Ming-Ta Yang

Learn More
A new technique to de-embed the contributions of parasitic structures from transmission line measurements is presented and applied to microstrip lines fabricated in 90and 130-nm RF-CMOS technologies. De-embedded measurements are used to extract characteristic impedance, attenuation constant, group delay, and effective permittivity. The effective thickness(More)
This paper presents low voltage circuit topologies for 40-Gb/s communications in 90-nm and 65-nm CMOS. A retiming flip-flop implemented in two different 90-nm CMOS technologies employs a MOS-CML Master-Slave latch topology with only two vertically stacked transistors. Operation at 40 Gb/s is achieved by a combination of low and high-VT MOSFETs in the latch.(More)
This paper presents measured, simulated and calculated third-order intercept point (IP3) on a 90-nm RF CMOS technology. The IP3 sweet spot is actually at a <i>V</i> <sub>GS</sub> lower than zero <i>K</i> 3<i>g</i> <i>m</i> point. This <i>V</i> <sub>GS</sub> difference is attributed to the nonlinear output conductance and the cross terms using a(More)
Because of the popularity of portable devices and wireless LANs based on IEEE 802.11 standard, the mobility in wireless network environment become more important. There are two important issues to be addressed in order to support real-time service across wireless networks. One is high transmission data rate; the other is low handoff delay latency. In this(More)
1 Department of Computer Science and Information Engineering, St. John’s University, No. 499, Section 4, Tam King Road, Tamsui District, New Taipei City 25135, Taiwan 2 Graduate Institute of Computer and Communication Engineering, National Taipei University of Technology, No. 1, Section 3, Chung Hsiao East Road, Taipei 10608, Taiwan 3 Department of(More)
AIM To determine the risk of adverse events in rheumatoid arthritis (RA) patients treated with biological disease-modifying anti-rheumatic drugs (bDMARD) versus traditional DMARDs (tDMARD). METHOD This retrospective study used Taiwan's National Health Insurance Research Database to capture data for adult patients diagnosed with RA between 1 January 1999(More)
-The purpose of this paper is to solve the problem of protecting aerial lines from high impedance faults (HIFs) in distribution systems. This investigation successfully applies 3I0 zero sequence current to solve HIF problems. The feature extraction system based on discrete wavelet transform (DWT) and the feature identification technique found on statistical(More)
The low-loss single semi-coaxial (S-SC) and differential semi-coaxial (D-SC) interconnects based on a standard 0.18-gm CMOS process are presented for the first time. Compared to the attenuation constant (a) reported for microstrip and CPW interconnects in CMOS process, the S-SC line shows the lowest loss of 0.90 dB/mm at 50 GHz. The D-SC line also presents(More)
1 Department of Computer Science and Information Engineering, St. John’s University, No. 499, Section 4, Tam King Road, Tamsui District, New Taipei City, 25135, Taiwan 2 Graduate Institute of Computer and Communication Engineering, National Taipei University of Technology, No. 1, Section 3, Chung-hsiao E. Road, Taipei 10608, Taiwan 3 Department of Marketing(More)
This work examines the intermodulation linearity of 90 nm RF CMOS using IP3 measurement, BSIM4 based simulation, and first order theory. V<sub>GS</sub>, V<sub>DS</sub>, and device width dependences are examined. Guidelines to accurately identifying the sweet spot biasing current for larger devices used in RFIC design are provided.