CMP CoO reduction: slurry reprocessing

被引:19
作者
Bibby, TFA [1 ]
Adams, JA [1 ]
Holland, K [1 ]
Krulik, GA [1 ]
Parikh, P [1 ]
机构
[1] IPEC, Planar, Phoenix, AZ 85034 USA
关键词
chemical mechanical planarization; oxide; slurry; reprocessing;
D O I
10.1016/S0040-6090(97)00496-3
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
Initial results of chemical mechanical planarization (CMP) of 8 inch diameter thermal oxide (TOX) and TEOS sheet film semiconductor wafers using CMP slurry that have been reprocessed are presented. The slurry is reprocessed in an on-line system that has been fitted onto an IPEC Planar model 472 CMP system. Slurry consumption during the testing was at one-fifth of normal CMP slurry consumption for the system. CMP results showed no differences between wafers polished with 100% fresh slurry and those polished with reprocessed slurry. (C) 1997 Elsevier Science S.A.
引用
收藏
页码:538 / 542
页数:5
相关论文
共 3 条
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CADIEN KC, 1994, Patent No. 5340370
[2]  
CHANDLER FW, 1994, Patent No. 5299393
[3]  
COTE JW, 1990, Patent No. 4910155