半はん田だフィレットMeanings1nounsolder filletTechnical term in electronics and metalworking for the concave or convex bead of solder formed at a joint.半はん田だフィレットの形けい状じょうは接せつ合ごうの信しん頼らい性せいに影えい響きょうする。The shape of the solder fillet affects the reliability of the joint.
