发明名称 |
ABGESCHIRMTER MAGNETORESISTIVER KOPF MIT LADUNGSBEGRENZUNG |
摘要 |
An MR or GMR head is described which solves a head spiking problem with a charge clamp structure which provides a noninsulating electrical path from a conducting shield to an MR element lead to prevent charge buildup. Various embodiments of the charge clamp which are described include a center-tapped resistor which provides an electrical path from the S2 shield (and optionally the S1 shield) to both leads of the MR element to form a self-tracking clamp. Alternatively the resistance configurations described can be duplicated for each shield. A storage system using the invention connects the system's bias circuitry to apply a dc bias voltage on the MR elements leads which in turn are electrically connected to the shield. |
申请公布号 |
AT225556(T) |
申请公布日期 |
2002.10.15 |
申请号 |
AT19990956211T |
申请日期 |
1999.11.26 |
申请人 |
INTERNATIONAL BUSINESS MACHINES CORPORATION |
发明人 |
BISKEBORN, ROBERT |
分类号 |
G01R33/09;G11B5/02;G11B5/09;G11B5/11;G11B5/39;G11B5/40;H01L43/08;(IPC1-7):G11B5/39 |
主分类号 |
G01R33/09 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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