In-line contiguous resistive lapping guide for magnetic sensors

Details In-line contiguous resistive lapping guide for magnetic sensors In-line contiguous resistive lapping guide for magnetic sensors

2007-07-17

2007-07-17

Eley, Timothy V. (Department: 3724)

Abrading

Precision device or process - or with condition responsive...

With indicating

C029S603090, C029S603160, C451S041000

Reexamination Certificate

active

10954868

ABSTRACT:
An in-line lapping guide uses a contiguous resistor in a cavity to separate a lithographically-defined sensor from the in-line lapping guide. As lapping proceeds through the cavity toward the sensor, the resistance across the sensor leads increases to a specific target, thereby indicating proximity to the sensor itself. The contiguous resistor is fabricated electrically in parallel to the sensor and the in-line lapping guide. The total resistance across the sensor leads show resistance change even when lapping through the cavity portion. One method to produce the contiguous resistor is to partial mill the cavity between the sensor and the in-line lapping guide so that a film of metal is left. Total resistance across leads is the parallel resistance of the sensor, the contiguous resistor, and the in-line lapping guide.

REFERENCES:
patent: 5755612 (1998-05-01), Schaenzer et al.
patent: 5816890 (1998-10-01), Hao et al.
patent: 5911455 (1999-06-01), Draaisma et al.
patent: 5991698 (1999-11-01), Hao et al.
patent: 6007405 (1999-12-01), Mei
patent: 6193584 (2001-02-01), Rudy et al.
patent: 6219205 (2001-04-01), Yuan et al.
patent: 6330488 (2001-12-01), Yoshida et al.
patent: 6370763 (2002-04-01), Watanuki et al.
patent: 6699102 (2004-03-01), Reiley et al.
patent: 6935923 (2005-08-01), Burbank et al.
patent: 6997784 (2006-02-01), Bunch et al.
patent: 7014530 (2006-03-01), Kasiraj et al.
patent: 7062838 (2006-06-01), Ding et al.
patent: 2002/0173227 (2002-11-01), Lam et al.
patent: 2004/0009739 (2004-01-01), Zhu

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