Patent ID: 9167693
Filing Date: 2015-10-20
Classification: G11B,H05K,Y10T

Abstract:
1. A method of producing a wired circuit board, comprising: a first step of preparing a metal supporting layer; a second step of forming, on one side of the metal supporting layer in a thickness direction thereof, an insulating layer having a first opening, and a plurality of terminal formation portions placed in the first opening to be spaced apart from each other; a third step of forming, on one side of the insulating layer in the thickness direction, a conductive layer having a plurality of terminal portions each corresponding to the plurality of terminal formation portions; a fourth step of partially removing the metal supporting layer to form a second opening which includes the plurality of terminal formation portions when projected in the thickness direction, and at least one reinforcing metal supporting portion placed between the plurality of terminal formation portions in the second opening; and a fifth step of removing the plurality of terminal formation portions exposed from the second opening to expose both side surfaces of the plurality of terminal portions in the thickness direction.