| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a manufacturing method of a semiconductor light-emitting device having a small amount of color irregularity by suppressing the color irregularity in the semiconductor light-emitting device where a blue light-emitting device and a phosphor are combined. <P>SOLUTION: The chip-type light-emitting semiconductor device includes: a substrate; a blue LED mounted on the substrate; and a phosphor layer made of a mixture of yellow/yellowish phosphor particles and a base material for sealing the periphery of the blue LED. The yellow/yellowish phosphor particle is a silicate phosphor which absorbs blue light emitted by the blue LED to emit a fluorescence having a main emission peak in the wavelength range from 550 to 600 nm, inclusive, and which contains, as a main component, a compound expressed by the chemical formula: (Sr<SB>1-a1-b1-x</SB>Ba<SB>a1</SB>Ca<SB>b1</SB>Eu<SB>x</SB>)<SB>2</SB>SiO<SB>4</SB>(0≤a1≤0.3, 0≤b1≤0.8 and 0<x<1). The silicate phosphor particles disperse substantially evenly in the resin easily. As a result, excellent white light is obtained. <P>COPYRIGHT: (C)2007,JPO&INPIT |
