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Triple Patterning Aware Detailed Placement Toward Zero Cross-Row Middle-of-Line Conflict | IEEE Journals & Magazine | IEEE Xplore

Triple Patterning Aware Detailed Placement Toward Zero Cross-Row Middle-of-Line Conflict


Abstract:

Triple patterning lithography (TPL) is one of the most promising lithography technology in sub-14-nm technology nodes, especially for complicated low metal layer manufact...Show More

Abstract:

Triple patterning lithography (TPL) is one of the most promising lithography technology in sub-14-nm technology nodes, especially for complicated low metal layer manufacturing. To overcome the intracell routability problem and improve the cell regularity, recently middle-of-line (MOL) layers are employed in standard cell design. However, MOL layers may introduce a large amount of cross-row TPL conflicts for row-based design. Motivated by this challenge, in this paper we propose the first TPL aware detailed placement toward zero cross-row MOL conflict. In standard cell precoloring, Boolean-based look-up table is proposed to reduce solution space. In detailed placement stage, three powerful techniques, i.e., local reordered single row refinement, min-cost flow-based conflict removal, and local cell interleaving, are proposed to provide zero TPL conflict solution. The experimental results demonstrate the effectiveness of our proposed methodologies.
Page(s): 1140 - 1152
Date of Publication: 05 January 2017

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