Recently, it has been demonstrated that memristors can be utilized as logic operations and memory elements. In this paper, we present a novel circuit design for complementary resistive switch（CRS）-based stateful log...Recently, it has been demonstrated that memristors can be utilized as logic operations and memory elements. In this paper, we present a novel circuit design for complementary resistive switch（CRS）-based stateful logic operations. The proposed circuit can automatically write the destructive CRS cells back to the original states. In addition, the circuit can be used in massive passive crossbar arrays which can reduce sneak path current greatly. Moreover, the steps for CRS logic operations using our proposed circuit are reduced compared with previous circuit designs. We validate the effectiveness of our scheme through Hspice simulations on the logic circuits.展开更多
Polycrystalline LaCrO3（LCO） thin films are deposited on Pt/Ti/SiO2/Si substrates by pulsed laser deposition and used as the switching material to construct resistive random access memory devices. The unipolar resist...Polycrystalline LaCrO3（LCO） thin films are deposited on Pt/Ti/SiO2/Si substrates by pulsed laser deposition and used as the switching material to construct resistive random access memory devices. The unipolar resistive switching（RS） behavior in the Au/LCO/Pt devices exhibits a high resistance ratio of ~104 between the high resistance state（HRS） and low resistance state（LRS） and exhibits excellent endurance/retention characteristics.The conduction mechanism of the HRS in the high voltage range is dominated by the Schottky emission, while the Ohmic conduction dictates the LRS and the low voltage range of HRS. The RS behavior in the Au/LCO/Pt devices can be understood by the formation and rupture of conducting filaments consisting of oxygen vacancies,which is validated by the temperature dependence of resistance and x-ray photoelectron spectroscopy results.Further analysis shows that the reset current IR and reset power PR in the reset processes exhibit a scaling law with the resistance in LRS（R0）, which indicates that the Joule heating effect plays an essential role in the RS behavior of the Au/LCO/Pt devices.展开更多
Single-Pole Double-Throw (SPDT) broadband switch has been designed in a 0.25μm Comple- mentary Metal Oxide Semiconductor (CMOS) process. To optimize the performance of isolation and insertion loss, based on normal de...Single-Pole Double-Throw (SPDT) broadband switch has been designed in a 0.25μm Comple- mentary Metal Oxide Semiconductor (CMOS) process. To optimize the performance of isolation and insertion loss, based on normal design, the effects of Gate Series Resistances (GSR) on insertion loss and switching time are analyzed for the first time. The compatible GSRs are chosen by the analyses. The fabricated chips were tested and the results show the switch isolation from DC (Direct Current) to 1GHz exhibits 55dB and insertion loss lower than 2.1dB.展开更多
对模数转换器中的传统开关电路的导通电阻进行了详细的理论分析,提出了一种互补型栅压自举开关电路。该电路结构相比于传统开关,通过少量的功耗代价换取了更优的频域性能,在不同工艺角下具有更好的鲁棒性,适用于先进工艺下的低电压工作...对模数转换器中的传统开关电路的导通电阻进行了详细的理论分析,提出了一种互补型栅压自举开关电路。该电路结构相比于传统开关,通过少量的功耗代价换取了更优的频域性能,在不同工艺角下具有更好的鲁棒性,适用于先进工艺下的低电压工作环境。互补型栅压自举开关电路采用28 nm工艺设计,在1 V的电源电压下,对800 f F的负载电容进行速率为800 MS/s的采样,在低频输入下(181.25 MHz)实现的无杂散动态范围(SFDR)为89 d B,四倍奈奎斯特输入频率下(1 556 MHz)实现的SFDR为65 d B,开关电路面积为80μm×20μm。展开更多
基金Project supported by the National Natural Science Foundation of China(Grant Nos.61374150 and 11271146)the State Key Program of the National Natural Science Foundation of China(Grant No.61134012)+1 种基金the Doctoral Fund of Ministry of Education of China(Grant No.20130142130012)the Science and Technology Program of Shenzhen City,China(Grant No.JCYJ20140509162710496)
文摘Recently, it has been demonstrated that memristors can be utilized as logic operations and memory elements. In this paper, we present a novel circuit design for complementary resistive switch（CRS）-based stateful logic operations. The proposed circuit can automatically write the destructive CRS cells back to the original states. In addition, the circuit can be used in massive passive crossbar arrays which can reduce sneak path current greatly. Moreover, the steps for CRS logic operations using our proposed circuit are reduced compared with previous circuit designs. We validate the effectiveness of our scheme through Hspice simulations on the logic circuits.
基金Supported by the Joint Funds of the National Natural Science Foundation of China and the Chinese Academy of Sciences’Large-Scale Scientific Facility under Grant No U1532149the National Basic Research Program of China under Grant No2014CB931704
文摘Polycrystalline LaCrO3（LCO） thin films are deposited on Pt/Ti/SiO2/Si substrates by pulsed laser deposition and used as the switching material to construct resistive random access memory devices. The unipolar resistive switching（RS） behavior in the Au/LCO/Pt devices exhibits a high resistance ratio of ~104 between the high resistance state（HRS） and low resistance state（LRS） and exhibits excellent endurance/retention characteristics.The conduction mechanism of the HRS in the high voltage range is dominated by the Schottky emission, while the Ohmic conduction dictates the LRS and the low voltage range of HRS. The RS behavior in the Au/LCO/Pt devices can be understood by the formation and rupture of conducting filaments consisting of oxygen vacancies,which is validated by the temperature dependence of resistance and x-ray photoelectron spectroscopy results.Further analysis shows that the reset current IR and reset power PR in the reset processes exhibit a scaling law with the resistance in LRS（R0）, which indicates that the Joule heating effect plays an essential role in the RS behavior of the Au/LCO/Pt devices.
基金Partially supported by the National Natural Science Foundation of China (No.60501012).
文摘Single-Pole Double-Throw (SPDT) broadband switch has been designed in a 0.25μm Comple- mentary Metal Oxide Semiconductor (CMOS) process. To optimize the performance of isolation and insertion loss, based on normal design, the effects of Gate Series Resistances (GSR) on insertion loss and switching time are analyzed for the first time. The compatible GSRs are chosen by the analyses. The fabricated chips were tested and the results show the switch isolation from DC (Direct Current) to 1GHz exhibits 55dB and insertion loss lower than 2.1dB.
文摘对模数转换器中的传统开关电路的导通电阻进行了详细的理论分析,提出了一种互补型栅压自举开关电路。该电路结构相比于传统开关,通过少量的功耗代价换取了更优的频域性能,在不同工艺角下具有更好的鲁棒性,适用于先进工艺下的低电压工作环境。互补型栅压自举开关电路采用28 nm工艺设计,在1 V的电源电压下,对800 f F的负载电容进行速率为800 MS/s的采样,在低频输入下(181.25 MHz)实现的无杂散动态范围(SFDR)为89 d B,四倍奈奎斯特输入频率下(1 556 MHz)实现的SFDR为65 d B,开关电路面积为80μm×20μm。
