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Mould kernel and its processing method

A processing method and mold core technology, which is applied in the field of mold core and its processing, can solve the problem that the mold core processing method is not easy to control the precision, etc., and achieve the effect of easier processing precision and control processing precision

Inactive Publication Date: 2004-10-06
HONG FU JIN PRECISION IND (SHENZHEN) CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the technical problem that the existing mold core processing method is difficult to control the precision, the present invention provides a mold core processing method that is easier to control the precision

Method used

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  • Mould kernel and its processing method

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Embodiment Construction

[0016] The mold core processing method of the present invention includes the following steps: providing a substrate; forming a plurality of stepped multi-step circular grooves on the substrate by photolithography and chemical etching processes, so as to obtain the mold core.

[0017] like figure 1 As shown, firstly, a substrate 100 is provided, which includes a surface 110 . The shape of the substrate 100 is a flat plate, of course, other shapes can also be adopted according to the needs of the mold. The material of the substrate 100 is generally nickel metal, which has a relatively high hardness and can meet the hardness requirement of the mold core.

[0018] The second step of the mold core processing method of the present invention is to perform multiple photolithography and chemical etching processes on the substrate, that is, to use multiple photomasks (not shown). The photolithography process is to transfer a pre-designed circuit pattern to a photomask, and use a speci...

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Abstract

A technology for preparing die includes providing a substrate, and photoetching and chemical corrosion several times to generate multiple multi-step circular recesses.

Description

【Technical field】 [0001] The invention relates to a mold core and a processing method thereof. 【Background technique】 [0002] The processing of the mold core generally includes mechanical processing and chemical etching. The mechanical processing method is simple in operation and low in processing cost, so it is a more commonly used method. However, due to the processing requirements of certain precision components, the precision of mold core processing must be strictly controlled, and the machining method is not easy to control the precision, so it cannot meet the processing of precision components. [0003] The chemical etching method is to use the photolithography process to transfer the design pattern on the mask to the mold core processing substrate, and then use a chemical solution to chemically etch the substrate to obtain a pre-designed structure. The chemical etching method can adjust the process parameters, so it is easier to control the precision of the mold cor...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23P15/24
Inventor 余泰成吕昌岳陈杰良
Owner HONG FU JIN PRECISION IND (SHENZHEN) CO LTD