Fine metal mask manufacturing method

Abstract

Provided are a method for manufacturing a mold for manufacturing a fine metal mask and a method for manufacturing a fine metal mask, with which it is possible to obtain a mold capable of manufacturing a fine metal mask that can be permanently used, saves material costs, and improves productivity, and with which it is possible to manufacture a large-area fine metal mask, and with which it is possible to reduce a process defect rate, and to improve a yield. The method for manufacturing a mold for manufacturing a fine metal mask according to the present invention comprises the steps of: forming an insulating part corresponding to a slit shape of a fine metal mask on a manufacturing substrate; forming a conductive layer on the surface of the insulating part; forming a first metal layer on the manufacturing substrate by an electroforming plating process and separating to form a preliminary mold; and forming a second metal layer on the preliminary mold by an electroforming plating process and separating to form a fine metal mask manufacturing mold.

Description

[0001] This application is a divisional application of a patent application with an application date of May 13, 2020 and an application number of 202080051095.3, entitled "Mold Manufacturing Method for Fine Metal Mask Manufacturing and Fine Metal Mask Manufacturing Method". technical field [0002] The present invention relates to a mold manufacturing method for manufacturing a fine metal mask and a manufacturing method of a fine metal mask, in particular to a mold capable of producing a fine metal mask that can be used permanently, saves material costs and improves productivity, In addition, a mold manufacturing method and a fine metal mask manufacturing method for manufacturing a fine metal mask capable of manufacturing a large-area fine metal mask while reducing the process defect rate and improving the yield rate can be produced. Background technique [0003] Organic Light Emitting Diodes (OLED: Organic Light Emitting Diodes) components not only have the characteristics o...

AI Technical Summary

Problems solved by technology

Such a fine metal mask is mainly used in the manufacture of small OLED display devices, but for the glass used to manufacture large-scale displays, the central part will sag toward the bottom when the size becomes larger, so the alignment with the fine metal mask is difficult. problems preventing the application of fine metal masks

[0007] Moreover, as the resolution gradually increases, the thickness of the fine metal mask should also be relatively thinner, but in the existing rolling process, there is a technical limit to thinning to more than a predetermined thickness

Recently, the manufacture of a fine metal mask using an electroforming plating process has been in progress, but it has not been commercialized due to various difficulties in the manufacturing process due to thinning of the thickness of the fine metal mask

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