Magnetic field spatial Fourier analysis: A new opportunity for high resolution current localization

F. Infante; P. Perdu; H. B. Kor; C. L. Gan; D. Lewis

doi:10.1016/j.microrel.2011.07.076

Magnetic field spatial Fourier analysis: A new opportunity for high resolution current localization

F. Infante^*, P. Perdu, H. B. Kor, C. L. Gan, D. Lewis

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

Abstract

Magnetic microscopy has proven its usefulness throughout the years. It allows current localization with a certain degree of precision by using an inversion algorithm to invert the Biot-Savart law. The goal is to obtain the current distribution once the magnetic field is given. However, in order to obtain a stable solution, the magnetic data is severely low-pass filtered in the spatial Fourier domain, and some important information is lost. In this paper, the contribution given by the different spatial frequencies was studied: it was demonstrated how this information can be used to obtain additional information regarding the position of the currents. A comparative study between the theoretical approach and the application to the measurements is also shown.

Original language	English
Pages (from-to)	1684-1688
Number of pages	5
Journal	Microelectronics Reliability
Volume	51
Issue number	9-11
DOIs	https://doi.org/10.1016/j.microrel.2011.07.076
Publication status	Published - 2011
Externally published	Yes

ASJC Scopus Subject Areas

Electronic, Optical and Magnetic Materials
Atomic and Molecular Physics, and Optics
Condensed Matter Physics
Safety, Risk, Reliability and Quality
Surfaces, Coatings and Films
Electrical and Electronic Engineering

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10.1016/j.microrel.2011.07.076

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title = "Magnetic field spatial Fourier analysis: A new opportunity for high resolution current localization",

abstract = "Magnetic microscopy has proven its usefulness throughout the years. It allows current localization with a certain degree of precision by using an inversion algorithm to invert the Biot-Savart law. The goal is to obtain the current distribution once the magnetic field is given. However, in order to obtain a stable solution, the magnetic data is severely low-pass filtered in the spatial Fourier domain, and some important information is lost. In this paper, the contribution given by the different spatial frequencies was studied: it was demonstrated how this information can be used to obtain additional information regarding the position of the currents. A comparative study between the theoretical approach and the application to the measurements is also shown.",

author = "F. Infante and P. Perdu and Kor, {H. B.} and Gan, {C. L.} and D. Lewis",

year = "2011",

doi = "10.1016/j.microrel.2011.07.076",

language = "English",

volume = "51",

pages = "1684--1688",

journal = "Microelectronics Reliability",

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publisher = "Elsevier Limited",

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T1 - Magnetic field spatial Fourier analysis

T2 - A new opportunity for high resolution current localization

AU - Infante, F.

AU - Perdu, P.

AU - Kor, H. B.

AU - Gan, C. L.

AU - Lewis, D.

PY - 2011

Y1 - 2011

N2 - Magnetic microscopy has proven its usefulness throughout the years. It allows current localization with a certain degree of precision by using an inversion algorithm to invert the Biot-Savart law. The goal is to obtain the current distribution once the magnetic field is given. However, in order to obtain a stable solution, the magnetic data is severely low-pass filtered in the spatial Fourier domain, and some important information is lost. In this paper, the contribution given by the different spatial frequencies was studied: it was demonstrated how this information can be used to obtain additional information regarding the position of the currents. A comparative study between the theoretical approach and the application to the measurements is also shown.

AB - Magnetic microscopy has proven its usefulness throughout the years. It allows current localization with a certain degree of precision by using an inversion algorithm to invert the Biot-Savart law. The goal is to obtain the current distribution once the magnetic field is given. However, in order to obtain a stable solution, the magnetic data is severely low-pass filtered in the spatial Fourier domain, and some important information is lost. In this paper, the contribution given by the different spatial frequencies was studied: it was demonstrated how this information can be used to obtain additional information regarding the position of the currents. A comparative study between the theoretical approach and the application to the measurements is also shown.

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JO - Microelectronics Reliability

JF - Microelectronics Reliability

IS - 9-11

ER -

Magnetic field spatial Fourier analysis: A new opportunity for high resolution current localization

Abstract

ASJC Scopus Subject Areas

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