Etching composition and manufacturing method of organic light emitting display device

An embodiment of the invention provides an etching composition and a manufacturing method of an organic light emitting display device, the etching composition comprises, relative to total weight: 50-70 wt% of phosphoric acid; 0.5-5wt% of nitric acid, 0.1-1wt% of chloride; 0.5-5 wt% of a sulfonic aci...

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Bibliographische Detailangaben
Hauptverfasser: HYUNCHEOL SHIN, GYUPO KIM, HEESUNG YANG, SANGHYUK LEE, JONGHYUN CHOUNG, BYOUNGWOONG LEE, HONGSICK PARK
Format: Patent
Sprache:chi ; eng
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Zusammenfassung:An embodiment of the invention provides an etching composition and a manufacturing method of an organic light emitting display device, the etching composition comprises, relative to total weight: 50-70 wt% of phosphoric acid; 0.5-5wt% of nitric acid, 0.1-1wt% of chloride; 0.5-5 wt% of a sulfonic acid compound, and 20-40 wt% of water. 本发明的实施例提供种蚀刻液组合物以及有机发光显示装置的制造方法,所述蚀刻液组合物相对于总重量包括:磷酸,50至70重量%;硝酸,0.5至5重量%;氯化物,0.1至1重量%;磺酸化合物,0.5至5重量%;以及水,20至40重量%。