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METHOD OF MANUFACTURING LIGHT-EMITTING DEVICE

2025-06-19 02:472670下载
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PROBLEM TO BE SOLVED : To provide a method of manufacturing a light-emitting device which uses a sialon based phosphor and is highly efficient. SOLUTION : In one embodiment, a light-emitting element is mounted on the surface of a substrate. A mask in which a region where a light-emitting element is mounted is opened is placed on the substrate. The resin containing such phosphor as contains a composition represented by a general formula (1), being plate-like particles, with average particle size being 12 μm or larger, is applied on the mask. A resin except for the resin that has filled the opening part is removed from the mask surface using squeegee. The mask is removed from the substrate, and is subjected to a thermal treatment for curing the resin. (1) (M1-x1Eux1)3-ySi13-zAl3+zO2+uN21-w, where M is an element selected from among IA group element, IIA group element, IIIA group element, IIIB group element except for Al, rare earth element, and IVB group element. Here, x1, y, z, u, and w satisfy the following relation : 0
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