| US 7,525,764 B2 | ||
| Suspension board with circuit | ||
| Tetsuya Ohsawa, Ibaraki (Japan); Yasuhito Funada, Ibaraki (Japan); and Hitoki Kanagawa, Ibaraki (Japan) | ||
| Assigned to Nitto Denko Corporation, Ibaraki-shi (Japan) | ||
| Filed on Oct. 24, 2005, as Appl. No. 11/256,800. | ||
| Claims priority of application No. 2004-309774 (JP), filed on Oct. 25, 2004. | ||
| Prior Publication US 2006/0087769 A1, Apr. 27, 2006 | ||
| Int. Cl. G11B 5/60 (2006.01); G11B 21/21 (2006.01) | ||
| U.S. Cl. 360—234.5 [360/245.9] | 18 Claims |
| 1. A suspension board with a circuit, which comprises a metal board comprising an area for mounting a magnetic head, and other
area comprising a conductive layer provided on the metal board as a circuit pattern via an insulation layer,
the aforementioned circuit pattern having a pattern end to be a terminal to be connected with a terminal of a magnetic head,
and
the end face of the pattern end is aligned with the end face of the insulation layer directly beneath, or protruding from
the end face of the insulation layer in the terminating direction,
wherein the metal board has an opening penetrating the board on the terminating side of the pattern end and an inner wall
surface of the opening is retracted to a position beneath the insulation layer, and
wherein the pattern end protrudes in the terminating direction from the end face of an insulation layer directly beneath it,
then bends toward the lower layer side, covering the end face of the insulation layer, and further bends in the terminating
direction, whereby a stepped-part is made on the upper surface of the pattern end, with a lower level on the tip side.
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