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44 SMT Magazine • May 2014 be carried out by knowing exact experimental setup. SmT References 1. Signal cables for event detection. 2. Maximum de-acceleration. 3. Peak at 10% of maximum acceleration. 4. Shape of acceleration curve. 5. Mechanical part which caches sledge to prevent double bounces. 6. Surface on which the sledge drops. 7. Board-Level Drop Test Method of Compo- nents for Handheld Electronic Products, JEDEC Standard 2003. 8. Standard Practice for Surface Wettability of Coatings, Substrates and Pigments by Ad- vancing Contact Angle Measurements, ASTM International. 9. Standard Test Method for Measurement of the Surface Tension of Solid Coatings, Sub- strates and Pigments using Contact Angle Mea- surements, ASTM International. 10. For more information on the Fowkes method, visit the Kruss website. Ronald frosch is a quality management specialist with aT&S (China) Co.,ltd. he is project manager for next-generation tech- nologies. guenther Mayr is a technology and quality manager at aT&S. he has specialized in hDi PCBs for the last 10 years. Manfred Riedler is global lab manager for aT&S. he has been with aT&S since 2001, eventually heading the research lab at aT&S Hinterberg in leoben, Austria. Samsung electronics announced a break- through synthesis method to speed the commer- cialization of graphene, a unique material ideally suited for electronic devices. Samsung advanced institute of Technology (SaiT), in partnership with Sungkyunkwan university, became the first in the world to develop this new method. "This is one of the most significant break- throughs in graphene research in history," said the laboratory leaders at SaiT's lab. "we expect this discovery to accelerate the commercialization of graphene, which could unlock the next era of consumer electronic technology." graphene has one hundred times greater electron mobility than silicon, the most widely used material in semiconductors today. It is more durable than steel and has high heat conductibility as well as flexibility, which makes it the perfect material for use in flex - ible displays, wearables and other next genera- tion electronic devices. Through its partnership with Sungkyungkwan university's School of advanced Materials Science and engineering, SaiT uncovered a new method of growing large area, single crystal wafer scale graphene. engineers around the world have in- vested heavily in research for the commercializa- tion of graphene, but have faced many obstacles due to the challenges associated with it. In the past, researchers have found that multi-crystal synthesis--the process of synthesizing small gra- phene particles to produce large-area graphene- -deteriorated the electric and mechanical proper- ties of the material, limiting its application range and making it difficult to commercialise. The new method developed by SaiT and Sungkyunkwan university syn- thesizes large-area graphene into a single crystal on a semi- conductor, maintaining its elec- tric and mechanical properties. The new method repeatedly syn- thesizes single crystal graphene on the current semiconductor wafer scale. samsung Develops Method to Commercialize Graphene feATuRe mECHaNICaL RELIaBILITy continues

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