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A 2.5D Integrated Voltage Regulator Using Coupled-Magnetic-Core Inductors on Silicon Interposer
2013
IEEE Journal of Solid-State Circuits
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An integrated voltage regulator (IVR) is presented that uses custom fabricated thin-film magnetic power inductors. The inductors are fabricated on a silicon interposer and integrated with a multi-phase buck converter IC by 2.5D chip stacking. Several inductor design variations have been fabricated and tested. The best performance has been achieved with a set of eight coupled inductors that each occupies 0.245 and provides 12.5 nH with 270 DC. With early inductor prototypes, the IVR efficiency
doi:10.1109/jssc.2012.2221237
fatcat:alsqnamjnbf75fi2rq56hqhzqu