test is an indispensable task of vlsi circuits design . with the increased complexity of vlsi circuits, time overhead of atpg has become a bottleneck of design 随着vlsi电路复杂性的增长,自动测试生成(atpg,automatictestpatterngeneration)的时间开销已经成为vlsi电路设计的瓶颈之一。
as manufacture technology scaling down, power dissipation has become a critical issue of vlsi circuit design, in which dynamic power dissipation estimation and optimization are traditionally included 随着制造工艺的发展,功耗成为集成电路设计中的一个十分关键的问题,传统的低功耗设计主要围绕动态功耗的估计和优化展开。
the character of threshold voltage in vlsi circuit is analyzed . it can make a serious effect on power dissipation and performance . an algorithm based on partition is designed to choose the most favorable working voltage and threshold 在低电压电路中,既要使电路实现正常的开关,又必须限制延时和亚阈值漏电流的急剧增加,就必须认真地选择工作电压和阈值电压。
under this background and support of sichuan science and technology bureau foundation, this dissertation is intended to report some of our research results for sloving routing problems of the vlsi circuits based on computational intelligence methodology 本文正是在这样的背景下,基于四川省科技厅基金项目,研究计算智能方法在深亚微米工艺下性能驱动vlsi生产工序中关键环节??物理设计中的应用。
since ic came forth, its evolution have almost accorded with the rule of moore . now the technology of ic had broken through the barrier of wire width at 100nm . with the condition of this, more and more problems of physical design of vlsi circuits change into np-hard problem 自从ic诞生以来,ic芯片的发展基本上遵循了摩尔定律,目前已经突破100nm大关,相应的系统规模的扩大,使得ic物理设计中的很多困难日益np问题日益棘手。