%0 Journal Article
%T FPCS: A Placement and Floorplanning System for Building Block Layout<br>FPCS——一种适用于积木块方式的布局及平面规划系统
%A Bo Jianguo/Beijing Software Lab
%A Academia Sinica
%A BeijingYu Mingyong/Beijing Software Lab
%A Academia Sinica
%A BeijingYin Jinbai/Beijing Software Lab
%A Academia Sinica
%A BeijingZhuang Wenjun/Beijing Software Lab
%A Academia Sinica
%A BeijingHong Xianlong/
%A <br>薄建国
%A 俞明永
%A 尹锦柏
%A 庄文君
%A 洪先龙
%A 连永君
%J 半导体学报
%D 1991
%I 
%X A hierarchical placement and floorplanning algorithm,combining the goal of blocks ar-rangement and orientation at top-down manner with the one at bottom-up clustering, are desc-ribed. Based on the size, shapes, pin positions, connective relations of the blocks and pad posi-tions of the chip, several optimizations of block groups with routing area estimated accordingto technology conditions at each level are created so that to reach the optimal placement. If theflexible blocks are included, the system can be optimized by resizing these blocks constrainedto their areas or aspect ratio within their possible numbers. The placement and floorplanningresult can be matched with the one of routing due to many effective methods in the system.Some results and comparisons with other methods are also given.
%K Building block layout
%K Floorplanning
%K Custom and ASIC VLSI design<br>VLSI
%K 积木块
%K 平面规划
%K 布线
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=1319827C0C74AAE8D654BEA21B7F54D3&jid=025C8057C4D37C4BA0041DC7DE7C758F&aid=9687A7AB570B1212FF42D6D7A4B0D173&yid=116CB34717B0B183&vid=59906B3B2830C2C5&iid=CA4FD0336C81A37A&sid=94E7F66E6C42FA23&eid=286FB2D22CF8D013&journal_id=1674-4926&journal_name=半导体学报&referenced_num=1&reference_num=12