Unlock instant, AI-driven research and patent intelligence for your innovation.

Stamper, imprinting method, and method of manufacturing an information recording medium

A technology of information recording and molding, which is applied in the manufacture of optical record carriers, optical record carriers, disc carriers, etc., to achieve the effect that recording and playback errors are not easy

Inactive Publication Date: 2007-05-23
TDK CORPARATION
View PDF1 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, in the conventional imprint method, there is a problem that it is difficult to form the length (opening length) of each concave portion 24z to a desired size after the residue is removed (after the etching process) when the concave-convex pattern is formed on the base material 18z.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Stamper, imprinting method, and method of manufacturing an information recording medium
  • Stamper, imprinting method, and method of manufacturing an information recording medium
  • Stamper, imprinting method, and method of manufacturing an information recording medium

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0076] Hereinafter, the best mode of the stamper, the imprint method and the manufacturing method of the information recording medium of the present invention will be described with reference to the drawings.

[0077] First, the structure of an imprint apparatus 100 for manufacturing an information recording medium using the stamper of the present invention will be described with reference to the drawings.

[0078] The imprint apparatus 100 shown in FIG. 1 is equipped with a press machine 110 and a control unit 120, and can press the stamper 20 (refer to FIG. 5 ) when manufacturing the information recording medium shown in FIGS. 2 and 3 according to the imprint method of the present invention. On the intermediate body 10 (see FIG. 4 ), a structural view of a concavo-convex pattern 36 (see FIG. 23 ) is formed. In this case, the information recording medium 1 is a magnetic recording medium of the disk read track type. As shown in FIG. They are arranged alternately with the serv...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
thicknessaaaaaaaaaa
thicknessaaaaaaaaaa
thicknessaaaaaaaaaa
Login to View More

Abstract

A stamper has stamper-side concave / convex patterns forming a concave part having desired open length with high accuracy and is capable of manufacturing an information recording medium on which data track patterns and servo patterns are formed by concave / convex patterns. A plurality of types of convex parts with different heights from a reference plane, which is set between a front surface and a rear surface, to protruding ends of the convex parts are formed in the stamper-side concave / convex patterns. Second convex parts, at least one part of which has the height that is higher than the height of a highest first convex part out of the convex parts formed in regions corresponding to the data track patterns, are formed in regions corresponding to the servo patterns.

Description

technical field [0001] The present invention relates to a stamper used in the manufacture of information recording media, an imprinting method of pressing the stamper on a resin layer formed on the surface of a base material to copy its concave-convex shape, and manufacturing An information recording medium manufacturing method for an information recording medium. Background technique [0002] In the process of manufacturing an information recording medium, photolithography is conventionally known as a method of forming a fine uneven pattern (resist pattern) on a resist layer (resin layer) formed on the surface of a base material. In this photolithography method, a resist layer formed on a base material is irradiated with light to form an exposure pattern, and then the resist layer is developed to form a concave-convex pattern on the base material. In addition, in recent years, as a technique for forming finer patterns, electron beam lithography, which draws nanometer-sized...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): B29C33/42B29C59/02G11B7/26B29L17/00B81C99/00
CPCB82Y10/00G11B23/0057G11B5/855B82Y40/00G03F7/0002
Inventor 服部一博岛山和也
Owner TDK CORPARATION