Back to results
US 11,749,486 B1Granted
Systems, methods and apparatus for fabricating and utilizing a cathode
AssigneeGovernment of the United States as Represented by the Secretary of the Air Force
InventorsBrad Winston Hoff, Wilkin Wai-Hang Tang, Sterling Ryan Beeson, Ali Sayir
Life of this patent
Estimating the term…
Abstract
Systems, methods and apparatus related to a method for constructing a field emission device. The method includes providing a metal cathode substrate; shaping a carbon fiber fabric into a pattern, creating a patterned carbon fiber fabric; and brazing at least a portion of the patterned carbon fiber fabric to the metal cathode substrate.
Claims32
A field emission device, comprising:
- a metal cathode substrate;
- and
- a patterned carbon fiber fabric, at least a first portion of the patterned carbon fiber fabric is brazed to the metal cathode substrate.
A field emission device comprising:
- a metal cathode substrate;
- a carbon fiber fabric formed into a pattern configured to cover at least a first portion of the metal cathode substrate;
- and
- a braze alloy or metallic compound, having a predetermined form prior to brazing, configured to form a carbon to metal bond.
1 more element
A system comprising:
- an anode;
- and
- a cathode having a metal cathode substrate and a patterned carbon fiber fabric, at least a first portion of the patterned carbon fiber fabric brazed to the metal cathode substrate and in operation an applied voltage is configured to propagate electrons from the carbon fiber toward the anode.
Dependencies are inferred from the claim text.