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Electromigration-induced accelerated consumption of Cu pad in flip chip Sn2. 6Ag solder joints

WJ Deng, KL Lin, YT Chiu… - … Conference (ECTC), 2011 …, 2011 - ieeexplore.ieee.org
... The uneven consumption morphology of Cu pad formed after reflow results in local current
crowding at the cathodic pad side. ... (a) Before current stressing, (b) relatively uneven consumption
of Cu pad, (c) small concavities formation, (d) large concavity formation. Fig. ...
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Method of fabricating polishing pad having detection window thereon

WC Shih, YC Chang, MK Chu… - US Patent 7,875,335, 2011 - Google Patents
... What is claimed is: 1. A polishing pad, comprising: a transparent part having an uneven side
surface, the uneven side surface having a plurality of projections, a plurality of recessions, or
combination thereof, wherein the profile of the uneven side surface is selected from the ...
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Protective pad for use with an orthopedic brace

DA O'keefe… - US Patent 7,883,486, 2011 - Google Patents
... A conformable pad for use under an orthopedic brace comprising: 5 an upper edge of the pad
having a substantially straight dimension configured to be oriented as the top of the pad; a lower
edge of the pad having an uneven dimension con- figured to be oriented as a bottom ...
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Optimization of CMP Pad Surface by Laser Induced Micro Hole

[PDF] from skku.eduJC Yang, H Kim, CG Lee, HD Lee… - Journal of The …, 2011 - link.aip.org
... The surface of the porous pad has uneven profiles called as asperities, which affect the fluid flow
inside the pad–wafer gap. ... Thus, the simulation results support the experimental results in defect
reducing factors, the micro hole and the uneven surface of porous-type pad. ...
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Study on Design and Test of Flexible Uniform Pressure Loading Device

H Wang, S Li, X Yue… - Advanced Science Letters, 2011 - ingentaconnect.com
... The results show that the effect of flexible uniform pressure loading device is effective
and depend on the Shore hardness of load transfer rubber pad. The model stress field
is very uneven with rigid thruster loading on concave surface. ...

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