A POROUS SUBSTRATE RESISTOR AIMED AT MINIATURIZA TION OF METAL-FILM RESISTORS.
Abstract
Several parameters necessary for the successful manufacture of porous substrate resistors were established. Specifically, quartz was decided upon as the material of construction and the pore size was determined on the basis of avail ability and suitability to wattage requirements and resistor dimensions. The optimum temperature of heat treatment was established as 400 F and a method of termination utilizing silver braz ing was found to be quite successful. Heat dis sipation was related to resistor dimensions and shown to have no correspondence with pore size and/or film thickness. Impregnation as a means of enhancing heat dissipation was investigated with negative results. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Jun 30, 1963
- Accession Number
- AD0417222
Entities
People
- Theodore Matley