Yang Weiming

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After the shortage of the conventional lateral structure of SiGe HBT was analyzed, A new lateral structure was presented. In the meantime, the new fabrication process named buried metal self-aligned technique was designed. The measured frequency features show that the cut-off frequency f<sub>T</sub> of the device up to 12.3GHz and the maximum oscillation(More)
The expression of multidrug resistant proteins in bladder cancer and clinical implication was studied. Expression of multidrug-associated protein (MRP), P-glycoprotein (P-gp), P53 and Bcl-2 proteins were detected by using immunohistochemical method in 40 specimens of bladder transitional cell carcinoma. The results showed that the positive rate of MRP,(More)
A direct-coupled low noise amplifier was designed and fabricated on a Teflon substrate, using packaged SiGe HBTs BFP420 and chip type passive components. This SiGe LNA has the advantages such as the wide bandwidth (2.5GHz), the low noise figure (NF /spl les/ 2.23dB), the high power gain (S21 /spl ges/ 26.7dB), the input and output VSWR are all less than 2.(More)
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