| 摘要 |
<P>PROBLEM TO BE SOLVED: To solve the following problem: although a surface-mounted LED device is frequently used which has silver plating with high reflectivity on a wiring conductor portion surface irradiated with LED emitted light so as to have conductivity and reflection characteristics on a surface where an LED is mounted, the surface-mounted LED device does not have satisfactory stabilities of luminance and chromaticity due to discoloration of silver and does not have satisfactory longer life while a white LED device for lighting using an LED chip having a short wavelength and high luminance is desirable. <P>SOLUTION: A step of manufacturing an ordinary LED device includes a step of applying a SiO<SB>2</SB>coating liquid onto a base material and carrying out a heat treatment after an LED chip is mounted on the base material and wired. <P>COPYRIGHT: (C)2010,JPO&INPIT |
