发明名称 |
Polishing control using weighting with default sequence |
摘要 |
A method of controlling polishing includes storing a sequence of default values, polishing a substrate, monitoring the substrate during polishing with an in-situ monitoring system, generating a sequence of measured values from measurements from the in-situ monitoring system, combining the sequence of measured values with the sequence of default values to generate a sequence of modified values, fitting a function to the sequence of modified values, and determining at least one of a polishing endpoint or an adjustment for a polishing rate based on the function. |
申请公布号 |
US9296084(B2) |
申请公布日期 |
2016.03.29 |
申请号 |
US201213553038 |
申请日期 |
2012.07.19 |
申请人 |
Applied Materials, Inc. |
发明人 |
Zhang Jimin;Wang Zhihong;Lee Harry Q.;Tu Wen-Chiang |
分类号 |
B24B37/013;B24B37/10;B24B49/12 |
主分类号 |
B24B37/013 |
代理机构 |
Fish & Richardson P.C. |
代理人 |
Fish & Richardson P.C. |
主权项 |
1. A method of controlling polishing, comprising:
storing a sequence of default values; polishing a substrate; monitoring the substrate during polishing with an in-situ monitoring system; generating a sequence of measured values from measurements from the in-situ monitoring system; combining the sequence of measured values with the sequence of default values to generate a sequence of modified values; fitting a function to the sequence of modified values; and determining at least one of a polishing endpoint or an adjustment for a polishing rate based on the function. |
地址 |
Santa Clara CA US |