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Bo Li

Biography

Enrollment Date: 2009

Graduation Date：2012

Degree：M.S.

Defense Date：2012.05.25

Advisors：Liji Wu

Department：Institute of Microelectronics，Tsinghua University

Title of Dissertation/Thesis：Protocol Analysis and Circuit Design of RFID System Based on Spread Spectrum Technique

Abstract:
As the process of integrated circuits ameliorates and application environment becomes more and more complex, the reliability demands of integrated circuits by industry are increasingly rigorous, especially in automobile electronics area. The research content of this paper is to design tire pressure monitoring system based on previous research group’s works, and the involved circuit architecture and scheme provide high-reliability protection to system control chip. This paper includes two main parts: ESD protection and electromagnetic compatibility. The process used for this chip is 0.35um from Shanghai Advanced Semiconductor Co., LTD, which is independently researched and developed totally. Qualified chip ESD protection scheme must be aligned with the requirements of robustness, effectiveness, conduction velocity, transparency and so on. Robustness means ESD protection structure which can provide enough protection to the internal architecture. Effectiveness means to provide reliable protection for the inside circuits around the waistline of ESD protection architecture. Besides, the protection architecture must open swiftly to discharge static current when the electrostatic happens. At the same time, it will not affect the inside circuits when the ESD protection architecture is closed. This paper design chip ESD protection scheme according to the requirement mentioned above. The scheme mainly uses diodes and NMOS ESD protection architecture. Meanwhile, it includes the preliminary circuit simulation and draw layout in accordance with the ESD protection requirements. Finally, it is successful taped-out. According to the result of TLP test, this design can provide at least 6kV ESD protection ability. After analyzing the test results, a resolution is proposed in order to further improve the electrostatic protection ability. EMC protection scheme is based on the ADC (Analog-to-Digital Converter) interface inside the tire pressure monitoring system control chip. The input of the interface circuit is the output of pressure sensor, which is affected badly. Meanwhile, the resolution of ADC is very high, which has strict request for the fluctuation interface output signals. Therefore, it is necessary to design anti-electromagnetism interference for the interface circuits. This paper is to design electromagnetic interference for the current mirror and Op-amp in the interface circuits. Also this design can be used as reference for electromagnetic compatibility design of the rest module. The electromagnetic compatibility of current mirror adopted 4 transistors architecture. For the Op-amp, there is a 2pF capacitor paralleled between gate and source. During the simulation, applying a sine signal, with amplitude of 56uA and frequency of 100KHz, to the input of current mirror. A sine signal, with amplitude of 2V and frequency of 1GHz, is also applied to the input of Op-amp. The simulation result shows the fluctuation of interface circuits is under ±3.5mV, which meets the requirement of ADC.

Publications

Papers：：

[1] Zipeng Chen,Wei Deng,Haikun Jia,Yibo Liu,Jianxi Wu,Pingda Guan,Jinyu Zhu,Luhong Mao,Zhihua Wang, Baoyong Chi, A U-Band PLL Using Implicit Distributed Resonators for Sub-THz Wireless Transceivers in 40 nm CMOS, IEEE Transactions on Circuits and Systems II: Express Briefs, Vol.67, No.9, pp. 1574 - 1578, 2020.

[2] Xiangyu Meng,Baoyong Chi,Yibo Liu,Taikun Ma,Zhihua Wang, A Fully Integrated 150-GHz Transceiver Front-End in 65-nm CMOS, IEEE Transactions on Circuits and Systems II: Express Briefs, Vol.66, No.4, pp. 602 - 606, 2019.

[3] Xinhan Lin,Shouyi Yin,Fengbin Tu,Leibo Liu,Xiangyu Li,Shaojun Wei, LCP: a Layer Clusters Paralleling mapping method for accelerating Inception and Residual networks on FPGA, DAC 2018, pp. 1 - 6, 2018.

[4] Xiao Yu,Liji Wu,Xiangmin Zhang,Bo Li, Interface circuit design and implementation for MEMS pressure sensor in tire pressure monitoring system, ICSICT 2012, pp. 1 - 3, 2012.

