRACT:
A field-emitting array is provided which comprises at least one thin wafer aving electrically conducting filaments extending through a glass matrix between a first and second parallel surface of the wafer. At the first surface, the filaments extend beyond the plane of the glass matrix. The filaments extending beyond the first surface have an electron-emitting coating on their cylindrical surfaces. The coating extends beyond the filament end to create a shape that emits electrons when an electrical field is applied between the filaments and an anode. In an alternative embodiment, the filaments are recessed below the first surface and a conducting coating forms an extractor on that surface.

REFERENCES:
patent: 2030185 (1936-02-01), Rose
patent: 3840955 (1974-10-01), Hagood et al.
patent: 4498952 (1985-02-01), Christensen
patent: 4756928 (1988-07-01), Senda et al.
patent: 4874981 (1989-10-01), Spindt
patent: 5089742 (1992-02-01), Kirkpatrick et al.
F. L. Carter ed., molecular electronic devices II, 1987, pp. 381-403.

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