Dynamic magnetic information storage or retrieval – Head – Magnetoresistive reproducing head
Reexamination Certificate
2007-08-03
2010-10-26
Cao, Allen T (Department: 2627)
Dynamic magnetic information storage or retrieval
Head
Magnetoresistive reproducing head
Reexamination Certificate
active
07821746
ABSTRACT:
A magnetic head device includes a TMR sensor or a CPP GMR sensor. Shield layers are disposed in contact with the top and bottom of a sensor body. A sensing current is supplied to the sensor body through the shield layers. Lead layers are connected to the shield layers and extend to below conductive pads. Ends of the lead layers are electrically connected to the conductive pads via lifting layers. Heat-conducting layers are disposed below the ends of the lead layers. An insulating layer is formed between the heat-conducting layers and an end surface of a slider body to such a thickness that it does not obstruct heat transfer. Heat applied from a molten solder to the lead layers is released to the slider body through the heat-conducting layers. This prevents the shield layers from being heated to high temperature.
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patent: 2002/0154453 (2002-10-01), Ikeda
patent: 2008/0055788 (2008-03-01), Nagai
patent: 2009/0086385 (2009-04-01), Gill et al.
patent: 2004-152393 (2004-05-01), None
patent: 2004-164813 (2004-06-01), None
Brinks Hofer Gilson & Lione
Cao Allen T
TDK Corporation
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