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SMT, PCB Electronics Industry News

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AIM’s Karl Seelig to Discuss Overcoming Challenges of QFNs at SMTAI 2011

Sep 28, 2011

Karl Seelig, AIM's Vice President of Technology,

Karl Seelig, AIM's Vice President of Technology,

AIM, a leading global manufacturer of solder assembly materials for electronics assembly, PC fabrication, component manufacturing and other industries, announces that Karl Seelig, Vice President of Technology, will present a paper titled “Overcoming the Challenges of QFNs” at the upcoming SMTA International Conference & Exhibition, scheduled to take place October 18-19, 2011 at the Fort Worth Convention Center in Fort Worth, TX. The presentation will be held during Session AAT1, titled “QFN Assembly and Reliability,” which will take place Tuesday, October 18, 2011 from 10:30 a.m.-12:30 p.m. in room 202B.

Over the past several years, handheld device designers and manufacturers have been driven by consumers to fit more functionality into smaller packages. Due to the demand for these devices, the electronics assembly industry has seen a decrease in the available space on these assemblies as well as an increase in their density. In response to these demands, there has been a steady increase in the use of packages known as Quad Flat Pack No Lead (QFN).

This presentation will review the common challenges of QFN implementation and determine the keys to overcoming these issues. It will discuss how the stencil design, solder powder particle size, solder paste volume and stencil thickness all play a significant role in successful implementation of the QFN.

In his more than 30 years of industry experience, Karl has written and presented numerous technical papers on topics including lead-free electronics assembly, no-clean flux technology, assembly and process optimization, inspection, and metallurgical studies. Mr. Seelig serves as the Chairman of the IPC Solder Products Value Council and has been involved in the development of material specifications under IPC. He also has received numerous patents in soldering technology, including four lead-free solder alloys.


Headquartered in Montreal, Canada, AIM is a leading global manufacturer of assembly materials for the electronics industry. The company produces solder paste, liquid flux, cored wire, bar solder, adhesives, preforms, and specialty alloys such as indium and gold for electronics assembly, PC fabrication, component manufacturing and other industries.

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