Frame Rate Control駆動方式を用いたTFT-LCD中間調表示特性における透過率の温度依存性

1. In t roduc t ion . The design of semiconductor devices is a complex task that has a strategic role in Integrated Circuits manufacturing. First of all, the performance of systems realized using a specific technology is strongly related to the design of the technological process, which dictates the basic performances of the circuits. On the other hand, the soaring cost of manufacturing equipment gives a strong push to a detailed optimization of the process in order to exploit the available capabilities. The CAD tools available today are playing a key role in order to reduce the cost associated with design optimization of semiconductor devices. In fact, process and device simulators have found a wide acceptance among designers; these tools are providing reliable results that allow them to cut the cost associated with the laboratory experiments required to investigate different tradeoffs. Even though the software environment to support device design has had a steady improvement in the last few years, the tuning of the process parameters is usually left to the process designer who, on his own, has to choose the tradeoff among many objectives in competition with one another. From this point of view, the availability of an integrated synthesis system that supports an optimized design of semiconductor devices is likely to be an useful tool for a timely and high-quality design development.