Patent 8108805 was granted and assigned to Tokyo Electron on January, 2012 by the United States Patent and Trademark Office.
The invention provides apparatus and methods for processing substrates using pooled statistically based variance data. The statistically based variance data can include Pooled Polymer De-protection Variance (PPDV) data that can be used to determine micro-bridging defect data, LER defect data, and LWR defect data.