13th IEEE International Electronics Manufacturing Technical Symposium, pp. 64-67, 1992.

Role and Measurement of Trimming Shock on Component Lead

D. Wolfovitz, D. Barker, and M. Pecht


Lead trimming is a standard operation performed during printed circuit board assembly. The trimming activity is generally conducted on discrete components before attachment to the board, or after solder attachment of through hole mounted components. The purpose of the trimming operation is to cut any excess lead to a specified length. This paper describes the detrimental effects of trimming shock on some component types and presents a method for qualitative measurement of trimming shock..

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