Abstract
An endpoint detection using the algorithm of principal component analysis based support vector machine was developed for the plasma etching process. Because many endpoint detection techniques use a few manually selected wavelengths, noise render them ineffective and it is hard to select the important wavelengths. So the principal component algorithm with the whole wavelengths has been developed for the more effective monitoring of end point. And the support vector regression was followed for the real-time end point detection with reduced wavelengths to save the processing time. This approach was applied and demonstrated for a metal etching process of Al and 0.5% Cu on the oxide stack with inductively coupled BCl2/Cl2 plasma.
| Original language | English |
|---|---|
| Title of host publication | Proceedings of the 17th World Congress, International Federation of Automatic Control, IFAC |
| Edition | 1 PART 1 |
| DOIs | |
| State | Published - 2008 |
| Event | 17th World Congress, International Federation of Automatic Control, IFAC - Seoul, Korea, Republic of Duration: 6 Jul 2008 → 11 Jul 2008 |
Publication series
| Name | IFAC Proceedings Volumes (IFAC-PapersOnline) |
|---|---|
| Number | 1 PART 1 |
| Volume | 17 |
| ISSN (Print) | 1474-6670 |
Conference
| Conference | 17th World Congress, International Federation of Automatic Control, IFAC |
|---|---|
| Country/Territory | Korea, Republic of |
| City | Seoul |
| Period | 6/07/08 → 11/07/08 |
UN SDGs
This output contributes to the following UN Sustainable Development Goals (SDGs)
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SDG 9 Industry, Innovation, and Infrastructure
Keywords
- Applications in semiconductor manufacturing
- Process modeling and identification
- Process observation and parameter estimation
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