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Browsing by Author "Tan, Chuan-Yao"

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    Recent Research Development in Metal-Only ECO
    (2011)
    Tan, Chuan-Yao
    ;
    Jiang, Iris Hui-Ru
    ;
    電子工程學系及電子研究所
    ;
    Department of Electronics Engineering and Institute of Electronics
    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.