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APPARATUS AND METHODS FOR PREDICTING A SEMICONDUCTOR PARAMETER ACROSS AN AREA OF THE WAFER
APPARATUS AND METHODS FOR PREDICTING A SEMICONDUCTOR PARAMETER ACROSS AN AREA OF THE WAFER
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机译:沿晶圆区域预测半导体参数的装置和方法
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摘要
Apparatus and methods are provided for predicting a plurality of unknown parameter values (e.g. overlay error or critical dimension) using a plurality of known parameter values. In one embodiment, the method involves training a neural network to predict the plurality of parameter values. In other embodiments, the prediction process does not depend on an optical property of a photolithography tool. Such predictions may be used to determine wafer lot disposition.
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