| 摘要 |
A magnetic head includes a tunnel valve sensor, a first shield coupled to a first end of the tunnel valve sensor, and a second shield coupled to a second end of the tunnel valve sensor. A first connecting column electrically couples the first shield to a first read pad, and a second connecting column electrically couples the second shield to a second read pad. However, the first connecting column is magnetically uncoupled from the first shield and the second connecting column is magnetically uncoupled from the second shield. Advantageously, this eliminates or substantially reduces the influence of the connecting columns (which may be made in part from the same magnetic materials as the pole pieces) on the magnetic properties of the shields. In one example, the first connecting column is offset from the first shield and is coupled to it through a first connecting neck, and similarly the second connecting column is offset from the second shield and is coupled to it through a second connecting neck. In another example, the first and the second shields are made of a magnetic material whereas the first and the second connecting columns are made of a non-magnetic electrically conductive material.
|
