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Logic gate

About: Logic gate is a(n) research topic. Over the lifetime, 35776 publication(s) have been published within this topic receiving 488365 citation(s). The topic is also known as: logic circuit. more


Open accessJournal ArticleDOI: 10.1109/4.126534
Abstract: Motivated by emerging battery-operated applications that demand intensive computation in portable environments, techniques are investigated which reduce power consumption in CMOS digital circuits while maintaining computational throughput. Techniques for low-power operation are shown which use the lowest possible supply voltage coupled with architectural, logic style, circuit, and technology optimizations. An architecturally based scaling strategy is presented which indicates that the optimum voltage is much lower than that determined by other scaling considerations. This optimum is achieved by trading increased silicon area for reduced power consumption. > more

Topics: CMOS (57%), Energy consumption (56%), Logic gate (55%) more

2,651 Citations

Journal ArticleDOI: 10.1126/SCIENCE.1065824
09 Nov 2001-Science
Abstract: We demonstrate logic circuits with field-effect transistors based on single carbon nanotubes. Our device layout features local gates that provide excellent capacitive coupling between the gate and nanotube, enabling strong electrostatic doping of the nanotube from p-doping to n-doping and the study of the nonconventional long-range screening of charge along the one-dimensional nanotubes. The transistors show favorable device characteristics such as high gain (>10), a large on-off ratio (>10(5)), and room-temperature operation. Importantly, the local-gate layout allows for integration of multiple devices on a single chip. Indeed, we demonstrate one-, two-, and three-transistor circuits that exhibit a range of digital logic operations, such as an inverter, a logic NOR, a static random-access memory cell, and an ac ring oscillator. more

Topics: Pass transistor logic (67%), Logic gate (66%), NMOS logic (65%) more

2,602 Citations

Journal ArticleDOI: 10.1126/SCIENCE.1066192
Yu Huang1, Xiangfeng Duan1, Yi Cui1, Lincoln J. Lauhon1  +2 moreInstitutions (1)
09 Nov 2001-Science
Abstract: Miniaturization in electronics through improvements in established “top-down” fabrication techniques is approaching the point where fundamental issues are expected to limit the dramatic increases in computing seen over the past several decades Here we report a “bottom-up” approach in which functional device elements and element arrays have been assembled from solution through the use of electronically well-defined semiconductor nanowire building blocks We show that crossed nanowire p-n junctions and junction arrays can be assembled in over 95% yield with controllable electrical characteristics, and in addition, that these junctions can be used to create integrated nanoscale field-effect transistor arrays with nanowires as both the conducting channel and gate electrode Nanowire junction arrays have been configured as key OR, AND, and NOR logic-gate structures with substantial gain and have been used to implement basic computation more

Topics: Nanowire (55%), Nanoelectronics (52%), Logic gate (51%) more

2,056 Citations

Journal ArticleDOI: 10.1126/SCIENCE.1108813
09 Sep 2005-Science
Abstract: “Spintronics,” in which both the spin and charge of electrons are used for logic and memory operations, promises an alternate route to traditional semiconductor electronics. A complete logic architecture can be constructed, which uses planar magnetic wires that are less than a micrometer in width. Logical NOT, logical AND, signal fan-out, and signal cross-over elements each have a simple geometric design, and they can be integrated together into one circuit. An additional element for data input allows information to be written to domain-wall logic circuits. more

Topics: Logic family (68%), Logic gate (67%), Pass transistor logic (66%) more

1,809 Citations

Journal ArticleDOI: 10.1109/77.80745
Abstract: Recent developments concerning the rapid single-flux-quantum (RSFQ) circuit family are reviewed. Elementary cells in this circuit family can generate, pass, memorize, and reproduce picosecond voltage pulses with a nominally quantized area corresponding to transfer of a single magnetic flux quantum across a Josephson junction. Functionally, each cell can be viewed as a combination of a logic gate and an output latch (register) controlled by clock pulses, which are physically similar to the signal pulses. Hand-shaking style of local exchange by the clock pulses enables one to increase complexity of the LSI RSFQ systems without loss of operating speed. The simplest components of the RSFQ circuitry have been experimentally tested at clock frequencies exceeding 100 GHz, and an increase of the speed beyond 300 GHz is expected as a result of using an up-to-date fabrication technology. This review includes a discussion of possible future developments and applications of this novel, ultrafast digital technology. > more

Topics: Rapid single flux quantum (72%), Synchronous circuit (61%), Asynchronous circuit (59%) more

1,756 Citations

No. of papers in the topic in previous years

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Topic's top 5 most impactful authors

Kaushik Roy

102 papers, 4.1K citations

Nobuyuki Yoshikawa

46 papers, 528 citations

Yngvar Berg

39 papers, 261 citations

Giovanni De Micheli

38 papers, 595 citations

Massimo Alioto

37 papers, 825 citations

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