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a cause of the non-solderability of ceramic capacitor terminationsThe results of an analysis into the cause of the non-solderability of multiple defective part lots from two capacitor manufacturers are described. This analysis consisted of visual, scanning electron microscopic, surface, and metalographic examinations and analyses. The results indicated that non-solderability results from areas of excess porosity in the termination which are caused by segregation of ink constituents during manufacturing. This segregation can be minimized by proper monitoring and control of process variables; where excess porosity does occur, solderability can be improved by proper precleaning of parts.
Document ID
19810017850
Document Type
Conference Paper
Authors
Cozzolino, M. J.
(Hughes Aircraft Co. Culver City, CA, United States)
Kumar, A.
(SEAL, Inc., Culver City Calif., United States)
Ewell, G. J.
(Hughes Aircraft Co. Culver City, CA, United States)
Date Acquired
August 11, 2013
Publication Date
June 1, 1981
Publication Information
Publication: NASA. Marshall Space Flight Center Capacitor Technol., Appl. and Reliability
Subject Category
ELECTRONICS AND ELECTRICAL ENGINEERING
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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