Sub-nanosecond Arithmetic

这项研究的主题是在一个非常快的算术处理器中，算法、制造技术、封装和CAD(计算机辅助设计)工具之间的交互作用。研究人员正在构建一种多功能算术处理器，它可以执行浮点算术以及更高级别的函数(TRIG、LOG等)。该处理器构建在BiCMOS(双极互补金属氧化物半导体)中，并封装在包含蚀刻互连线和用于配置这些线的有源器件的有源硅衬底上。需要新的CAD工具来估计和匹配逻辑块和互连中的延迟。

The topic of this research is the interaction between algorithms, fabrication technology, packaging, and CAD (computer-aided design) tools in a very fast arithmetic processor. The investigators are building a multi-function arithmetic processor that can do floating point arithmetic as well as higher level functions (trig, log, etc.). The processor is constructed in BiCMOS (bipolar complementary metal oxide semiconductor), and is packaged on an active silicon substrate that contains etched interconnection lines and active devices for configuring the lines. New CAD tools are needed to allow estimation and matching of delays in the logic blocks and the interconnection.