Identification of wafer defect clusters using a self-organizing multilayer perceptron

被引:0
|
作者
Huang, CJ [1 ]
机构
[1] Natl Taitung Teachers Coll, Dept Comp Sci & Informat Educ, Taitung 950, Taiwan
关键词
D O I
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中图分类号
TP18 [人工智能理论];
学科分类号
081104 ; 0812 ; 0835 ; 1405 ;
摘要
During an electrical testing stage, each die on a wafer must be tested to determine whether it functions as it was originally designed. In the case of a clustered defect on the wafer, such as scratches, stains, or localized failed patterns, the tester may riot detect all of the defective dies in the flawed area. To, avoid the defective dies proceeding to final assembly, a testing factory must assign five to ten workers to check the wafers and hand mark the defective dies in the flawed region or close to the flawed region. This work. proposes an automatic wafer-scale defect cluster identifier using a multilayer perceptron to detect the defect cluster and mark all the defective dies. The proposed work is also compared with an existing tool used in the. industry. The experimental results verify that our proposed algorithm is very effective in defect identification and achieves better performance than the existing tool.
引用
收藏
页码:839 / 843
页数:5
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