Industry Directory | Manufacturer
Shuttle Star Technology designs and builds advanced off-line 2.5D&3D x-ray inspection systems for solder joint and final assembly test inspection in SMT&EMS. It uses world-class X-ray techniques with advanced defect detection.
Aluminium pcb depaneling machine http://www.vcutpcbdepaneling.com Email?sales@yushunli.com evaliu@yushunli.com Website?http://www.hk-yush.com /http://www.pcbdepanelingmachine.com http://www.vcutpcbdepaneling.com / http://www.yushunli.com / http://www
Technical Library | 2014-10-30 01:48:43.0
The ultimate life of a microelectronics component is often limited by failure of a solder joint due to crack growth through the laminate under a contact pad (cratering), through the intermetallic bond to the pad, or through the solder itself. Whatever the failure mode proper assessments or even relative comparisons of life in service are not possible based on accelerated testing with fixed amplitudes, or random vibration testing, alone. Effects of thermal cycling enhanced precipitate coarsening on the deformation properties can be accounted for by microstructurally adaptive constitutive relations, but separate effects on the rate of recrystallization lead to a break-down in common damage accumulation laws such as Miner's rule. Isothermal cycling of individual solder joints revealed additional effects of amplitude variations on the deformation properties that cannot currently be accounted for directly. We propose a practical modification to Miner's rule for solder failure to circumvent this problem. Testing of individual solder pads, eliminating effects of the solder properties, still showed variations in cycling amplitude to systematically reduce subsequent acceleration factors for solder pad cratering. General trends, anticipated consequences and remaining research needs are discussed
Industry News | 2014-09-22 10:40:15.0
YINCAE Advanced Materials, LLC is pleased to announce the release and availability of BP 256. It is a part of the innovative SMT 256/266 series, solder joint encapsulant.
Industry News | 2010-03-03 14:29:02.0
OK International (www.okinternational.com) has launched a new soldering system for PV tabbing and bussing applications proven to reduce micro cracking. The PS900 with specially designed hoof tip geometry optimizes the power delivered to the solder joint while it’s temperature-sensitive heater ensures low temperature soldering thus minimizing thermally induced stresses on cell surfaces.
pcb separator - YSVC 1 http://www.pcbpunchingmachine.com Email?sales@yushunli.com evaliu@yushunli.com http://www.vcutpcbdepaneling.com Website?http://www.hk-yush.com /http://www.pcbdepanelingmachine.com http://www.vcutpcbdepaneling.com / http://www.y
Industry News | 2014-06-10 11:59:03.0
(Albany, NY) June 10, 2014. YINCAE Advanced Materials, LLC is pleased to announce the availability of a series of new encapsulant products that enable greater production temperature flexibility for microchips with different alloy applications.
Industry News | 2006-04-17 11:14:44.0
Indium Corporation�s NF260 No-Flow Underfill was awarded the 2006 EM Asia
Technical Library | 2014-07-10 17:37:18.0
This paper studies and compares the effects of pull–pull and 3-point bending cyclic loadings on the mechanical fatigue damage behaviors of a solder joint in a surface-mount electronic package.The comparisons are based on experimental investigations using scanning electron microscopy (SEM) in-situ technology and nonlinear finite element modeling, respectively. The compared results indicate that there are different threshold levels of plastic strain for the initial damage of solder joints under two cyclic applied loads; meanwhile, fatigue crack initiation occurs at different locations, and the accumulation of equivalent plastic strain determines the trend and direction of fatigue crack propagation. In addition, simulation results of the fatigue damage process of solder joints considering a constitutive model of damage initiation criteria for ductile materials and damage evolution based on accumulating inelastic hysteresis energy are identical to the experimental results. The actual fatigue life of the solder joint is almost the same and demonstrates that the FE modeling used in this study can provide an accurate prediction of solder joint fatigue failure.
Industry News | 2016-08-19 05:00:52.0
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