SUBSTRATE FOR SUSPENSION AND METHOD FOR MANUFACTURING THE SAME, SUSPENSION, SUSPENSION WITH HEAD, ASSEMBLY OF SUSPENSION WITH HEAD AND EXTERNAL CONNECTION SUBSTRATE, AND HARD DISK DRIVE

摘要

PROBLEM TO BE SOLVED: To provide a substrate for suspension capable of preventing a conduction portion which makes a wiring layer and a metal support layer conductive with each other from short-circuiting with an external terminal of an external connection substrate, when the external connection substrate is mounted on the substrate.SOLUTION: A substrate 1 for suspension includes an insulating layer 10, a metal support layer 20, and a wiring layer 30. The wiring layer 30 has a plurality of wires 31 arranged in a tail region 3, and a plurality of connection terminals 33 capable of being joined to an external terminal 132 of an external connection substrate 131 using bonding tools 60 and 61. A conduction portion 50 which makes the wiring layer 30 and the metal support layer 20 conductive with each other is provided in the tail region 3. A protective layer 40 is provided so as to cover a surface in the side of a junction surface 36 of the connection terminal 33 out of the wiring layer 30 and the conduction portion 50 in the tail region 3.