Method of manufacturing stamper, method of manufacturing resin molded article, and stamper
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United States of America Patent
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Nov 2, 2010
Grant Date -
Nov 19, 2009
app pub date -
May 5, 2009
filing date -
May 14, 2008
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A stamper manufacturing method comprises: forming a stamper body so as to have a concave/convex pattern on one surface and a crystalline structure on at least a side toward the other surface; forming a layer having an amorphous structure on the other surface side of the stamper body; and polishing a surface of the layer having the amorphous structure. A resin molded article manufacturing method includes an injection molding process using the stamper as a prototype so as to transfer the concave/convex pattern of the stamper to a resin material. A stamper comprises a stamper body which is formed so as to have a concave/convex pattern on one surface and have a crystalline structure on at least a side toward the other surface. In the stamper, a layer having an amorphous structure and a surface of which is polished is formed on the other surface side of the stamper body.
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