Abstract
This paper is mainly designed for different aspect ratios of the magnetoresistance. By actual observation of the measured MR ratio as well as the difference of the RH curve and by the numerical simulation software, we study the relationship between the magnetoresistance, the future status of nickel iron film, and the internal structure of the magnetic zone Flip process. Using the AMR process technology, a series of component Magnetoresistance is designed by width from 6 to 18 microns, length 200-600 μm, changing shapes of the two ends, and the ratio of the material Ni80Fe20 with film thickness of 300□. Compared with conventional MR literature with only 2% changes from the original, the proposed design can raise to 2.5% changes (40% improvement) in the linear range. Thus, the detection range of the magnetic field is increased. By the point measurement method for magnetoresistance at both ends, magnetoresistance curves from the analysis of the experimental results shows that increasing the length will significantly improve the resistance (in proportion), but increasing the width will significantly reduce the resistance and form an inverse relationship independent of the shape of both ends in rectangle, triangle, ellipse…etc. These phenomena are also verified by the simulations that match the measured magnetoresistance curve.