Presented at IPC Printed Circuits Expo 2002, Long Beach Convention Center, Long Beach, CA, March 24-28, 2002

Defining Accelerated Test Requirements for PWBs: A Physics-Based Approach

Kevin D. Cluff
Honeywell Air Transport

Michael Osterman
University of Maryland
College Park, MD 20742


Typically thermal cycle test requirements for printed wiring boards (PWBs) are somewhat arbitrarily established for a particular product. Many programs simply default to a standard test without much quantitative analysis. With product reliability and cost management pressures, developing realistic accelerated test criteria is vital. The procedure described in this paper is based on substantial measured field environment data, a validated acceleration model with a generalized product definition, and statistically-based test requirements. While the particular example is for commercial air transport avionics, the proposed procedure is easily extensible to other high reliability applications.

Complete article is available to CALCE Consortium Members


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