在ICC2(Cadence Innovus IC Compiler II)中,布局阻塞(Placement Blockage)是一种用于限制标准单元(standard cell)或宏单元(macro cell)在芯片布局过程中放置区域的技术。通过定义布局阻塞,设计师可以控制哪些区域可以放置单元,哪些区域不可以,从而优化芯片的布局、布线以及最终的性能。 为何需要为库单元(Lib Cell)创建布...
Macro_Only:打macro_only blockage的区域,不允许Macro Placer摆放macro. 但是对standard cell来说, 可以任意摆放,相当于一个free area. 对应于下图右上角。 使用方法就是点一下这个键,然后在GUI上圈住想要打placement blockage的区域。点击F3出现如下设置界面。可以选择placement blockage的类型,以及partial blockage的密...
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With the help of the analytical method was various design objects with different placement tried systematically on a courtyard, both individually and in various groupings. The investigation revealed that in order to create a complete blockage of visual exposure needed trees and bushes (or similar) ...