Tsinghua University – TechConnect Briefs

Passive Elements Modeling in Microwave/Millimeter-wave application

Wang Y., Yao J., Luo J., Tang Y., Tsinghua University, CN

Passive elements (e.g., transmission line, transformer and balun) are widely used in Microwave/ Millimeter-wave (MMW) applications. Compared with time-consuming Electromagnetic (EM) simulation, equivalent-circuit compact models for these passive elements are more preferable for IC designers. [...]

Research on Non-linear Vibration in Micro-machined Resonant Accelerometer

Shuming Z., Yunfeng L., Fan W., Jingxin D., Tsinghua University, CN

This paper analyses the non-linear vibration of the Silicon Oscillating Accelerometer (SOA) by system modeling and simulation, and the optimization designation to weaken the influence of the nonlinear vibration are proposed. With the decreasing of [...]

Experimental analysis of the MEMS Capacitive accelerometer’s shock resistibility

Tao Y., Liu Y., Dong J., Tsinghua University, CN

The shock resistibility of MEMS device has been an urgent issue in the field of consumer electronics, automotive industry and special military applications. The paper analyses experimentally the shock resistibility of a typical MEMS capacitive [...]

Fetal Movement Detection Based on MEMS Accelerometer

Minjie L., Yongkang T., Yunfeng L., Song Y., Jingxin D., Tsinghua University, CN

Fetal movement is a significant indication of fetal well-being. Standard clinical fetal monitoring technologies include ultrasound imaging and cardiotocography. Both have limited prognostic value and require many health resources. We have recently developed a low-cost, [...]

DIRECT: An Efficient Optimization Scheme for Mask Generation Using Inverse Lithography

Xiong W., Tsai M-C, Zhang J., Yu Z., Tsinghua University, CN

Resolution Enhancement Technologies (RETs) are widely used to cope with the severe optical effects that are manifests in sub-wavelength lithography. Inverse Lithography Technique (ILT) has recently been proposed [1-3] as an effective RET for sub [...]

Thermal conductivity enhancement of carbon nanotube composites

Deng F., Zheng Q.-S., Tsinghua University, CN

Simple models for the thermal conductivity enhancements of carbon nanotube (CNT) composites are presented as analytical functions of volume fraction, anisotropic thermal conductivities, aspect ratio, non-straightness, and interfacial thermal resistance of the CNTs. The model [...]

Affiliations: Tsinghua University