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Flip chip technology is now being introduced in PoP(Package on Package) packages for the digital consumer electronics such as digital still cameras and mobile phones. PoP reduces the component height and improves the electrical performance. A MPS-C2(Metal Post Solder Chip Connection) method was developed for ultrafine pitch flip chip interconnections in mobile applications. A bare die with Sn/Ag-solder-capped...
The recent requirements for achieving higher memory density in a smaller package size have adopted 3D packaging of thin dies in a single package. However, increasing the number of dies in 3D stacking is limited by increasing the cost due to decrease die stacking yield. The known good package stacking can be solution to overcome such yield loss. In this study, a novel Fan-in PoP solution proposed,...
Barium strontium titanate (BST) thin film capacitors are being intensively investigated for tunable microwave devices, because of their high permittivity, low dielectric loss in the microwave region and field dependent permittivity. This study investigates the effect of rare earth elements doping on the electrical properties of BST thin film capacitors. BST thin films were deposited by an RF magnetron...
The drop reliability of mobile electronic products has become a major concern recently. Especially, system-in-package (SIP) like stacked-die-package and package-on-package may lead to increased the stress during drop impact due to their complicate structure. In this study, evaluation and prediction of the drop reliability for SIP was performed using modeling techniques. 3D-dynamic nonlinear finite...
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