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Title: Advanced Magnetic Head Development Revision 1 Final Report CRADA No. TC-0840-94

Abstract

The specific go,il of this research was the development of a prototype read magnetic sensor head using the Current:Perpendicular-to-Plane (CPP) geometry with known GMR (Giant Magneto-Resistive) multilayered structures to achieve read densities greater than 10 Gbit/in2, field sensitivities greater than 1%/Oe, switching fields less than 20 Oe, and total MR response greater than 10%. The specific materials needed for this idcnl behavior had to be determined, as did the eventual design of the sensor (placement of contact leads, shields, and biasing magnets). Thus the thrust of the rescnrch required a search for the proper multilayer material combination und the development of a simulation capability to guide sensor design. Issues i:elated to device integration, such as media noise and lead contact resistance, were also recognized as important technological hurdles but these items were deferred until the operating conditions of the-prototype GMR sensor were more precisely determined.

Authors:
 [1];  [2]
  1. Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
  2. Read-Rite Corporation, Milpitas, CA (United States)
Publication Date:
Research Org.:
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1426111
Report Number(s):
LLNL-TR-747182
DOE Contract Number:  
AC52-07NA27344
Resource Type:
Technical Report
Country of Publication:
United States
Language:
English
Subject:
47 OTHER INSTRUMENTATION; 42 ENGINEERING

Citation Formats

Cerjan, C., and Shi, S.. Advanced Magnetic Head Development Revision 1 Final Report CRADA No. TC-0840-94. United States: N. p., 2018. Web. doi:10.2172/1426111.
Cerjan, C., & Shi, S.. Advanced Magnetic Head Development Revision 1 Final Report CRADA No. TC-0840-94. United States. doi:10.2172/1426111.
Cerjan, C., and Shi, S.. Fri . "Advanced Magnetic Head Development Revision 1 Final Report CRADA No. TC-0840-94". United States. doi:10.2172/1426111. https://www.osti.gov/servlets/purl/1426111.
@article{osti_1426111,
title = {Advanced Magnetic Head Development Revision 1 Final Report CRADA No. TC-0840-94},
author = {Cerjan, C. and Shi, S.},
abstractNote = {The specific go,il of this research was the development of a prototype read magnetic sensor head using the Current:Perpendicular-to-Plane (CPP) geometry with known GMR (Giant Magneto-Resistive) multilayered structures to achieve read densities greater than 10 Gbit/in2, field sensitivities greater than 1%/Oe, switching fields less than 20 Oe, and total MR response greater than 10%. The specific materials needed for this idcnl behavior had to be determined, as did the eventual design of the sensor (placement of contact leads, shields, and biasing magnets). Thus the thrust of the rescnrch required a search for the proper multilayer material combination und the development of a simulation capability to guide sensor design. Issues i:elated to device integration, such as media noise and lead contact resistance, were also recognized as important technological hurdles but these items were deferred until the operating conditions of the-prototype GMR sensor were more precisely determined.},
doi = {10.2172/1426111},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Fri Mar 02 00:00:00 EST 2018},
month = {Fri Mar 02 00:00:00 EST 2018}
}

Technical Report:

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