[5] Bo Li,Liji Wu,Xiangmin Zhang, New power rail ESD design with current starving technology, ASICON 2011, pp. 961 - 964, 2011.

[6] Shouyi Yin,Jianwei Cui,Ao Luo,Leibo Liu,Shaojun Wei, A High Efficient Baseband Transceiver for IEEE 802.15.4 LR-WPAN Systems, ASICON 2011, pp. 224 - 227, 2011.

[7] Wen Jia,Leibo Liu,Shouyi Yin,Min Zhu,Zhihua Wang, A fast complete deblocking filter on a coarse-grained reconfigurable processor supporting H.264 high profile decoding, PrimeAsia 2010, pp. 221 - 224, 2010.

[8] Fen Zhang,Guolin Li,Leibo Liu,Shouyi Yin,Chun Zhang, Zigbee transceiver digital baseband design, Microelectronics, No.4, pp. 40 - 44, 2009.

[9] Leibo Liu,Milin Zhang,Hongying Meng,Li Zhang,Zhihua Wang, A VLSI implementation of lifting-based forward and inverse wavelet transform, Chinese Journal of Electronics, Vol.16, No.3, pp. 423 - 428, 2007.

[10] Leibo Liu,Ning Chen,Chun Zhang,Hongying Meng,Li Zhang,Zhihua Wang,Hongyi Chen, An ASIC implementation of JPEG2000 encoder, Chinese Journal of Electronics, Vol.14, No.4, pp. 603 - 608, 2005.

[11] Leibo Liu,Zhihua Wang,Ning Chen,Li Zhang, VLSI architecture of EBCOT Tier-2 encoder for JPEG2000, IEEE Workshop on Signal Processing Systems Design and Implementation 2005, pp. 225 - 228, 2005.

[12] Leibo Liu,Hongying Meng,Li Zhang,Zhihua Wang, An ASIC implementation of JPEG2000 codec, CICC 2005, pp. 691 - 694, 2005.

[13] Yicong Meng,Leibo Liu,Li Zhang,Zhihua Wang, A low power VLSI implementation for JPEG2000 codec, ASICON 2005, ASICON 2005, pp. 198 - 202, 2005.

[14] Yicong Meng,Leibo Liu,Li Zhang,Zhihua Wang, Design Methodology of Low Power JPEG2000 Codec Exploiting Dual Voltage Scaling, ASICON 2005, pp. 183 - 186, 2005.

[15] Leibo Liu,Ning Chen,Li Zhang,Zhihua Wang, VLSI architecture of EBCOT tier-2 encoder for JPEG2000, ASICON 2005, pp. 173 - 176, 2005.

[16] Leibo Liu,Dejian Li,Xujin Wang,Hongying Meng,Zhihua Wang,Hongyi Chen,Yuwen Xia, DWT and EBCOT VLSI architecture for JPEG2000, Journal of Tsinghua University (Science and Technology), Vol.43, No.4, pp. 573 - 576, 2003.

[17] Leibo Liu,Ning Chen,Hongying Meng,Li Zhang,Zhihua Wang,Hongyi Chen, A VLSI chip of SCLA based 2-D DWT/IDWT, ASICON 2003, pp. 898 - 901, 2003.

[18] Leibo Liu,Dejian Li,Li Zhang,Zhihua Wang,Hongyi Chen, A VLSI architecture of EBCOT encoder for JPEG2000, ASICON 2003, pp. 882 - 885, 2003.

[19] Chunsheng Liu,Zhihua Wang,Guoqing Chen,Yanmei Li,Ende Wu,Dejian Li,Bo Li,Weibei Dou,Zaiwang Dong, A DAB transmitter prototype with high flexibility and low cost, IEEE Transactions on Broadcasting, Vol.48, No.3, pp. 173 - 178, 2002.

[20] Leibo Liu,Xuejin Wang,Hongying Meng,Li Zhang,Zhihua Wang,Hongyi Chen, A VLSI architecture of spatial combinative lifting algorithm based 2-D DWT/IDWT, APCCAS 2002, pp. 299 - 304, 2002.