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With the development of the ultrahigh voltage (UHV) and extra high voltage (EHV) electric power industry in China, gas insulated substation (GIS) is applied widely. Very fast transient overvoltage (VFTO) caused by disconnector operations in GIS may damage the insulation of equipment due to its high frequency and amplitude. As one of the main overvoltage protection equipments, the protection behavior...
To improve via yield and reliability, redundant via insertion is a highly recommended technique proposed by foundries. However, inserting a redundant via can create extra open critical area between nets. A novel redundant via insertion method is proposed in this paper. In this work, we first address the problem of incremental open critical area for redundant via insertion, and then present an open...
Nonconductive film (NCF) is more and more used for chip-on-glass (COG) bonding instead of anisotropic conductive film (ACF), due to its advantages of finer bump pitch and cost reduction. However, the chemical reaction of NCF requires, and experiences show that excessive warpage and residual stress will usually be induced because NCF curing requires higher temperature and bonding pressure than ACF,...
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