PRODUCTION ENGINEERING MEASURE FOR THE IMPROVED RELIABILITY OF CAPACITORS, FIXED, SOLID ELECTROLYTE, TANTALUM HIGH-RELIABILITY 100 MFD-20 VOLT CAPACITORS.
Quarterly rept. no. 8, 29 Mar-28 Jun 65,
GENERAL INSTRUMENT CORP DARLINGTON S C CAPACITOR DIV
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Process improvement studies were conducted primarily on the 100 MFD - 20 Volt capacitor some of these studies were applied to the 6.8 - 35 volt rating. The areas of process improvement studies were 1 tantalum powder control 2 binder and binder ratio 3 anodizing and reforming 4 carbon and silver coating and 5 ageing. Evaluations of combinations of these process improvement studies were made through a series of matrix tests which included temperature cycling, 40-hour burn-in, temperature stability, surge voltage tests, surge voltage tests followed by short term life-tests 40 hours, and life-tests. A reliability prediction is given in which the basis for confidence in attaining the objective of a failure rate of 0.001 percent per thousand hours at a 60 percent confidence level is given. Author
- Electrical and Electronic Equipment
- Fabrication Metallurgy