Fine Tuning The Stencil Manufacturing Process And Other Stencil Printing ExperimentsAuthors: Chrys Shea and Ray Whittier
Company: Shea Engineering Services and Vicor Corporation – VI Chip Division
Date Published: 10/13/2013 Conference: SMTA International
A new set of studies was launched to focus on the materials themselves, with the purpose of optimizing their performance on the assembly line. Using a similar test vehicle as the prior experiments, DOEs characterized key aspects of the stencil manufacturing process by varying the laser cutting parameters and coating materials. As the scope of the DOE grew, it also included evaluation of new materials and a comparison of microBGA aperture designs. Eventually, additional runs were added to investigate the effects of nanocoating on wipe frequency and compare two different stencil cutting processes.
Results of the prior tests are reviewed, and the new test vehicle, experimental setup and results are presented and discussed.
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