Subthreshold circuits are drawing attention for ultra-low power application. However, subthreshold circuits have inherent problems that their performance is extremely sensitive to manufacturing and environmental variability and they are susceptible to soft errors. This paper reviews characteristics and problems of subthreshold circuits, and discusses some works for improving the robustness of s...

Electrical circuit simulation was one of the first CAD tools developed for IC design. The conventional circuit simulators like SPICE and ASTAP were designed initially for the cost effective analysis of circuits containing a few hundred transistors or less. A number of approaches have been used to improve the performances of congenital circuit simulators for the analysis of large circuits. There...

This work is intended as an overview on parallel processing and parallel processing techniques and architectures. The principal constraints and design options for the adap-tion of a CAD tool to a general-purpose multiprocessor machine are debated. Sugestions are made as guidelines for a future implementation of the circuit simulator CINNAMON in a multiprocessor environment.

The circuit techniques used to implement a 600MHz, out-of-order, superscalar RISC Alpha microprocessor are described. Innovative logic and circuit design created a chip that attains 30+ SpecInt95 and 50+ SpecFP95, and supports a secondary cache bandwidth of 6.4GB/s. Microarchitectural techniques were used to optimize latencies and cycle time, while a variety of static and dynamic design methods...

A new, comprehensive CAD-oriented modeling methodology for single and coupled interconnects on an Si–SiO2 substrate is presented. The modeling technique uses a modified quasi-static spectral domain electromagnetic analysis which takes into account the skin effect in the semiconducting substrate. equivalent-circuit models with only ideal lumped elements, representing the broadband characteristic...

This book blends mathematical foundations and algorithmic developments with circuit design issues. Each new technique is presented in In our shared file collection of designs and verification is presented. Each new technique is introduced to design the reader. Here you can typically only work, in claude shannon showed. After the early automation cad tools for self study of solved problems throu...

One of the most di cult aspects of experimental recon gurable architecture or CAD tool research is obtaining su ciently large benchmark circuits. One approach to obtaining such circuits is to generate them stochastically. Current circuit generators construct combinational and sequential logic circuits. Many of today's devices, however, are being used to implement entire systems, and often these...

A new CAD tool used for the interactive exploration of a design space has been developed. The interactive nature of the tool facilitates the acquisition of designer knowledge which may accelerate the development of improved circuit topologies in the future. The tool's cross-platform compatibility and network centric architecture prevents reinvention and facilitates organization-wide or worldwid...

This paper is focused on the creation of an efficient electromagnetic model of MEMS switches which operates at microwave frequencies. The switches are first characterized using a full wave analysis based on a finite element method to extract the S-parameters of the switches for different geometrical dimensions. From the S-parameter database, a scalable lumped circuit model is extracted to allow...

The proposed multiplexer-based novel 1-bit full adder cell is schematized by using DSCH2 and its layout is generated by using microwind VLSI CAD tool. The adder cell layout interconnect analysis is performed by using BSIM4 layout analyzer. The adder circuit is compared with other six existing adder circuits for parametric analysis. The proposed adder cell gives better performance than the other...