Problems of Maintaining Equipment Containing Integrated Circuits 670639

This paper discusses some of the problems of developing and maintaining equipment containing integrated circuits. The problems discussed fall into three categories: (1)Processing, (2) Fault Isolation, and (3) Human Error. Quantitative study of these problems shows the highest number were experienced during preliminary-manufacturing and testing (screening and burn-in), with a decrease during final manufacturing checkout (board assembly and final testing) and a minimum during the system operational period.
The paper concludes that maintainability is still the necessity it was even with the advent of reliable integrated circuits. This is substantiated by the many failures and defects encountered during manufacturing and development phases. Manufacturing economics force the consideration of maintainability in integrated circuit design.


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