Several routing topology flexibilities are expressed through the concepts of a soft edge and a slideable Steiner node, and can be exploited for congestion reduction under timing constraints.

• 文章引入软边和滑动斯坦那点的概念，使布线的拓扑结构具有灵活性，使得总体布线在满足时延约束的情况下，可以有效缩减线网的拥塞度。