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The QST2002RT3 Analyzer uses same field-proven technology as our entire line of HDD measurement equipment, installed onto a thermally-controlled system that can apply extremely high thermal stress while testing up to 12 HGAs simultaneously.

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Key Benefits

  • Low electronic noise

  • Compact footprint

  • Hot or Hot/Cold (including humidity control) Stress Configurations available

  • 1xMR, 2xMR, and 3xMR electronics interface 

  • Dual 6xHGA Cartridges supporting up to 12 HGAs simultaneously

  • HGA Cartridges customizable for different head types and configurations

  • Offline HGA mounting

  • Electrical Stress includes any combination of Bias, Bias Pulsing, Write, Heater, or Field Stress

  • Full LF and HF measurement capability with short interconnections

  • Slide magnet assembly for easy access to HGA Cartridges

  • Sensor for detection of Magnet in test position

  • Full suite of customized thermal degradation software tests

  • Safety Enclosure with Interlocks

  • Integrated Closed-Loop field control 

  • Support standard High Frequency Channel Analysis 

  • Includes our patented SMAN magnetic instability measurement

The QST2002RT3 Analyzer is a reliability test system for characterizing the performance of Magnetoresistive Heads (HGAs) while being stressed at temperatures up to 250C or down to -20C.

The QST2002RT3 can simultaneousl;y stress and test in-situ up to 12 HGA's at user-defined temperatures, ideally for analyzing life prediction on a large sample of HGAs. The mode of operation is to apply V/I Bias stress to the MR sensor (or additionally any combination of Bias stress, Write stress, Magnetic Field Stress, DFH Stress, and Bias Pulsing stress) at elevated temperatures for an extended period of time, then perform standard QST and AC Channel measurements as metrics of performance degradation.

QST2002RT3 measurement capability includes Transfer Curve and Resistance analysis, and the most advanced magnetic instability detection system available. These measurements, performed through our proprietary AC measurement channel, include Popcorn Noise, AC Noise, and our patented and industry standard Spectral Maximum Amplitude Noise (SMAN) analysis.

Our proprietary software supports a full array of engineering and production interfaces, data logging, grading, and normalization, and allows for customers to develop their own software modules if so desired.

A small footprint allows the QST2002RT3 to operate in virtually any environment.  Two versions of thermal control are available, Hot (ambient to 250C) or Hot/Cold (-20C to +80C).  The Hot/Cold system also includes a humidity-controlled environment.


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