September Issue of SMT Magazine Available Now


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The September 2017 issue of SMT Magazine is available now. There are many challenges when it comes to the rework and repair of PCB assemblies. This month, our technical authors highlight the strategies they suggest to improve the process.

Read the September issue of SMT Magazine, now on the virtual newsstand and available for delivery in your e-mailbox by subscribing here.

Save the PDF version to your devices for future reference.

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PCB Pad Repair Techniques

01/08/2018 | Bob Wettermann, BEST Inc.
There are a variety of reasons behind pads getting "lifted" completely or partially from the laminate of a PCB. Per the just revised IPC-A-610 Revision G, a defect for all three classes occurs when the land is lifted up one or more pad thicknesses. Lifted pads can occur when a device has been improperly removed or there is a manufacturing defect in the board construction. In any case, as with any repair, the ultimate decision on the ability to repair the pad lies with the customer.

Koh Young Europe Ready for Next Year, and Beyond

12/18/2017 | Andy Shaughnessy, I-Connect007
Harald Eppinger, managing director of Koh Young Europe, speaks with I-Connect007 Managing Editor Andy Shaughnessy about the demands of the European market, the company's long-standing success with its solutions, and the future of Koh Young Europe.

Solder Printing Process Inputs Impacting Distribution of Paste Volume

12/14/2017 | Marco Lajoie and Alain Breton, C-MAC Microelectronics
The volume of solder deposition, like any process, has variations that may be characterized by a statistical distribution curve, whether normal or non-normal. As complexity, density, cost and reliability requirements increase, there may be value in narrowing the distribution curve. It is common sense that less variation serves the interest of quality of the more complex and dense circuit boards.



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