发明名称 METHOD OF EVALUATING SEMICONDUCTOR WAFER, AND DEVICE FOR EVALUATING THE SAME
摘要 <P>PROBLEM TO BE SOLVED: To provide a method and a device for evaluating a semiconductor wafer, which highly accurately evaluate the BMD (Bulk Micro Defect) density distribution by obtaining the BMD density over the entire surface of the semiconductor wafer in a short time period for impurity analysis of a silicon substrate. Ž<P>SOLUTION: In the method of evaluating the density of BMD in the semiconductor wafer, the ferro-excited micro PL (Photo Luminescence) value over the entire surface of the semiconductor wafer is measured, then, the BMD densities at a plurality of in-plane positions of the semiconductor wafer are measured, a relational expression between the ferro-excited micro PL value and the BMD density at the same position of the semiconductor wafer is obtained, and the BMD density over the entire surface of the semiconductor wafer is numerically expressed from the obtained relational expression using the ferro-excited micro PL value over the entire surface of the semiconductor wafer to evaluate the BMD density distribution. Ž<P>COPYRIGHT: (C)2010,JPO&INPIT Ž
申请公布号 JP2010118372(A) 申请公布日期 2010.05.27
申请号 JP20080288394 申请日期 2008.11.11
申请人 SHIN ETSU HANDOTAI CO LTD 发明人 SATO HIDEKI
分类号 H01L21/66 主分类号 H01L21/66
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