Title :
Recent research development in metal-only ECO
Author :
Chuan-Yao Tan ; Jiang, Iris Hui-Ru
Author_Institution :
Dept. of Electron. Eng., Nat. Chiao Tung Univ., Hsinchu, Taiwan
Abstract :
In order to reduce the re-spin cost, metal-only ECO rewires spare cells to realize incremental design changes by changing only the masks of metal layers. Metal-only ECO is widely adopted at IC design houses to resolve last found functional and/or timing failures. This task is challenging because these errors in modern IC design may be many, but the pre-injected spare cells are limited in quantity, in cell types, and in physical locations. In this paper, we first introduce the metal-only ECO flow and survey recent techniques for logic difference extraction, functional ECO and timing ECO optimization.
Keywords :
logic design; optimisation; IC design houses; functional ECO optimization; logic difference extraction; metal-only ECO rewires; preinjected spare cells; timing ECO optimization; Layout; Logic gates; Optimization; Timing; ECO; spare cells; technology remapping;
Conference_Titel :
Circuits and Systems (MWSCAS), 2011 IEEE 54th International Midwest Symposium on
Conference_Location :
Seoul
Print_ISBN :
978-1-61284-856-3
Electronic_ISBN :
1548-3746
DOI :
10.1109/MWSCAS.2011.6026534