Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Method of making a field emission cold cathode










Image Number 2 for United States Patent #6875462.

A method for making a field emission cold cathode for use in vacuum tubes. A carbon velvet material is coated with a low work function cesiated salt and bonded to a cathode surface. Alternatively, the carbon velvet material is bonded to the cathode surface before being coated with the cesiated salt. The coating may be applied by spraying the carbon velvet material with a cesiated salt solution, or by dipping the material into a crucible of molten cesiated salt. This abstract is provided to comply with the rules requiring an abstract, and is intended to allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure. It is submitted with the understanding that it will not be used to interpret or limit the scope or meaning the claims.








 
 
  Recently Added Patents
Integrated circuit packaging system with laser hole and method of manufacture thereof
Vacuum cleaner filter adapter ring
Reproducible dither-noise injection
Query optimization with awareness of limited resource usage
Radiation detector array
Efficient relay automatic repeat request procedure in broadband wireless access system
Acceleration based mode switch
  Randomly Featured Patents
Composite pressure tank and process for its manufacture
Universal rotating machine for expanding or compressing a compressible fluid
Carpet with end roll
Selective androgen receptor modulators and methods of use thereof
Differential transmitter and manifold mounting
Gutter bracket
Optical receiver comprising breakdown-voltage compensation
Process for producing chalcopyrite type compound thin film
Use of control matrix for cooling water systems control
Method of placing a component by means of a placement device at a desired position on a substrate holder, and device suitable for performing such a method