| 摘要 |
<p>PROBLEM TO BE SOLVED: To stabilize a resistance value by improving a mechanical contacting property of a conductive member which electrically connects a terminal of an electric component and a connecting portion of a wiring substrate.SOLUTION: A contact probe 3 includes: a conductive barrel 10 formed in a cylinder shape opening on both end portions, a terminal side plunger 11 inserted in the conductive barrel while preventing slipping-off from both end portions of the conductive parrel, and contacting with a terminal of an electric component; a substrate side plunger 12 contacting with a connecting portion of the wiring substrate; and a spring 13 for energizing the terminal side plunger and the substrate side plunger in directions separating from each other in the conductive barrel. On a base end side large-diameter portion 16 of at least either one of the terminal side plunger or the substrate side plunger, a protrusion 20 gradually narrowing from a root to a top portion is provided. A terminal portion 21 of the spring is made to abut on an inclined surface of the root to the top portion of the protrusion, and by the pressing force, a side part of the base end side large-diameter portion is pressed against an inner wall surface of the conductive barrel.</p> |
