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Author: Richard Marker Swanson Publisher: ISBN: Category : Digital integrated circuits Languages : en Pages : 220
Book Description
Complementary MOS transistor (CMOST) circuits offer great potential for very low power operation. These circuits are analyzed to determine their ultimate obtainable performance, and fabrication techniques are developed that produce circuits with the lowest power-speed product reported to date. The MOST is treated as a distributed nonlinear transmission line to investigate the detailed nature of its transient response. These methods are applied to the analysis of the switching performance of CMOST logic gates. This analysis predicts that power consumption has no lower bound if the gate can be operated at low voltages and if the transistors are small enough. A new MOST model is developed that describes effects that become significant at small voltages and sizes. A method for adjusting MOST threshold voltage by ion implantation is described.
Author: Richard Marker Swanson Publisher: ISBN: Category : Digital integrated circuits Languages : en Pages : 220
Book Description
Complementary MOS transistor (CMOST) circuits offer great potential for very low power operation. These circuits are analyzed to determine their ultimate obtainable performance, and fabrication techniques are developed that produce circuits with the lowest power-speed product reported to date. The MOST is treated as a distributed nonlinear transmission line to investigate the detailed nature of its transient response. These methods are applied to the analysis of the switching performance of CMOST logic gates. This analysis predicts that power consumption has no lower bound if the gate can be operated at low voltages and if the transistors are small enough. A new MOST model is developed that describes effects that become significant at small voltages and sizes. A method for adjusting MOST threshold voltage by ion implantation is described.
Author: Christian C. Enz Publisher: John Wiley & Sons ISBN: 0470855452 Category : Technology & Engineering Languages : en Pages : 328
Book Description
Modern, large-scale analog integrated circuits (ICs) are essentially composed of metal-oxide semiconductor (MOS) transistors and their interconnections. As technology scales down to deep sub-micron dimensions and supply voltage decreases to reduce power consumption, these complex analog circuits are even more dependent on the exact behavior of each transistor. High-performance analog circuit design requires a very detailed model of the transistor, describing accurately its static and dynamic behaviors, its noise and matching limitations and its temperature variations. The charge-based EKV (Enz-Krummenacher-Vittoz) MOS transistor model for IC design has been developed to provide a clear understanding of the device properties, without the use of complicated equations. All the static, dynamic, noise, non-quasi-static models are completely described in terms of the inversion charge at the source and at the drain taking advantage of the symmetry of the device. Thanks to its hierarchical structure, the model offers several coherent description levels, from basic hand calculation equations to complete computer simulation model. It is also compact, with a minimum number of process-dependant device parameters. Written by its developers, this book provides a comprehensive treatment of the EKV charge-based model of the MOS transistor for the design and simulation of low-power analog and RF ICs. Clearly split into three parts, the authors systematically examine: the basic long-channel intrinsic charge-based model, including all the fundamental aspects of the EKV MOST model such as the basic large-signal static model, the noise model, and a discussion of temperature effects and matching properties; the extended charge-based model, presenting important information for understanding the operation of deep-submicron devices; the high-frequency model, setting out a complete MOS transistor model required for designing RF CMOS integrated circuits. Practising engineers and circuit designers in the semiconductor device and electronics systems industry will find this book a valuable guide to the modelling of MOS transistors for integrated circuits. It is also a useful reference for advanced students in electrical and computer engineering.
Author: John C. Sturman Publisher: ISBN: Category : Logic circuits Languages : en Pages : 80
Book Description
Low-power logic, as discussed in the few available references, is primarily concerned with computer-type applications in which high operating rate is the dominant prerequisite. Logic circuits for satellite and space-vehicle use are less demanding of speed but considerably more limited in power consumption. An analysis of the logic circuits suitable for the latter type of application and experimental results to verify the analysis are presented.
Author: Alice Wang Publisher: Springer Science & Business Media ISBN: 0387345019 Category : Technology & Engineering Languages : en Pages : 218
Book Description
Based on the work of MIT graduate students Alice Wang and Benton Calhoun, this book surveys the field of sub-threshold and low-voltage design and explores such aspects of sub-threshold circuit design as modeling, logic and memory circuit design. One important chapter of the book is dedicated to optimizing energy dissipation - a key metric for energy constrained designs. This book also includes invited chapters on the subject of analog sub-threshold circuits.
Author: Jeroen A. Croon Publisher: Springer Science & Business Media ISBN: 0387243135 Category : Technology & Engineering Languages : en Pages : 214
Book Description
Matching Properties of Deep Sub-Micron MOS Transistors examines this interesting phenomenon. Microscopic fluctuations cause stochastic parameter fluctuations that affect the accuracy of the MOSFET. For analog circuits this determines the trade-off between speed, power, accuracy and yield. Furthermore, due to the down-scaling of device dimensions, transistor mismatch has an increasing impact on digital circuits. The matching properties of MOSFETs are studied at several levels of abstraction: A simple and physics-based model is presented that accurately describes the mismatch in the drain current. The model is illustrated by dimensioning the unit current cell of a current-steering D/A converter. The most commonly used methods to extract the matching properties of a technology are bench-marked with respect to model accuracy, measurement accuracy and speed, and physical contents of the extracted parameters. The physical origins of microscopic fluctuations and how they affect MOSFET operation are investigated. This leads to a refinement of the generally applied 1/area law. In addition, the analysis of simple transistor models highlights the physical mechanisms that dominate the fluctuations in the drain current and transconductance. The impact of process parameters on the matching properties is discussed. The impact of gate line-edge roughness is investigated, which is considered to be one of the roadblocks to the further down-scaling of the MOS transistor. Matching Properties of Deep Sub-Micron MOS Transistors is aimed at device physicists, characterization engineers, technology designers, circuit designers, or anybody else interested in the stochastic properties of the MOSFET.
Author: Gerson A. S. Machado Publisher: IET ISBN: 9780852968741 Category : Technology & Engineering Languages : en Pages : 1072
Book Description
This book brings together innovative modelling, simulation and design techniques in CMOS, SOI, GaAs and BJT to achieve successful high-yield manufacture for low-power, high-speed and reliable-by-design analogue and mixed-mode integrated systems.
Author: Richard Marker Swanson
Author: Richard Marker Swanson
Author: James D. Meindl
Author: John C. Sturman
Author: Christian C. Enz
Author: John C. Sturman
Author: Alice Wang
Author: Jeroen A. Croon
Author: Gerson A. S. Machado
Author: John C. Sturman
Author: American Micro-systems, inc