Structured surface with peak-shaped elements

Details Structured surface with peak-shaped elements Structured surface with peak-shaped elements

1996-12-09

1998-09-22

O'Shea, Sandra L.

Electric lamp and discharge devices

Electrode and shield structures

Point source cathodes

313309, 445 49, H01J 130

Patent

active

058119175

ABSTRACT:
Structured surface, having a support layer and, connected electrically to it, peak-shaped elements each peak-shaped element exhibiting a cylindrical or conical shaped stem region adjacent to the support layer and at least two, preferably 2 to 4 peaks at the free end of the stem region. The structured surface is suitable in particular as electron emission source for ultra-flat image screens, for electron lithography or for scanning or transmission microscopy.

REFERENCES:
patent: 3783325 (1974-01-01), Shelton
patent: 3921022 (1975-11-01), Levine
patent: 4969850 (1990-11-01), Wales
patent: 5211707 (1993-05-01), Ditchek et al.
patent: 5397957 (1995-03-01), Zimmerman
patent: 5608283 (1997-03-01), Twichell et al.

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