3812559 is referenced by 146 patents and cites 2 patents.

Field-forming devices primarily useful as field ionizers and field emission cathodes and having as a basic element an array of closely spaced cones with sharp points supported on a substrate (in the most usual case conductive or semiconductive) are disclosed. Preferably, the field-forming structure is completed by a screen-like structure, e.g. as fine mesh screen, insulatively supported above the points with the center of apertures in the screen substantially aligned with the longitudinal axis of corresponding cones. A novel method of forming such structures includes placing a screen with a mesh corresponding to the desired number and packing density of sharp conical points in close proximity to, or in contact with, the substrate and projecting material through the screen onto the substrate whereby sharp cones of the material are formed on the substrates.

Title
Methods of producing field ionizer and field emission cathode structures
Application Number
05/216,539
Publication Number
3812559
Application Date
January 10, 1972
Publication Date
May 28, 1974
Inventor
Heynick Louis N
Spindt Charles A
Agent
Faubion Urban H
Assignee
Stanford Research Institute
IPC
H01j 09/02
H01J 09/02
H01T 23/00
H01J 49/10
H01J 49/16
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