Title :
Integrated grid technology
Author :
Dohler, Gottfried H ; Rengan, A. ; Scafuri, F.
Author_Institution :
Northrop Corp., Rolling Meadows, Illinois
Abstract :
A new concept for integrated cathode grid structures is presented. Two fine photo etched grids of similar geometry are brazed into a sandwich structure where they remain spaced and electrically isolated from each other by small dielectric posts. The fabrication and testing of structures based on this concept has required a study of insulating materials at elevated temperatures and grid emission suppression schemes, the results of which are discussed. Life test results are related to physico-chemical processes taking place in the direct environment of thermionic cathodes.
Keywords :
Cathodes; Dielectric materials; Dielectrics and electrical insulation; Etching; Fabrication; Geometry; Isolation technology; Materials testing; Sandwich structures; Space technology;
Conference_Titel :
Electron Devices Meeting, 1980 International
DOI :
10.1109/IEDM.1980.189870
