Master plate for fabricating a stamper plate, stamper plate, storage medium, and method for fabricating the master plate, stamper plate and storage medium
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United States of America Patent
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Issued Date -
Feb 2, 2006
app pub date -
Oct 28, 2003
filing date -
Oct 28, 2002
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A master plate for fabricating a stamper plate for production of an optical storage medium with information such as a CD or DVD. The master plate has a substrate and a photoresist layer applied thereto, while parts of the photoresist layer exposed to light of a prederetermined frequency are soluble in a solvent, wherein the solubility exhibits a trend along the normal to the photoresist layer, the solubility on the side near the substrate being less than the solubility on the opposite side of the photoreist layer. The invention further relates to a stamper plate and an optical storage medium with information as such, and to a method for manufacturing a master plate, stamper plate and optical storage medium with information.
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