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International Conference on asic

作者： Jianguo Yang Juan Xu Bo Wang Xiaoyong Xue Ryan Huang Qingtian Zhou Jingang Wu Yinyin Lin ASIC and System State Key Lab Fudan University Shanghai China Semiconductor Manufacturing International Corp SOC Technology Development Center Shanghai

A high reliability system for the generation of truly random numbers, based on Resistive Random Access Memory (RRAM) has been proposed. The circuit is using the random telegraph noise (RTN) in RRAM cell as a source of noise to force more jitter into the oscillators. Because these RTN signals from the RRAM cells are much larger than that in the MOSFET and thermal noise in a resistor, then the preamplifier is not required. A prototype chip has been fabricated in SMIC 0.18um standard CMOS logic process. The test results show that the features of the proposed true random number generator (TRNG) fulfill the NIST tests for randomness.

关键词： Computer architecture Oscillators Microprocessors NIST Jitter MOSFET

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Optical behavior in visible frequency through free-standing chiral metamaterial in SiNx membrane

Optical behavior in visible frequency through free-standing ...

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The 6th International Conference on Nanoscience and Technology, China 2015 (第六届中国国际纳米科学技术会议)

作者： Bingrui Lu Chen Xu Sichao Zhang Junjie Li Yifang Chen Nanolithography and Application Research Group State key lab of Asic and SystemSchool of Information Science and EngineeringFudan UniversityShanghai 200433China

Metamaterials are artificially structured media that are engineered for electromagnetic properties such as negative refractive index,giant optical activity and circular *** include multiband circular polarization transformers and wave plates,chirality based sensors *** studies on metamaterials for their enormously strong chiral responses,covers various structural designs such as helical,split ring,combined U-or L-shape,twisted arc,twisted rosette,metallic cut wire structures ***,the research on the actual devices is limited because the actual structures are normally generated on a substrate,which interferes with the optical behavior of the metamaterial itself,making it difficult to distinguish the contributions between the two *** order to study the optical behavior of the metamaterial,developing a method to create free-standing metamaterial structures is *** we report a method for free-standing chiral metamaterials on SiNx ***,a suspended SiNx membrane of 100 nm thickness is fabricated on a double-side-polished silicon *** SiNx layer is deposited by LPCVD onto one side of the silicon *** the other side multiple windows in the size of 1 mm by 1 mm are etched through the silicon substrate using KOH chemical with the protection of photoresist,leaving the SiNx film *** a JEOL 6300FS EBL system is used to create chiral patterns in the PMMA resist on the SiNx ***,Reactive Ion Etching by Samco RIE system is applied with CHF3 and O2 to etch through the SiNx membrane to form the stencil *** depositing the metal film on top of the etched SiNx membrane,the free-standing metamaterial structures are *** this method,free-standing chiral metamaterial structures are generated for optical behavior study within the visible frequency *** facilitates enhanced experimental research on metamaterial devices in the study of artificial light manipulation.

关键词： chiral metamaterial free-standing visible frequency optical behavior

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Nanofabrication of high aspect ratio optical components for hard X-ray optics

Nanofabrication of high aspect ratio optical components for ...

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The 6th International Conference on Nanoscience and Technology, China 2015 (第六届中国国际纳米科学技术会议)

作者： Jianpeng Liu Jinhai Shao Xin Li Sichao Zhang Bingrui Lu Yifang Chen Nanolithography and Application Research Group State key lab of Asic and SystemSchool of Information Science and EngineeringFudan UniversityShanghai 200433China

Full-field transmission X-ray microscopy(TXM)is widely applied in basic study of science,covering microelectronics,bioscience,organic chemistry,materials science,etc [1].The key components in X-ray optics are condensers providing an illumination onto the testing samples and the high-resolution zone plate as an objective lens forming a magnified image of the sample [2,3].So the high aspect ratio(height/width)condensers and zone plates are very important.

关键词： Electron beam lithography.High aspect ratio.Hard x-ray optics

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A 9.8 Gbps, 6.5 mW forwarded-clock receiver with phase interpolator and equalized current sampler in 65 nm CMOS

A 9.8 Gbps, 6.5 mW forwarded-clock receiver with phase inter...

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Microwave, MTT-S International Symposium

作者： Shunli Ma Sai Manoj Hao Yu Junyan Ren Roshan Weerasekera State Key Lab of ASIC and System Fudan University Shanghai China School of EEE Nanyang Technological University Singapore Institute of Microelectronics Singapore

A full-rate energy-efficient forwarded-clock (FC) receiver is demonstrated in this paper. A current sampler with continuous-time equalization is realized with 20 GHz bandwidth in sampling for data recovery. Moreover, a phase interpolator is introduced to generate sampling clock with deskew for data recovery. The testing chip was fabricated in 65 nm CMOS process in area of 0.16 mm 2 . Measurement shows that the FC receiver can achieve a data-rate up to 9.8 Gbps and power consumption is 6.5 mW.

关键词： CMOS integrated circuits Clocks CMOS technology Receivers Oscillators Large scale integration

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A wideband and low power dual-band ASK transceiver for intra/inter-chip communication

A wideband and low power dual-band ASK transceiver for intra...

