发明名称 |
Verfahren zur Defekterkennung in Mustern aus alternierend angeordneten Linien und Zwischenräumen auf einem Wafer |
摘要 |
A method for correcting color variations on the surface of a wafer, a method for selectively detecting a defect from different patterns, and computer readable recording media for the same are provided. Color variations in images of different parts of a wafer can be corrected using the mean and standard deviation of grey level values for the pixels forming each of the different parts of the wafer. In addition, different threshold values are applied to metal interconnect patterns and spaces of the wafer so that a defect can be selectively detected from the different patterns. Thus, a bridge known as a fatal, or killing defect to a semiconductor device can be detected without also falsely detecting grains as fatal defects. Due to increased defect screening capacity of the methods, the defect detecting method can be further efficiently managed. |
申请公布号 |
DE10221318(B4) |
申请公布日期 |
2009.01.08 |
申请号 |
DE2002121318 |
申请日期 |
2002.05.06 |
申请人 |
SAMSUNG ELECTRONICS CO. LTD. |
发明人 |
JUN, CHUNG-SAM;CHON, SANG-MUN;KIM, HYOUNG-JIN;LEE, DONG-CHUN;CHOI, SANG-BONG;RYU, SUNG-GON |
分类号 |
G01N21/956;H01L21/66;G06T1/00;G06T5/00;G06T7/40 |
主分类号 |
G01N21/956 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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