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A 25 Gbit/s clock and data recovery (CDR) circuit with 1:2 demultiplexer for 100 Gbit/s Ethernet (100 GbE) optical interconnects has been designed and fabricated in Taiwan Semiconductor Manufacture Company (TSMC) 65nm complementary metal-oxide-semiconductor (CMOS) technology. A novel quadrature voltage-controlled-oscillator (QVCO) structure adopts two pairs of transconductance cell and inverters to...
In the secondary hardening reaction in ultrahigh strength steel of high Co-Ni alloy, the needle-shaped precipitating carbide is the main strengthening phase. Particular attention has been paid to the nucleation, growth and coarsening of the precipitate and its interface with the ferrite matrix. High resolution transmission electron microscopy observations show that when tempered at a low temperature...
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