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Etchant composition, method for forming metal pattern, and method for manufacturing array substrate

A technology of composition and etchant, which is applied in the direction of surface etching composition, chemical instrument and method, semiconductor/solid-state device manufacturing, etc., and can solve problems such as damage to the lower data line

Active Publication Date: 2018-11-13
DONGWOO FINE CHEM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the etchant composition has a problem in that although the composition etches the silver / silver / silver of the transparent electrode film assembly of the transparent electrode and prevents the corrosion of its transparent electrode film, the phosphoric acid contained in the composition damages the transparent electrode film. Lower data line

Method used

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  • Etchant composition, method for forming metal pattern, and method for manufacturing array substrate
  • Etchant composition, method for forming metal pattern, and method for manufacturing array substrate
  • Etchant composition, method for forming metal pattern, and method for manufacturing array substrate

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Embodiment 1 to Embodiment 5 and comparative example 1 to comparative example 4

[0051] An etchant composition having a weight of 10 kg was prepared by the composition ratio shown in Table 1 below.

[0052] [Table 1]

[0053]

[0054] (Unit: wt%)

[0055] Azoles: 5-ATZ (5-aminotetrazole)

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Abstract

The present application discloses an etchant composition, a method of forming a metal pattern, and a method of manufacturing an array substrate for an organic light emitting display. The etchant composition is for a single layer film of silver (Ag) or silver alloy, or a multilayer film comprising the single layer film and an indium oxide film, based on the total weight of the etchant composition, The etchant composition comprises: 6.0-8.0wt% nitric acid; 8.0-12.0wt% sulfuric acid; 8.0-10.0wt% potassium hydrogen peroxosulfate; 0.5-3.0wt% organic acid; water.

Description

[0001] Cross References to Related Applications [0002] This application claims the benefit of Korean Patent Application No. 10-2012-0151915 filed on December 24, 2012, which is hereby incorporated by reference in its entirety. technical field [0003] The present application relates to an etchant composition for a single-layer film of silver (Ag) or silver alloy, or a multi-layer film consisting of the single-layer film and an indium oxide film; The present application also relates to a method for forming a metal pattern by using the etchant composition; and a method for manufacturing an array substrate for an organic light emitting diode by using the etchant composition. Background technique [0004] An organic light emitting diode includes two opposing electrodes and an organic multilayer thin film having semiconductor properties and disposed between the two opposing electrodes. The organic light-emitting diode uses an organic light-emitting phenomenon in which an organ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C23F1/30H01L21/77H01L21/28H01L27/32
CPCC23F1/30C23F1/02C09K13/06C23F1/44H10K71/60
Inventor 张尚勋沈庆辅李昔准
Owner DONGWOO FINE CHEM CO LTD
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