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Microwave, MTT-S International Symposium

作者： Shunli Ma Junyan Ren Ning Li Fan Ye Qun Jane Gu State Key Lab of ASIC and System Fudan University Shanghai China Electrical and Computer Engineering Department University of California Davis Davis CA USA

An energy-efficient dual-band ASK transceiver for intra/inter-chip communication is proposed in this paper. The transmitter is implemented with two coupled VCOs which have two modes and generate two carrier frequencies (75 GHz/85 GHz) with low power consumption. Meanwhile, the receiver consists of a wideband LNA, an envelope detector and output buffer. The LNA has a peak gain of 27 dB at 86 GHz, a bandwidth of 28 GHz from 65 GHz to 93 GHz and a power consumption of 7 mW. Intra-chip communication channels are implemented by on-chip transmission lines. Prototype ASK transceiver is fabricated in TSMC 65 nm CMOS process with an area of 0.42 mm 2 . A spectrum and transient measurements show the bandwidth achieves up to 8 GHz with a power consumption of 13 mW.

关键词： Amplitude shift keying CMOS integrated circuits CMOS technology Frequency synchronization Resonant frequency Transceivers

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A Parallel and Reconfigurable United Architecture for Fibonacci and Galois LFSR

A Parallel and Reconfigurable United Architecture for Fibona...

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International Conference on Intelligent Human-Machine systems and Cybernetics, IHMSC

作者： Wei Li Xuan Yang State-Key lab of ASIC and System Fudan University Shanghai China Institue of Information Science and Technology ZhengZhou China Jiangnan Institute of Computing Technology WuXi China

ISBN: (纸本)9781479986477

The parallel reconfigurable and united architecture of LFSR is represented to improve the speed, flexibility and security of communication system and cipher algorithms. It can be reconfigured to Fibonacci LFSRs and Galois LFSRs according to different applications. The random lengths and feedback taps can be achieved to meet the demands of different applications. The parallel updating method has an obvious advantage on speed and efficiency. Furthermore, the flexibility and complexity increases the security of the communication system and cipher algorithms.

关键词： Ciphers Algorithm design and analysis Hardware Delays Computer architecture Mathematical model

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Study of inhibition mechanism of glycine on the electrochemical behavior of Mo in the alkaline slurry

Study of inhibition mechanism of glycine on the electrochemi...

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International Conference on Planarization/CMP Technology

作者： Guang Yang Hui Feng Xu Wang Xin-Ping Qu State key lab of ASIC and system Fudan University Shanghai China

We have found that glycine has inhibition effect on the CMP of Molybdenum (Mo) in alkaline slurry using H_2O_2 as oxidizer. In this work the inhibition mechanism is investigated using pontentiodynamic polarization, st... 详细信息

关键词： Films Slurries Corrosion Irrigation

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Impacts of external magnetic field and high temperature disturbance on MRAM reliability based on FPGA test platform

Impacts of external magnetic field and high temperature dist...

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International Conference on asic

作者： Kai Yang Yanqing Zhao Jianguo Yang Xiaoyong Xue Yinyin Lin Jun-Soo Bae ASIC and System State Key Lab Fudan University Shanghai China Semiconductor R&D Center Samsung Electronics Co. Ltd. Gyeonggi-Do Korea

As the semiconductor manufacturing technology continuously scales down, the working memory, such as SRAM and DRAM, suffers from the issues of dramatic leakage and power consumption. Non-volatile memories are proposed to deal with these problems. Among them, MRAM is one of the most promising candidates for DRAM replacement. However, MRAM is sensitive to external magnetic field and high temperature disturbance theoretically. In this paper, we investigate the impacts of external magnetic field and high temperature disturbance on MRAM and set up a test platform based on FPGA to analyze MRAM reliability under different external environment. Test results show that MRAM has a good thermal reliability but a notable sensitivity to external magnetic field disturbance.

关键词： Reliability Magnetic fields Magnetic tunneling Field programmable gate arrays Random access memory Mathematical model Temperature distribution

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Study of DC sputtered Cu2O growth and p-Cu2O/ n-IGZO heterojunctions 12

Study of DC sputtered Cu2O growth and p-Cu2O/ n-IGZO heteroj...

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2014 12th IEEE International Conference on Solid-state and Integrated Circuit Technology, ICSICT 2014

作者： Feng, Ji-Yu Chun-Feng, Hu Qu, Xin-Ping State Key Lab of ASIC and System Fudan University Shanghai200433 China

ISBN: (纸本)9781479932962

Cu2O thin films were deposited on glass substrates by DC magnetron sputtering. The effects of the ratio of Ar/O2 and sputtering pressure on the structure of the formed copper oxide films were investigated. It is found that with increase of O2 ratio and sputtering pressure, the formed films change from a mixture of Cu and Cu2O to pure CuO film. It is also found that the film has a preferred Cu2O (200) orientation and cluster surface morphology. The fabricated p-Cu2O/n-IGZO heterojunction has a rectifying I-V characteristic and exhibits a response to UV illumination. © 2014 IEEE.

关键词： Thin films

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Design and stability analysis of buck-boost converter applied with adaptive voltage positioning technique

International Journal of Control and Automation

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International Journal of Control and Automation 2014年第7期7卷 345-356页

作者： Deng, Fei Xie, Guangjun Cheng, Xin School of Electronic Science and Applied Physics Hefei University of Technology Hefei China State Key Lab of ASIC and System Fudan University Shanghai China

In this paper a buck-boost converter with adaptive voltage positioning (AVP) control technique is researched. According to the small-signal model of the converter, a constant output impedance required in AVP control is realized. Besides, the RHP zero in buck-boost converter is analyzed and the design of compensator to keep the system stable is presented. The converter is simulated in Simulink and the simulation results verify the above analysis. © 2014SERSC.

关键词： Buck-Boost converter

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