Proceedings of the 2016 on International Symposium on Physical Design 2016
DOI: 10.1145/2872334.2872352
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Concurrent Guiding Template Assignment and Redundant via Insertion for DSA-MP Hybrid Lithography

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Cited by 17 publications
(4 citation statements)
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“…Heuristics and exact approaches for multiple patterning with DSA (and variants) have been investigated in [5,12,26,37,38,43]. Note that in all studies, the number of patterning steps is fixed and the goal is to group vias into feasible guiding patterns so as to minimize the number of conflicts remaining (allowing sometimes for the insertion of redundant vias).…”
Section: Mask After 3-mask Splitmentioning
confidence: 99%
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“…Heuristics and exact approaches for multiple patterning with DSA (and variants) have been investigated in [5,12,26,37,38,43]. Note that in all studies, the number of patterning steps is fixed and the goal is to group vias into feasible guiding patterns so as to minimize the number of conflicts remaining (allowing sometimes for the insertion of redundant vias).…”
Section: Mask After 3-mask Splitmentioning
confidence: 99%
“…In principle, it would be possible to use the exact methods developed in some prior studies in parallel: run the algorithm for a given number of patterning steps and then verify for which number of patterning steps zero coloring conflicts emerge. However, most of these methods either employ heuristics to accelerate finding a coloring solution at a large scale (and hence no longer guaranteeing optimality) [37,43], propose formulations that do not work for any number of patterning steps [5,26], or exploit additional structures and/or placement options [12,26,38]. In our case, given that the objective is to formally find the minimum number of patterning steps required for (large scale) layouts, we do not build on the methods developed in prior research.…”
Section: Mask After 3-mask Splitmentioning
confidence: 99%
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“…Several works [8], [9], [10], [11] have addressed the problem of simultaneous DSA Grouping and Mask assignment for hybrid DSA-MP technologies. Ou et al [12] solved the same problem while adding redundant vias, while Lin et al [13] added cut redistribution. DSA-aware routing has been addressed in [14] for DSA+Double Patterning (DP) technology.…”
Section: Prior Work In Dsa-mpmentioning
confidence: 99%