Invention Grant
- Patent Title: Die and method for manufacturing die, and anti-reflection coating
- Patent Title (中): 模具和模具的制造方法和防反射涂层
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Application No.: US13500515Application Date: 2010-10-12
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Publication No.: US09416461B2Publication Date: 2016-08-16
- Inventor: Chiaki Minari , Tokio Taguchi
- Applicant: Chiaki Minari , Tokio Taguchi
- Applicant Address: JP Osaka
- Assignee: SHARP KABUSHIKI KAISHA
- Current Assignee: SHARP KABUSHIKI KAISHA
- Current Assignee Address: JP Osaka
- Agency: Harness, Dickey & Pierce, P.L.C.
- Priority: JP2009-237777 20091014
- International Application: PCT/JP2010/067868 WO 20101012
- International Announcement: WO2011/046114 WO 20110421
- Main IPC: B28B7/36
- IPC: B28B7/36 ; C25D11/12 ; B29C33/42 ; B29C33/56 ; B29D11/00 ; C25D11/16 ; C25D11/24 ; G02B1/118 ; C25D11/04

Abstract:
A mold includes an anodized porous alumina layer over its surface. The anodized porous alumina layer has a plurality of first and second recessed portions. The plurality of second recessed portions have a two-dimensional size of not less than 190 nm and not more than 50 μm when viewed in a direction normal to the mold surface and have a plurality of minute recessed portions over its inner surface. The plurality of minute recessed portions have a two-dimensional size of not less than 10 nm and not more than 200 nm; and have a two-dimensional size of not less than 10 nm and not more than 200 nm. The plurality of first recessed portions are provided between the plurality of second recessed portions. The average value of the two-dimensional size of the plurality of second recessed portions is greater than that of the plurality of first recessed portions.
Public/Granted literature
- US20120200932A1 DIE AND METHOD FOR MANUFACTURING DIE, AND ANTI-REFLECTION COATING Public/Granted day:2012-08-09
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