Dynamic magnetic information storage or retrieval – Head mounting – Disk record
Reexamination Certificate
2004-06-03
2008-12-16
Miller, Brian E (Department: 2627)
Dynamic magnetic information storage or retrieval
Head mounting
Disk record
C174S255000
Reexamination Certificate
active
07466519
ABSTRACT:
A wired circuit board is provided for controlling characteristic impedance at connection points between the read wire and write wire of a suspension board with circuit and terminal portions of the wired circuit board connected thereto. The invention provides improved signal transmission efficiency for fine pitch wiring or for high frequency signal. A conductive board is adhesively bonded to an insulating base layer of the wired circuit board at one side thereof opposite to the other side on which a suspension-board-side connection terminal portion is formed having a first terminal portion that connects with a read wire of the suspension board and a second terminal portion that connects with a write wire of the suspension board. An opening is provided adjacent to one of the first terminal portion and the second terminal portion and a stiffener board is adhesively bonded to the conductive board via an adhesive layer.
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Ohkawa Tadao
Ohwaki Yasuhito
Wakaki Shuichi
Akerman & Senterfitt
Edwards, Esq. Jean C.
Miller Brian E
Nitto Denko Corporation
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