Dynamic magnetic information storage or retrieval – Fluid bearing head support – Disk record
Reexamination Certificate
2007-04-12
2010-06-15
Klimowicz, William J (Department: 2627)
Dynamic magnetic information storage or retrieval
Fluid bearing head support
Disk record
C360S128000, C360S294700
Reexamination Certificate
active
07738214
ABSTRACT:
When exogenous noise is applied to the ground wire of a thin film magnetic head, crosstalk noise occurs in a lead line and a ground lines located near the ground wire. Embodiments in accordance with the present invention avoid this by providing a common terminal near the central portion of a thin film head portion. Write element terminals are connected to lines extending from a coil. Read element terminals are connected to lead wires extending from electrodes of a GMR element. A heater terminal is connected to a line extending from a heater. The common terminal is connected to a ground line of upper and lower shields via a resistor, to ground lines of electrodes via other resistors and to a ground line of upper and lower magnetic pole pieces of a write element via another resistor. A ground line of a slider, a ground line of the heater, and a ground line of the common terminal are all connected to a ground terminal.
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Hitachi Global Storage Technologies - Netherlands B.V.
Klimowicz William J
Nader Rambod
Townsend and Townsend / and Crew LLP
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