US 8,300,363 B2Granted

Wiring structure of flexure

AssigneeNHK Spring Co., Ltd.

InventorsHajime Arai, Kiyotaka Fukushima

Life of this patent

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Abstract

A wiring structure of a flexure includes wiring that includes a trace of first polarity and a trace of second polarity and transmits signals to and from a head that is supported with the flexure and writes and reads data to and from a recording medium and an interleaved section formed at least partly in the wiring where the traces are each divided into sub-traces, the sub-traces being alternated in a width direction of the wiring, the sub-traces of each trace being connected to each other on each side of the interleaved section, an outer one of the sub-traces of each trace being narrower than an inner one of the same. The wiring structure reduces partial dips in the frequency characteristic of signal transmission loss (loss-to-frequency characteristic) of the wiring at the interleaved section.

Claims4

Dependent claims

A wiring structure of a flexure supporting a head to write and read data to and from a recording medium, comprising:

wiring including a trace of first polarity and a trace of second polarity, the traces of the first and second polarities through which signals are transmitted to and from the head;
an interleaved section formed at least partly in the wiring where the traces are each divided into sub-traces, the sub-traces of one trace of the trace having the first polarity and the trace having the second polarity being alternated in a width direction of the wiring with subtraces of the other of the trace having the first polarity and the trace having the second polarity, the sub-traces of each trace being connected to each other on each side of the interleaved section;
and
an outer one of the sub-traces of each trace being narrower than an inner one of the same.

1 more element

Dependencies are inferred from the claim text.

Facts

Application: 13/225,193Filed 2 Sep 2011
Priority: JP 2010-2238341 Oct 2010
Published: US 2012/0081815 A15 Apr 2012
Granted: 30 Oct 2012
Term ends: Not estimatedThe source records don’t support an estimate.

Classification3 codes

G11B 5/486
Specially adapted for disk drive assemblies, e.g. assembly prior to operation, hard or flexible disk drives: with provision for mounting or…
G11B 5/484
Specially adapted for disk drive assemblies, e.g. assembly prior to operation, hard or flexible disk drives: integrated arm assemblies, e.g.…
G11B
Information storage based on relative movement between record carrier and transducer