X-Geometry Clock TreeConstruction withWirelength andViaMinimization
Chun-Hao WangandWai-Kei Mak · 2007
(a) )-geometry routing provides moreavailable routing directions on DEVialocation different metallayers forchip interconnection toreduce wirelength. Metal 2 However, itcanlead toasignificant increase inviacost. Inthis paper, H KK i we consider X-geometry zero-skew clocktreeconstruction with Metal 1 wirelength andviaminimization. OurX-geometry clockrouter (b) (C) achieves, on average, a 7.57%wirelength reduction intheYMetal 4 architecture and9,6800 intheX-architecture whencompared with Metal 3 / ~~Metal 3 results intheMa-nhattan architecture. Inaddition, we also propose aMea3 dynamic programming approach todetermine theone-bend routes of Metal 2 Metal2 theclock edges tooptimize thetotal nodeviacostofthewholeclock Met2a