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Experts Questions
Production Floor Temperature and Humidity Loggers
Early this month we had a customer audit. One of the findings regards the environment measurements in our assembly area. They noted that we only have one temperature/humidity logger and it was considered ...
Responses by:
Gary Freedman, President, Colab Engineering
Peter Biocca, Senior Market Development Engineer, Kester
Jerry Karp, President, JSK Associates
Paul Austen, Senior Project Engineer, Electronic Controls Design Inc
Fritz Byle, Process Engineer, Astronautics
Terry Munson, President/Senior Technical Consultant, Foresite
Mark Waterman, Engineer / Trainer, Electronic Controls Design, Inc. (ECD)
Test for Flux Penetration
What is good test for flux penetration through the plated hole barrel?
Responses by:
John Norton, Eastern Manager, Vitronics Soltec
Mark Waterman, Engineer / Trainer, Electronic Controls Design, Inc. (ECD)
Fritz Byle, Process Engineer, Astronautics
Paul Austen, Senior Project Engineer, Electronic Controls Design Inc
Leo Lambert, Vice President, Technical Director, EPTAC Corporation
Requirement for Toe Fillets
I am a junior inspector at an electronics manufacturing service. I ran into a little bit of confusion regarding what is the requirement for a toe fillet. Figure 8-89 of the IPC gives a requirement ...
Responses by:
Leo Lambert, Vice President, Technical Director, EPTAC Corporation
T.J. Hughes, Manufacturing Engineer, Esterline Interface Technologies
Eric Bastow, Senior Technical Support Engineer, Indium Corporation
Gary Freedman, President, Colab Engineering
Cleaning to Remove Solder Balls
What is the best board cleaning method for removing solder balls from PCBs? It has been suggested that we use a "spray in air system," as the only sure method.
Responses by:
Paul Dickerson, Supply Chain Engineer, Matric Group
Steve Stach, President, Austin American Technology
Leo Lambert, Vice President, Technical Director, EPTAC Corporation
Terry Munson, President/Senior Technical Consultant, Foresite
John Norton, Eastern Manager, Vitronics Soltec
Mike Konrad, President, Aqueous Technologies
Bill Schreiber, President, Smart Sonic Corporation
Umut Tosun, Application Technology Manager, Zestron America
Initial Screen Print Test Board
Is it recommended to print one cycle before printing the first production board? I could use a scrap board or blank plastic card for the first print.
Responses by:
Georgian Simion, Engineering and Operations Management, Independent Consultant
Fritz Byle, Process Engineer, Astronautics
Neil Poole, Senior Applications Chemist, Henkel Electronics
Kishan Sarjoo, Process Engineering Manager - Electronics, Altech UEC, South Africa
Tony Lentz, Field Applications, FCT Assembly
Bill Coleman, Vice President Technology, Photo Stencil
Leo Lambert, Vice President, Technical Director, EPTAC Corporation
Edithel Marietti, Senior Manufacturing Engineer, Northrop Grumman
Eric Bastow, Senior Technical Support Engineer, Indium Corporation