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Most of the aged high-voltage (HV) power capacitors are the oil-immersed paper capacitors in Japan. Hence, it is necessary to establish an on-site partial-discharge (PD) diagnosis of the oil-immersed paper capacitors. The capacitance of the capacitors is very large, so it is difficult to apply HVAC to the capacitors. Therefore, it is difficult to perform the PD measurements of the capacitors. These...
A novel cylinder-type metal-insulator-metal (MIM) capacitor in porous low-k film (CAPL) is proposed for embedded DRAMs (eDRAMs). The CAPL removes long bypass-contacts (BCT) with high resistance, which have been used to connect transistors with Cu interconnects by way of the MIM capacitor layer. A key technical challenge for the CAPL integration is control of pore structure in the low-k film to avoid...
A DC/DC converter has been optimally designed to introduce it into a 400V DC distribution system. It has been optimal designed by using a developed tool to maximize the output power density (OPD) of the converter, considering boundary conditions that the 400V DC distribution system requires. The developed tool enables power loss of magnetic materials and high-speed semiconductor power devices to be...
Scalable TDDB model for large-area MIM capacitors is proposed to guarantee the reliability, limited by the defect-related extrinsic failure mode. Analysis based on this model leads to the guideline for the MIM design such as the dielectric thickness and capacitor area to achieve lifetime required for large decoupling capacitance on high-performance processors. Proposing TDDB model reveals that highly...
This paper discusses the test results obtained on the samples of paper capacitors impregnated with alkyl-naphthalene (synthetic aromatic hydrocarbon) oil, which were developed for filters for use in a Japan's first high-voltage dc transmission system between Honshu and Hokkaido. Many of the tests were designed to simulate the actual modes of voltage stresses, which the capacitors would experience...
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