Bonded Cathode and Electrode Structure with Layered Insulation and Method of Manufacture.
Abstract
An object of the invention is to improve the longterm resistance stability of the insulating layer between the cathode and the grid (and also the heater) in a bonded grid-cathode tube. Features of the invention relate to the structure and manufacture method in which diffusion barriers of silicon nitride are incorporated in the insulating layer. In particular, with a principal insulator of boron nitride, thin films of silicon nitride are used between it and the cathode, and also between it and the grid. As a further detail feature, an additional thin film of BN is used for stress relief next to the cathode.
Document Details
- Document Type
- Technical Report
- Publication Date
- May 09, 1979
- Accession Number
- ADD006285
Entities
People
- Casmir R. Trzaskos
- David W. Oliver
Organizations
- United States Army