Patent ID: 9721599
Date: 2017-08-01
CPC Classifications: G11B,H05K

Claim:
1. A suspension board with circuit, comprising: a metal supporting board; an insulating base layer formed on one side of the metal supporting board in a thickness direction thereof; a conductive layer; and an insulating cover layer formed on the one side of the insulating base layer in the thickness direction to cover the conductive layer, wherein either one of the insulating base layer and the insulating cover layer includes an opening extending therethrough in the thickness direction, and the conductive layer includes a wire formed on the one side of the insulating base layer in the thickness direction, and a connection terminal electrically connected to the wire and exposed from the opening to be capable of electrical connection to an electronic element, wherein the suspension board with circuit further comprises a protective layer for protecting the connection terminal exposed from the opening, wherein the opening is formed in the insulating base layer so as not to overlap the metal supporting board when projected in the thickness direction, wherein the connection terminal fills the opening, wherein the protective layer protects, from the other side thereof in the thickness direction, the connection terminal exposed to the other side thereof in the thickness direction, wherein the insulating base layer includes a recessed portion which is recessed in a peripheral edge portion of the opening from a surface of the insulating base layer which is located on the other side thereof in the thickness direction toward the one side thereof in the thickness direction, and wherein in the thickness direction, the recessed portion is located at the one side of a surface of the metal supporting board which is located on the one side thereof in the thickness direction.