基于直流通路划分的模拟集成电路布局方法

对模拟集成电路自动布局方法进行研究,提出基于直流通路划分的布局算法,结合直流通路顺序约束和电源方向上的位置约束,采用空间搜索布局算法提供初始布局,并用模拟退火算法进行迭代优化.使用工业界常用的电路做测试,实验结果表明,该方法可以在满足对称和邻近等约束的基础上产生紧凑的布局结果,并且最小化直流通路和信号流路径的寄生效应....

Full description

Saved in:
Bibliographic Details
Published in电子技术应用 Vol. 40; no. 12; pp. 46 - 48
Main Author 刘磊 吴玉平
Format Journal Article
LanguageChinese
Published 中国科学院微电子研究所,北京,100029 2014
Subjects
信号流
模拟电路布局
模拟退火
直流通路划分
设计约束
simulation annealing
analog placement
signal flow
模拟电路布局
模拟退火
直流通路划分
design constraints
DC channel clustering
设计约束
信号流
Online AccessGet full text
ISSN0258-7998

Cover

More Information
Summary:对模拟集成电路自动布局方法进行研究,提出基于直流通路划分的布局算法,结合直流通路顺序约束和电源方向上的位置约束,采用空间搜索布局算法提供初始布局,并用模拟退火算法进行迭代优化.使用工业界常用的电路做测试,实验结果表明,该方法可以在满足对称和邻近等约束的基础上产生紧凑的布局结果,并且最小化直流通路和信号流路径的寄生效应.
Bibliography:Liu Lei,Wu Yuping（Institute of Microelectronics of Chinese Academy of Sciences, Beijing 100029, China）
This paper studies the methods of analog placement,and gives a method with the combination of DC channel clus tering signal flow sequence constraints and current flow constraints.It uses the free space search algorithm to get the initial placement and the simulation annealing algorithm to reach the optimized placement,and we test it with several practical industry circuits.The results show that our method can generate compact placements fitting the symmetry and proximity constraints as well as the minimized parasitic effects on DC paths and signal paths.
analog placement ; DC channel clustering ; design constraints ; signal flow ; simulation annealing
11-2305/TN
ISSN:0258-7998