Wiring member of suspension for disc drive
AssigneeNHK Spring Co., Ltd.
InventorsHajime Arai, Ikuo Someya
Life of this patent
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Abstract
A wired flexure comprises a metallic substrate, a polyimide layer formed on the metallic substrate, and read conductors and write conductors formed on the polyimide layer. The polyimide layer has a thick-walled portion and a thin-walled portion that are different in thickness. The read and write conductors extend covering the thick- and thin-walled portions. In order to obtain a desired impedance, the width of the conductors in the thin-walled portion is smaller than that of the conductors in the thick-walled portion.
Claims16
A wiring member used in a suspension for disc drive, which includes a base section, a load beam section, a flexure extending along the load beam section, comprising:
- a metallic substrate;
- an electrical insulating layer formed on the metallic substrate and having a thick-walled portion and a thin-walled portion different in thickness;
- and
- a conductor formed on the insulating layer, at least a part of the conductor extending covering the thick- and thin-walled portions of the insulating layer.
Dependencies are inferred from the claim text.