• Proceedings of the Korean Magnestics Society Conference
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• 2004.06a
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• pp.148-149
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• 2004

• Proceedings of the Korean Magnestics Society Conference
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• 2000.09a
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• pp.305-306
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• 2000

• Journal of the Korean Magnetics Society
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• v.12 no.2
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• pp.68-72
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• 2002

In this research, the effects of capacitance to the access time were studied at the junction area of tunneling magnetoresistance when these were used as memory devices. These results were obtained by applying electric signal input and magnetic field was not used. We applied bipolar square waves of 1MHz to the MTJ samples to obtain the results and time constant ($\tau$) calculated by observing wave responses utilizing an oscilloscope. And time constant was compared with junction area. Each part of MTJ sample, such as electrical pad, lead and contact area, was modeled as an electrical equivalent circuit based on experimental results. For the 200㎛$\times$200㎛ cell, junction capacitance was 90 pF. Also, measurement and simulation results were compared, which showed those similarity.

• Proceedings of the Korean Magnestics Society Conference
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• 2002.04a
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• pp.54-55
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• 2002

• Proceedings of the Korean Institute of Surface Engineering Conference
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• 1998.11a
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• pp.33-34
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• 1998

• Proceedings of the Korean Magnestics Society Conference
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• 2005.06a
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• pp.94-95
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• 2005

• Proceedings of the Korean Magnestics Society Conference
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• 2010.06a
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• pp.106-107
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• 2010

• Proceedings of the Korean Magnestics Society Conference
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• 2012.11a
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• pp.48-49
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• 2012

• Proceedings of the Korean Magnestics Society Conference
• /
• 2005.06a
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• pp.92-93
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• 2005

• Journal of the Korean Magnetics Society
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• v.15 no.6
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• pp.307-310
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• 2005

To get the spatial feature of arterial pulse, we designed spatial pulse diagnostic apparatus (SPDA) using a 2-dimensional magnetoresistive sensor array. The magnetic field distribution fur magnet may was simulated using finite element method. We recognized that the field distribution of parallel magnet mays was more sensitive and uniformed than that of perpendicular one. Also the spatial displacements of magnet array were agreed with the output signal of magnetic tunnel junction (MTJ) sensor array.