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An on-chip buck converter with 3D chip stacking is proposed and the operation is experimentally verified. The manufactured converter achieves a maximum power efficiency of 62% for an output current of 70mA with a switching frequency of 200MHz and a 2x2mm on-chip LC output filter in 0.35mum CMOS. The use of glass epoxy interposer to increase the maximum power efficiency up to 71.3%, and the power efficiency...
Thick film resistance and capacitance elements have recently come to be used in miniaturized and lightweight electronic instruments. The thick-film magnetic semiconductor (IMS), with a thickness of 80 ??m, is a sintered substance based on ferrite powder and a ruthenium compound. The TMS has both the ferromagnetic and the semiconducting properties of the ferrite and the ruthenium compound. The TMS...
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