標題: ECO Optimization Using Metal-Configurable Gate-Array Spare Cells
作者: Chang, Hua-Yu
Hui-Ru, Iris
Chang, Yao-Wen
電子工程學系及電子研究所
Department of Electronics Engineering and Institute of Electronics
關鍵字: Engineering change order;gate array;mixed integer linear programming
公開日期: 1-十一月-2013
摘要: Due to the rapidly increasing design complexity in modern IC designs, metal-only engineering change order (ECO) becomes inevitable to achieve design closure with a low respin cost. Traditionally, preplaced redundant standard cells are regarded as spare cells. However, these cells are limited by predefined functionalities and locations, and they always consume leakage power despite their inputs being tied off. To overcome the inflexibility and power overhead, a new type of spare cells, called metal-configurable gate-array spare cells, are introduced. In this paper, we address a new ECO problem, which performs design changes using metal-configurable gate-array spare cells. We first study the properties of this new ECO problem and propose a new cost metric, aliveness, to model the capability of a spare gate array. Based on aliveness and routability, we then develop two ECO optimization frameworks, one for timing ECO and the other for functional ECO. Experimental results show that our approach delivers superior efficiency and effectiveness.
URI: http://dx.doi.org/10.1109/TCAD.2013.2272540
http://hdl.handle.net/11536/22949
ISSN: 0278-0070
DOI: 10.1109/TCAD.2013.2272540
期刊: IEEE TRANSACTIONS ON COMPUTER-AIDED DESIGN OF INTEGRATED CIRCUITS AND SYSTEMS
Volume: 32
Issue: 11
起始頁: 1722
結束頁: 1733
顯示於類別:期刊論文


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  1. 000325975600007.pdf