Patent ID: 8472020
Filing Date: 2013-06-25
Classification: G01N,G11B

Abstract:
1. A method for enhancing yields in an optical recording media manufacturing process, by monitoring dye polymer formation on glass, said method comprising the steps of: (a) coating a glass substrate with a dye polymer layer; (b) scanning the dye polymer coated glass substrate to detect defects; (c) discarding the dye-polymer coated glass without data written on the dye-polymer coated glass if the defects detected in step (b) are at or above an unacceptable threshold level; and (d) writing data on the dye polymer coated glass if the defects detected in step (b) are below the unacceptable threshold level and utilizing the dye polymer coated glass bearing the data in said optical recording media manufacturing process, wherein said scanning in step (b) occurs prior to writing to the dye polymer coated glass, and wherein the scanning in step (b) does not cause marks or pits to be formed in the dye polymer layer, and does not change physical properties of the dye polymer coated substrate.