Referenced Items are not available for this document.
CMP processes are known to be erratic and unstable. A simple control strategy is to predict the run-to-run process removal rate and then adjust the processing time based on the prediction. EWMA and PCC techniques are two most often used prediction techniques. In this work, we revise the PCC design to take into account the ages of the abrasive pad and conditioning disc. It is shown that the proposed age-based technique can significantly improve the prediction capability and, thus, the control efficiency over conventional techniques
Published in:
Semiconductor Manufacturing Conference Proceedings, 1999 IEEE International Symposium on
Date of Conference: 1999
- Page(s):
- 229 - 232
- Meeting Date :
- 11 Oct 1999-13 Oct 1999
- ISSN :
- 1523-553X
- Print ISBN:
- 0-7803-5403-6
- INSPEC Accession Number:
- 6529167
- Conference Location :
- Santa Clara, CA
- Digital Object Identifier :
- 10.1109/ISSM.1999.808778
- Product Type:
- Conference Publications
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