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Metal template

A metal mold, metal technology, applied in the direction of chromate treatment, optical recording carrier, electrolysis process, etc., can solve the problems of high cost, unfavorable use, unfavorable mold release of chromium metal, etc., to achieve high safety, reduce cost, reduce the effect of failure

Inactive Publication Date: 2003-07-02
PRODISC TECH INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Although the above method can be used for small-sized metal mold substrates, there will be problems if it is used for metal mold substrates of large-scale optical rear projection components. Mold base plate, while the cost of chromium metal is high, which is not conducive to the use
In addition, the pattern size of the metal mold substrate of the optical rear projection element is much larger than that of the optical disk metal mold substrate. If chromium metal is used, it will be unfavorable to release the mold.

Method used

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Embodiment Construction

[0025] A metal stencil according to an embodiment of the present invention will be described below with reference to related drawings, wherein the same elements will be described with the same reference symbols.

[0026] Please refer to Figure 2A and Figure 2B As shown, a metal stencil 1 according to the first embodiment of the present invention includes a metal stencil base 11 and a passivation film 13 . Wherein, the metal mold base 11 is a nickel metal mold base 111, and the size of the nickel metal mold base 111 is above 30 inches (76.2 cm), and its thickness is in the range of 0.5 mm to 2.5 mm. In addition, an arc pattern 12 is formed on its surface. Here, the arc pattern 12 can be a concentric circle pattern 121 (such as Figure 2A ) and a spiral pattern 122 (such as Figure 2B ).

[0027] image 3 Shown is Figure 2A The sectional view obtained along the A-A' tangent line is shown, while Figure 2B The sectional view obtained along the A-A' tangent line shown is...

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Abstract

A metal form is composed of a metal form baseplate whose surface has circular grain pattern, and has a passivated film formed on the surface of metal substrate by electrolysis. During electrolysis, the antioxidizing agent solution, bichromate solution, degreasing agent, or sodium hydroxide solution can be used.

Description

technical field [0001] The present invention relates to a metal stencil, in particular to a metal stencil used in a large size (area 2480cm 2 above) metal stencils on rear projection components. Background technique [0002] In order to protect the original metal mold substrate when making optical rear projection components or optical discs, the industry usually utilizes the original metal mold substrate to copy it into another master template or a sub-template for application. [0003] For the production of small-sized optical discs, due to the small area of ​​the mold substrate and the finer pitch of the lines, the industry usually forms a blunt metal plate on the metal mold substrate when replicating the mold substrate. chemical film, and then form an electroplating layer on the passivation film by electroplating. Afterwards, according to the principle of the potential energy difference between the passivation film, the metal mold base and the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C25D1/10C25D1/20C25D11/38G11B7/26
Inventor 黄必达邱昌模蔡曜徽
Owner PRODISC TECH INC