Process and reliability risks have become critically important during mass production at advanced technology nodes even with Extreme Ultraviolet Lithography (EUV) illumination. In this work, we propose a design-for-manufacturability solution using a set of new rules to detect high risk design layout patterns. The proposed methods improve design margins while avoiding area overhead and complex design restrictions. In addition, the proposed method introduces an in-design pattern replacement with automatically generated fixing hints to improve all matched locations with identified patterns.
Continuous scaling of CMOS process technology to 7nm (and below) has introduced new constraints and challenges in determining Design-for-Yield (DFY) solutions. In this work, traditional solutions such as improvements in redundancy and in compensating target designs for low process window margins are extended to meet the additional constraints of complex 7nm design rules. Experiments conducted on 7nm industrial designs demonstrate that the proposed solution achieves 9.1%-41% redundant-via-rate improvements while ensuring all 7nm design rule constraints are met.
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