화학공학소재연구정보센터
Journal of Industrial and Engineering Chemistry, Vol.53, 416-424, September, 2017
Highly efficient current sensor built on a chip based on nanocrystalline NiFe/Cu/NiFe thin film
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We discuss here the realization of a grand vision of a smart GMR device for an on-chip current sensor. The device was characterized to confirm a strong antiferromagnetic coupling and their contribution to giant magnetoresistance. To achieve high sensitivity, we explored different prototypes of device. The GMR sensor is well suited for current sensing as it possesses desired linearity and high sensitivity of 1.32 Ω Oe-1. The result reveals thickness and number of bilayers play an important role in the magnetization to stay aligned to the current channel. This study brings us a step closer to an ideal on-chip current sensor.
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