DIE ON WHICH FINE GROOVES ARE FORMED, AND METHOD FOR MANUFACTURING THE SAME

PROBLEM TO BE SOLVED: To provide a molding die and a method for manufacturing the die which are capable of molding a product having an anti-reflection structure and yet manufacturing the product by a method other than lithography technique or etching technique.SOLUTION: There is provided a molding d...

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Format: Patent
Sprache:eng ; jpn
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Zusammenfassung:PROBLEM TO BE SOLVED: To provide a molding die and a method for manufacturing the die which are capable of molding a product having an anti-reflection structure and yet manufacturing the product by a method other than lithography technique or etching technique.SOLUTION: There is provided a molding die equipped with fine grooves for molding an object by molding surface, in which plating processing is applied on a part or all of the molding surface, a plurality of groove parts having a pitch at 400nm or less and a depth at 400nm or more are formed on a plated layer having a uniform thickness, which is formed by the plating processing, by a cutting work, shapes of the groove parts or a projection parts which exist between the groove parts have sharp ends in a vertical cross-sectional shape in a direction crossing an extending direction of the groove parts.SELECTED DRAWING: Figure 1 【課題】反射防止構造を有する製品を成形可能でありながらも、リソグラフィ技術やエッチング技術以外の方法で製造する事のできる成形用金型、及びその製造方法を提供すること。【解決手段】成形面によって物体を成形するための成形用金型であって、当該成形面の一部または全部にはメッキ加工が施されており、当該メッキ加工によって形成された均一な厚さのメッキ層には、ピッチが400nm以下で、且つ深さが400nm以上の溝部が、切削加工によって複数形成されており、当該溝部、又は当該溝部同士の間に存在する突起部の形状は、溝部の延伸方向に交差する向きの縦断面形状において、端部が尖っている、微細溝を備えた成形用金型とする。【選択図】図1