SMTA International Conference Proceedings

Solder Paste Qualification Testing for EMS Production

Authors: Chrys Shea and Raymond Lawrence
Company: Shea Engineering Services and 4FRONT Solutions
Date Published: 9/17/2017   Conference: SMTA International

Abstract: In the world of solder pastes, one size does not fit all, which is why so many different formulations exist. The myriad of options can be overwhelming, and matching the right product to the operation can be confusing, time consuming and costly.

When a small EMS provider determined it was time to update the SMT process chemistry, they needed to develop a test program that they could execute efficiently while keeping production running and costs under control. The result is a consolidated test plan that gauges key solder paste properties and requires less than one shift of line time per product evaluated.

This paper reviews the test plan, data collection and analysis processes, and presents the results. It discusses some of the issues encountered during test development and their resolutions or workarounds. Finally, it interprets the findings as they apply to the operation, the product types and customer needs.

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