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		Technical Articles: ESS (Environmental Stress Screening) Articles: Comparison Testing of Shock vs. Vibration ESS Systems Principal Investigator: Dr. Hong-sun Liu, Quanta Laboratories Contributors: Larry Foshee, Motion Engineering, Ron Weglinski, Susan Mercovich, Greg Wilterdink, Transistor Devices Inc. It is well known that Environmental Stress Screening (ESS) is a very effective tool to precipitate the weaknesses of a product. Currently however, the most available equipment for this process is the pneumatic hammer (shock) system. The author has developed a new ESS system that utilizes a skewed fixture together with an electromagnetic shaker system (or a hydraulic shaker system) in conjunction with a fast ramping chamber (Ref 1). The advantages of this system are... View Full Article HAST (Highly Accelerated Stress Test) Articles: How to Select a HAST Chamber A Comparison of HAST to Conventional THB Testing Highly Accelerated Stress Test (HAST) For Low-cost Flip Chip on Board Technology Electrochemical Migration...Under Highly Accelerated Stress Conditions Reliability Tests of Ultrasonic Bonding Methods Using HAST and THB HAST Applications: Acceleration Factors and Results for VLSI Components Hastest Solutions Advantages: Learn more about the benefits of working with Hastest Solutions.
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