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US 7,781,257 B2Granted
Electrical switching device and method of embedding catalytic material in a diamond substrate
AssigneeEvince Technology Limited
InventorGareth Andrew Taylor
Life of this patent
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Abstract
An electrical switching device (30) is disclosed. The device comprises a diamond substrate (24), a cathode (34) in contact with the substrate and having electrically conductive emitters (32) extending into the substrate, and an upper electrode (36) in contact with the substrate and spaced from the cathode.
Claims12
A method of modifying a substrate including at least one layer of diamond material, the method comprising:
- depositing at least one catalytic material on at least predetermined regions of diamond material of said substrate;
- causing at least part of said diamond material in contact with at least part of said catalytic material to be converted into non-diamond carbon;
- and
- causing at least part of said catalytic material to penetrate said substrate.
1 more element
Dependencies are inferred from the claim text.