Talk :Legalization Algorithms for Mixed-Cell-Height Standard Cells

报告人：软件工程系陈建利博士

报告时间：2016年12月27号，9:00am-10:00am

报告地点：数计学院4号楼第1报告厅

Abstract:

For circuit designs in advanced technologies, standard-cell libraries consist of cells with different heights; for example, the number of fins determines the height of cells in the FinFET technology. Such mixed cell heights incur new, complicated challenges forlayout designs, due mainly to the heterogeneity in cell dimensions andthus their larger solution spaces.There is not much published work on layout designs with mixed-height standard cells. This work addresses thelegalization problem of mixed-height standard cells, which intends to place cells without any overlap and with minimized displacement. We first study the properties of Abacus, generally considered the best legalization method for traditional single-row-height standard cells but criticized not suitable for handling the new challenge, analyze the capability and insufficiencies ofAbacus for tackling the new problem, and remedy Abacus’s insufficiencies and extend its advantages to develop effective and efficient algorithms for the addressed problem.