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Application filed by Prodisc Technology IncfiledCriticalProdisc Technology Inc
Priority to TW94106728ApriorityCriticalpatent/TWI271732B/en
Publication of TW200632900ApublicationCriticalpatent/TW200632900A/en
Application grantedgrantedCritical
Publication of TWI271732BpublicationCriticalpatent/TWI271732B/en
A preparation method of a disc master includes coating a photoresist layer above a substrate having a embossed area and a rewritable area, laser beam recording and developing the photoresist layer, first reactive ion etching the embossed area of the substrate, second ion etching the photoresist layer, third reactive ion etching the embossed area and the rewritable area of the substrate, and removing the photoresist layer.
TW94106728A2005-03-042005-03-04Preparation method of disc master
TWI271732B
(en)
Fabrication method of stamper for optical information recording medium, master disk of stamper for optical information recording medium, and optical information recording medium