2003 Proceedings - 23rd Capacitor and Resistor Technology Symposium, pp. 155-162, Scottsdale, AZ, March 31 - April 3, 2003

Design Guidelines for Preventing Flex Cracking Failures in Ceramic Capacitors

N. Blattau, D. Barker, and C. Hillman
CALCE Electronic Products and Systems Center
University of Maryland
College Park, MD 20742


Surface mount multilayer ceramic capacitors (MLCCs) are one of the most common components found on modern circuit card assemblies. Introduced in 1977, they are well known for their reliability and have been rapidly accepted by the electronics industry. The reliability of a nominal MLCC is extremely high, with expected operating lifetimes in the decades, if not hundreds of years. However, to attain these levels of reliability MLCCs must have no critical defects and be used properly. Reliability problems can occur due to improper handling or because of the presence of defects, introduced during the manufacturing or assembly processes.

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