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Effect of Soldering Parameters on Reaction Kinetics and Phase Transformations of SAC 305 Solder

Effect of Soldering Parameters on Reaction Kinetics and Phase Transformations of SAC 305 Solder

First and second layer intermetallicsAs technology becomes increasingly reliant on electronics, understanding the reliability of lead-free solder also becomes increasingly important. This research project focused on phase transformation kinetics with the lead-free solder SAC 305.

Today in the electronics industry, SAC 305 is the most widely used solder, making it a high priority to understand its long-term stability and performance in a variety of service conditions. Recent evidence has shifted the focus from thermal aging to reflow temperature and time above liquidus values during initial solder melting.

Read Article...

Authors:

T. Ryno, A. Kelley, J. Metzger, D. Medlin, C. Voyles, S. Richards

Organizations:

Department of Materials and Metallurgical Engineering,South Dakota School of Mines and Technology,

Radiance Technologies

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Aqueous Technologies Sonic One Stencil Cleaner

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Forum

Fiducials | Posted by SWAG

We build thousands of flex boards in array format. The fiducial quality for both global and local fids give us much trouble and it seems to be inherent of flex PCB mfg... »»

Wave soldering of PTH components with pitch 1.27mm... | Posted by BKS

Few months ago we were awarded with a project that use PTH components. We solder these components on Wave soldering process, but we have a lot of short circuits - more than 20%... »»

PCB bows after wave soldering | Posted by sid

I have been trying to find a solution to a defect I just noticed. After stencil printing and smt part placement on the secondary side of my boards, I run them through a wave soldering system.... »»

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Quad feeders...

Losing balls on BGA's after second side reflow...

100nF 0805 ceramic cap with 25 Ohm resistance? Why?...

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DAC EXTENDED 2010

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IPC A610 - Moving from Rev. "D" to Rev. "E" How Will it Impact Me?

Online Webinar | Wed, July 28 | Sponsored by: BEST Inc

BEST is offering a 45 minute webinar, held over the lunchtime hour, which will discuss the numerous significant changes instituted in the recent revision "E" of the IPC-A-610... »»

SEMICON West 2010

Trade Show/Exhibition | Tue, July 13 | Sponsored by: SEMI

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Industry Associations Events

SMTA

SMTA - Surface Mount Technology Association is a non-profit international association of companies and individuals (totalling 4,000) involved in all aspects of advanced electronics assembly, surface mount and related technologies. Membership Info | SMTA Certification | Bookstore

Next Event: Ohio Valley Expo & Tech Forum - July 15


IPC

IPC - Association Connecting Electronics Industries is a US-based trade association dedicated to the competitive excellence and financial success of its nearly 2,600 member companies which represent all facets of the electronic interconnection industry, including design, printed wiring board manufacturing and electronics assembly. Membership Info | Training & Certification Programs | Standards & Publications - Online Store

Next Event: Online Webinar: Non-Destructive Profiling Methods - July 13

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July 08, 2010

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