The development of the computer-aided-design (CAD) tools for digital circuits has been perfected for these years. However, the CAD tools for analog circuits still remains a great deal of challenges. Since the size of transistors scales down as the process technology advances, design migration problem takes place to increase the degree of layout reusing. With previous work such as placement migr...

Computer Aided Design (CAD) tools are commonly adopted in the design, synthesis and simulation of digital circuits. Switch-level simulation, logic synthesis, timing analysis and architecture optimizations are essential CAD tools during digital IC design flow. However, the HDL coding, computation complexity and simulation time overhead makes the design turnaround time much longer. This drawback ...

This paper describes the Semiconductor Wafer Representation (SWR) for representing and manipulating wafer state during process and device simulation. The goal of the SWR is to provide an object-oriented interface to a collection of functions designed for developing and integrating Technology CAD (TCAD) applications. By providing functions which can be common across many applications, we aim to ...

Voluminous CAD models are produced in industry and architecture to design complex mechanical and architectural structures. The use of these models to set up virtual worlds is a rather tedious and laborious work. To simplify this task, we have combined a series of tools which help us to build in a rapid and e cient way virtual world experiments from complex CAD models. These tools perform variou...

Standard tools for CAD have limited modes of the sensitivity analysis: PSPICE only contains a static mode and SPECTRE includes frequency-domain and static modes. However, many RF systems use symmetrical structures for enhancing the circuit properties. For such systems, the static sensitivities are zero on principle and hence the time-domain sensitivity analysis should be used. In the paper, a n...

The wireless communication systems design plays the important roles in the field of microelectronics and system-on-chip methodologies. Traditional digital, mixed signal and analog low-frequency designers have enjoyed an integrated front-to-back IC design system. On the other hand, radio frequency or microwave designers with a discrete design background have used board-level computer-aided desig...

Introduction Microelectromechanical Systems (MEMS) has existed as a technical field since the early 1980’s. Past research has primarily focused on developing new process technologies to support specific applications. As stable process technologies have emerged, many research efforts have shifted towards the design of systems containing hundreds or even thousands of mixeddomain components. As a ...

This paper describes how to effectively use CAD tools for SI and EMI analysis at 2.5Gbps to 12.5Gbps, and how different CAD tools to be involved in high speed PCB design process. It discusses providing design rules on board stack-up, predicting loss and its compensation using SpecctraQuest; validating device models and performs power/ground analysis for de-coupling capacitor selection and place...

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Sparse linear systems are found in a variety of scientific and engineering problems. In VLSI CAD tools, DC circuit analysis creates large, sparse systems represented by matrices and vectors. The algorithms designed to solve these systems are known to be quite time consuming and many previous attempts have been made to parallelize them. Graphics cards have evolved from specialized devices into m...