Uniformity in CCP magnetic read head devices

Details Uniformity in CCP magnetic read head devices Uniformity in CCP magnetic read head devices

2011-01-18

2011-01-18

Cao, Allen T (Department: 2627)

Dynamic magnetic information storage or retrieval

Head

Magnetoresistive reproducing head

Reexamination Certificate

active

07872838

ABSTRACT:
Improved performance uniformity among CPP magnetic read devices that include an oxide barrier has been achieved by fabricating the oxide layer from at least two separately formed CCP layers. Each CCP layer is given its own PIT and IAO treatment which is of shorter duration than the PIT/IAO treatment that is used when only a single CCP layer is formed.

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Co-pending U.S. Appl. No. 11/352,676, filed Jan. 13, 2006, “Improved Current Confining Layer for GMR Device”.

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