In this paper, an analytical model is developed for parasitic gate capacitance of the gate-all-around (GAA) silicon nanowire MOSFETs (SNWT) with asymmetrical top and bottom gates. The modeling results show that the ga...
详细信息
In this work, ultrathin indium tin oxide (ITO) radio frequency (RF) transistors have been demonstrated for the first time, where inverted gate structure are used with a flexible polyimide substrate using magnetron spu...
In this work, ultrathin indium tin oxide (ITO) radio frequency (RF) transistors have been demonstrated for the first time, where inverted gate structure are used with a flexible polyimide substrate using magnetron sputtering at a thermal budget below 200 °C. The 160 nm channel length device exhibits excellent DC characteristics, including mobility of 26 cm 2 /V·s and an I on /I off ratio of 6.6×10 8 . A record-high extrinsic cut-off frequency (f T ) of 2.1 GHz and an extrinsic maximum oscillation frequency (f max ) of 3.7 GHz have also been obtained, which are more than one order of magnitude higher than previous results on flexible substrate. A high conversion gain of -20.9 dB has been achieved for the gigahertz frequency mixer based on flexible ITO RF transistor. Moreover, the stability of DC and RF performance under different bending conditions up to 50,000 bending cycles or down to 1 mm bending radius are studied without device failure.
Transition metal dichalcogenides (TMDs) are regarded as promising nano materials for next generation electronics and optoelectronics due to their ultrathin body nature and excellent transport properties. Here, single ...
Transition metal dichalcogenides (TMDs) are regarded as promising nano materials for next generation electronics and optoelectronics due to their ultrathin body nature and excellent transport properties. Here, single crystal growth of monolayer Mos 2 has been realized by controllable atmosphere pressure chemical vapor deposition (APCVD) method. The high-quality of Mos 2 grown directly on SiO 2 /Si substrate has been demonstrated by various material characterization methods. The fabricated optoelectronic device shows prominent photoresponse within a broadband spectrum range and a wide optical power range by taking advantage of the Schottky contact at source/drain electrodes. As a result, high photoresponsivity of 3×10 4 A/W as well as high photodetectivity up to 7×10 12 Jones have been achieved.
In this paper, we proposed a novel multi-floating-gate synaptic nanowire transistor which can emulate synapses behaviors such as long-term potentiation (LTP), long-term depression (LTD), integration signals from multi...
详细信息
In this paper, we proposed a novel multi-floating-gate synaptic nanowire transistor which can emulate synapses behaviors such as long-term potentiation (LTP), long-term depression (LTD), integration signals from multiple pre- synapses and successive synaptic weight modulation, it can also realize high density interconnection in current CMOS IC technology to build complex neural network. Meanwhile, a novel scheme was also proposed to simulate amplitude-adjustable function by properly controlling the polarity-gates. Therefore, the multiple synaptic behaviors can be realized by the proposed new device, making it a competitive candidate for neuromorphic systems.
In this paper, self-heating model of SNWT is studied. For the first time, the excellent heat dissipation per channel width for SNWT is disclosed. The special 2D heat dissipation mode is believed to be the reason. Acco...
详细信息
In this paper, self-heating model of SNWT is studied. For the first time, the excellent heat dissipation per channel width for SNWT is disclosed. The special 2D heat dissipation mode is believed to be the reason. Accordingly, a novel SNWT was proposed to improve the ESD robustness of gate-grounded SNWT with removal of buried oxide under gate. Experiments show the record failure current density of 18.8mA/μm with 5nm diameter. Provided highly uniform nanowire array fabrication capability, SNWT can also achieve high total failure current and ESD voltage.
One design technique that aims to reduce power consumption of MOS current mode logic dual-modulus frequency divider is presented in this paper. With combinational logic transferred the proposed scheme can obtain high ...
详细信息
ISBN:
(纸本)9781538662359
One design technique that aims to reduce power consumption of MOS current mode logic dual-modulus frequency divider is presented in this paper. With combinational logic transferred the proposed scheme can obtain high working frequency. By merging the first master latches of CML DFFs, the simplified structure can achieve lower power consumption. Circuit simulation of the proposed structure in 28nm CMOS technology shows a 21% reduction of power consumption over conventional scheme is achieved at frequency of 56GHz.
Integrated fan-out wafer level packaging (InFO-WLP) technology has the advantages in small form factor and high quality passive device. This paper proposes a single pole double throw switch (SPDT) which employs the λ...
Integrated fan-out wafer level packaging (InFO-WLP) technology has the advantages in small form factor and high quality passive device. This paper proposes a single pole double throw switch (SPDT) which employs the λ/4 based structure using the InFO-WLP technology. The control device of the SPDT utilizes the 40 nm bulk CMOS process and the λ/4 transmission line is realized by the metal in redistribution layers (RDLs). The simulated results show the proposed SPDT achieves less than 2.1 dB insertion loss, better than 17.4 dB isolation and better than -10 return loss at 26-34 GHz. The SPDT has a compact silicon size of 190 μm×140 μm.
Two low voltage dual-modulus frequency divider based on extended true single-phase clock (E-TSPC) logic are proposed. By reducing the number of serial transistors from VDD to GND, the proposed designs can effectively ...
详细信息
ISBN:
(纸本)9781538662359
Two low voltage dual-modulus frequency divider based on extended true single-phase clock (E-TSPC) logic are proposed. By reducing the number of serial transistors from VDD to GND, the proposed designs can effectively work at low voltage. Simulation results in SMIC 40nm technology show that the presented design I has better power and speed performance with lower supply voltage. Compared to the referenced designs, the presented design II can work at the lowest supply voltage with little loss of performance.
In all-digital phase-locked loop (ADPLL), the optimal loop gain which minimize the phase noise becomes uncertain due to process, voltage, and temperature (PVT) variation. An adaptive loop gain controller (ALGC) used t...
In all-digital phase-locked loop (ADPLL), the optimal loop gain which minimize the phase noise becomes uncertain due to process, voltage, and temperature (PVT) variation. An adaptive loop gain controller (ALGC) used to automatically adjust the loop gain is proposed in this paper. The output pattern of bang-bang phase frequency detector (BBPFD) is correlated with the loop gain, so the ALGC structure can converge the gain to the optimum value by detecting the auto-correlation coefficient of BBPFD output. The simulation results show that the proposed ALGC structure can effectively reduce the output jitter.
Nonvolatile logic based on memristors provides a promising approach toward efficient Non-von Neumann computing. Here we propose a methodology employing hybrid bipolar-unipolar memristive circuits for efficient in-memo...
详细信息
Nonvolatile logic based on memristors provides a promising approach toward efficient Non-von Neumann computing. Here we propose a methodology employing hybrid bipolar-unipolar memristive circuits for efficient in-memory logic functions. By combining the features of bipolar and unipolar memristors, the proposed circuits are able to execute both fundamental Boolean logic and arithmetic computing with high reconfigurability and high parallelism, which compares favorably with existing methods of in-memory logic based on memristors. This work could thus pave the way for the development of new in-memory computing architecture with high efficiency.
暂无评论