| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a mounting substrate improving the manufacturing yield and the mounting reliability of an LED light source device, and also to provide an LED light source device including the mounting substrate. <P>SOLUTION: On a component mounting surface 11a of the mounting substrate 11, an inclination preventive structure 20 which is in a square shape in top-surface view is formed projectingly, and an LED chip 10 in an inverted quadranglar pyramid shape is fixed in a square-shaped opening portion 20a. Even if the LED chip 10 is inclined to a normal of the component mounting surface 11a, the inclination preventive structure 20 suppresses a larger inclination to suppress a decrease in light extraction efficiency of the LED chip 10, thereby improving the manufacturing yield and mounting reliability of the LED light source device constituted including the LED chip 10. <P>COPYRIGHT: (C)2009,JPO&INPIT |
