Alpha to Present on Tin-Copper Alloys and Flip Chip LEDs at SMTA China South Technical Conference

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Alpha Assembly Solutions, the world leader in the production of electronic soldering materials, will be presenting two technical papers at SMTA China South Technical Conference on August 30, 2017.

The first technical paper, titled “Comparing the Performance of Engineered Tin-Copper Alloys in Selective Soldering,” will be presented by Jackson Chan, Senior Technical Services Manager of Alpha Assembly Solutions Southern China.  This paper details an experiment that compares the hole fill performance of two engineered tin-copper alloys in a selective soldering process. The test vehicle design incorporates features that are optimized for the selective soldering process. Two experiments are performed – one uses no preheat and no inner layer connections at the hole and the second uses preheat and thermally challenging inner layer connections. Engineered tin-copper solder is commonly chosen for use in RoHS-compliant selective soldering applications due to the cost advantage compared to silver-bearing alternatives. The added metals alloyed with eutectic tin-copper provide benefits that can differentiate various alloys in the tin-copper family.

The second paper, titled “Flip Chip LED Assembly by Solder Stamping Pin-Transfer,” will be presented by Vincent Liu, LED Application Engineer of Alpha Assembly Solutions in Taiwan.  The paper will focus on displaying Alpha products dedicated for flip-chip LED die attach. These fine pitch capable materials (solder, sintered silver and conductive adhesives) have been put through LED packaging processes (like pin transfer / stamping and stencil printing – including 3D stencil, Dispensing etc) at Alpha’s dedicated LED packaging labs. LED packaging and LED module assembly makers who use flip chip for automotive, backlight and general lighting applications will find this presentation very relevant. 

Wednesday, August 30, 2017

Paper 1: 10:30am - 11:05am
Paper 2: 14:55pm - 15:30pm

Booth 1T11, Hall 1, Shenzhen Convention & Exhibition Centre, Shenzhen, China

To learn more about Alpha Assembly Solutions’ vast product offering and capabilities, please visit

About Alpha Assembly Solutions

Alpha Assembly Solutions, a MacDermid Performance Solutions Business, is the global leader in the development, manufacturing and sales of innovative specialty materials used in a wide range of industry segments, including electronics assembly, power electronics, die attach, LED lighting, photovoltaics, semiconductor packaging, automotive and others.

With a unique global presence in over 30 locations throughout the Asia Pacific, Americas and Europe regions, Alpha supplies a full line of ALPHA® electronics assembly material products, including Solder Paste, Exactalloy Solder Preforms, Cored Solder Wire Solder, Wave Soldering Fluxes, Bar Solder Alloys, and Stencils.  It offers die attach product technologies to the power electronics segment in its Argomax, Atrox and Fortibond brands.

For the LED segment, Alpha offers its Lumet products covering applications from die attach to systems assembly in the LED manufacturing process.  Alpha also offers product technologies for the Photovoltaic segment, including high performance liquid fluxes and solder alloys for producing standard ribbon and bus bar, as well as, solder pastes, cored wire, conductive adhesives and preforms for use in PV module assembly. Also, Alpha’s Advanced Materials unit is the leader in electronic polymers and solder materials for semiconductor packaging applications. 

Since its founding in 1872, Alpha has been committed to developing and manufacturing the highest quality specialty materials. For more information, click here.  


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