| US 7,567,410 B1 | ||
| Flexure including a heat sink and a dielectric layer under trace termination pads | ||
| Yiduo Zhang, Cupertino, Calif. (US); Drew B. Lawson, Los Gatos, Calif. (US); Tzong-Shii Pan, San Jose, Calif. (US); Darrell D. Palmer, Roseville, Calif. (US); and Yih-Jen Chen, Fremont, Calif. (US) | ||
| Assigned to Western Digital Technologies, Inc., Lake Forest, Calif. (US) | ||
| Filed on Oct. 31, 2006, as Appl. No. 11/590,575. | ||
| Int. Cl. G11B 5/48 (2006.01) | ||
| U.S. Cl. 360—245.9 [360/245.3] | 15 Claims |
| 1. A flexure for a head/gimbal assembly suspension comprising:
a metal base layer including
two outrigger beams,
a first crossbeam disposed between the two outrigger beams at a trailing end of the base layer,
a second crossbeam disposed between the two outrigger beams,
a base layer window disposed between the first and second crossbeams;
a flexure tongue, including a slider mounting surface, extending from the second crossbeam, and
a heat sink portion;
a trace layer disposed over the base layer and including a plurality of conductive traces, each conductive trace having a
curved section that terminates in a trace termination pad, each trace termination pad having an edge disposed closest to the
flexure tongue; and
a dielectric layer disposed between the trace and base layers and including
a portion underlying the edges of the trace termination pads and overlying the heat sink portion, and
a dielectric layer window disposed between the first and second crossbeams of the base layer;
wherein the curved section of each conductive trace extends over the base layer window.
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