Patent ID: 9084371
Filing Date: 2015-07-14
Classification: H01L,H05K,Y10T

Abstract:
1. A wiring substrate, comprising: a metal plate; a wiring pattern formed by the metal plate; and a base material to which the wiring pattern is fixed, wherein the wiring pattern has a mounting pad on a first surface of the wiring pattern for surface-mounting a component, the mounting pad comprises a recess that is filled with solder to surface-mount the component, the component elongates in a longitudinal direction, the recess has a width direction and a depth direction that are perpendicular to the longitudinal direction, and a dimension of the recess is greater than a dimension of the component in the width direction, the component is mounted on the surface of the wiring pattern such that two ends of the component are positioned between two ends of the recess in the width direction, and one end of the component in the longitudinal direction is positioned within the entire periphery of the recess, and the recess is provided at a position spaced from edges of the wiring pattern, a bottom surface of the component mounted on the mounting pad contacts with the solder filled in the recess, and a dimension between the bottom surface of the component and the bottom of the recess is equal to or greater than a dimension of the recess in the depth direction, and the wiring pattern has a second surface, a part of the second surface being fixed to the base material.