Accession Number : AD0817770

Title :   DEVELOPMENT OF A 1 KW, 1 KV AUDIO TRANSISTOR AND DRIVER TRANSISTOR FOR SONAR APPLICATIONS.

Descriptive Note : Interim engineering rept. no. 1, 16 Feb-16 May 67.

Corporate Author : RADIO CORP OF AMERICA SOMERVILLE NJ ELECTRONIC COMPONENTS AND DEVICES

Report Date : 01 JUL 1967

Pagination or Media Count : 37

Abstract : The technical approaches to be taken for the development of a 1 kilowatt, 1 kilovolt audio transistor and a suitable driver transistor are discussed. Initial device designs and processing conditions are described. Results of output transistor pressings are given. These results indicate that high voltages are possible with the fused overlay process but that these voltages, in general, degrade during the glassing sequence. Metal-oxide semiconductor capacitance voltage measurements are presented which indicate that the problem may be due to inversion layer formation during the silicon nitride deposition step prior to actual glass pressing. The proposed electrical parameters of the devices are reviewed and device evaluation techniques and facilities are discussed. (Author)

Descriptors :   (*TRANSISTORS, SONAR EQUIPMENT), AUDIO FREQUENCY, PROCESSING, CAPACITORS, SILICON COMPOUNDS, NITRIDES, SPECIFICATIONS, EPITAXIAL GROWTH, DEPOSITION, ELECTRICAL PROPERTIES, PRESS FORGING.

Subject Categories : Electrical and Electronic Equipment
      Acoustic Detection and Detectors

Distribution Statement : APPROVED FOR PUBLIC RELEASE