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Improved manufacturability by OPC based on defocus data

机译:OPC基于散焦数据改善了可制造性

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The paper describes the advantages of optical proximity correction (OPC) based on defocus data instead of best focus data. By additionally accepting asymmetric variations of the dimension of different patterns e.g. for an isolated line that can become wider than its nominal width this method can deliver structures much more robust against opens and shorts than in the standard OPC approach which is based on data taken at best process conditions. The differences of both OPC methods are compared based on simulations and checked against experimental data of characteristic IC patterns.
机译:本文介绍了基于散焦数据而不是最佳聚焦数据的光学邻近校正(OPC)的优势。通过另外接受不同图案的尺寸的不对称变化,例如对于可以变得比其标称宽度更宽的隔离线,该方法可以提供比基于最佳工艺条件下采集的数据的标准OPC方法更强的抗断路和短路性能。基于仿真比较两种OPC方法的差异,并对照特征IC图案的实验数据进行检查。

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