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Experts Questions
Copper Dissolution Rate
Does anyone have data on the rate of copper dissolution in solder? Have any studies been done on time/temperature and amount of copper. It's easy to claim that SnPb dissolves Cu but everybody has a different opinion on the rate and amount.
Responses by:
Mike Scimeca, President, FCT Assembly
Leo Lambert, Vice President, Technical Director, EPTAC Corporation
Eric Bastow, Senior Technical Support Engineer, Indium Corporation
Jack Fisher, Chairman of the IPC Technology Roadmap Committee, Interconnect. Technology Analysis Inc.
Kevin Valentine, Sales and Service Manager, Americas, Nordson SELECT
Fritz Byle, Process Engineer, Astronautics
What Is This Contamination?
These images are from a failed position-sensor in our power plant. It is potted with some kind of epoxy-compound because of vibration-issues. We don't think the potting is done by the manufacturer ...
Responses by:
Georgian Simion, Engineering and Operations Management, Independent Consultant
Renee Michalkiewicz, General Manager, Trace Laboratories
Greg York, Technical Sales Manager, BLT Circuit Services Ltd
Leo Lambert, Vice President, Technical Director, EPTAC Corporation
Brien Bush, Manufacturing Applications Specialist, Cirtronics Corp.
Tod Cummins, Director of Corporate Quality Assurance, Delta Group Electronics Inc.
Mark Northrup, VP of Advanced Technical Operations, IEC Electronics
Tony Lentz, Field Applications, FCT Assembly
Paul Austen, Senior Project Engineer, Electronic Controls Design Inc
Fritz Byle, Process Engineer, Astronautics
Edithel Marietti, Senior Manufacturing Engineer, iDirect
Gerard O'Brien, President, S T and S Testing and Analysis
How to Detect Counterfeit Components?
I'm exploring issues with counterfeit components and would like to know the best technologies available to detect counterfeit devices. Can X-ray or other inspection solutions detect counterfeit components?
Responses by:
Peter Greenland, VP Sales & Marketing, Pycon Inc.
Dr. Bill Cardoso, CEO, Creative Electron
Dr. Craig D. Hillman, CEO & Managing Partner, DfR Solutions
Mark Northrup, VP of Advanced Technical Operations, IEC Electronics
Edithel Marietti, Senior Manufacturing Engineer, iDirect
Terry Munson, President/Senior Technical Consultant, Foresite
Application Using No-Clean and Water Soluble Fluxes
If we use a no-clean solder paste for SMT, is it acceptable to use a water-soluble solder wire for subsequent processes (soldering through hole components by hand, not touching up ...
Responses by:
Charlie Pitarys, Technical Expert Sales Support, Kyzen Corporation
Leo Lambert, Vice President, Technical Director, EPTAC Corporation
Gary Freedman, President, Colab Engineering
Tony Lentz, Field Applications, FCT Assembly
Eric Bastow, Senior Technical Support Engineer, Indium Corporation
Michael Kaminsky, Sr Fiald Applications Support Engineer, Kester Inc.
Edithel Marietti, Senior Manufacturing Engineer, iDirect
Fritz Byle, Process Engineer, Astronautics
Greg York, Technical Sales Manager, BLT Circuit Services Ltd
How Many Fiducials Pre Solder Paste Stencil?
We manufacture solder paste stencils for a variety of customers. We have seen as many as 180 fiducials per stencil with a step and repeat. Is this excessive? How many fiducials are recommended for a typical solder paste stencil?
Responses by:
Stephanie Nash, Director, Integrated Ideas & Technologies, Inc.
Kishan Sarjoo, Process Engineering Manager - Electronics, Altech UEC, South Africa
T.J. Hughes, Manufacturing Engineer, Esterline Interface Technologies
Scott Wischoffer, Marketing Manager, Fuji America Corporation
Bill Coleman, Vice President Technology, Photo Stencil