Tohoku University Technology: High-frequency magnetic field measurement-device: T11-125_T12-162
High-frequency magnetic field measurement-method with sub-micron spatial resolution
The problem of electromagnetic noise entering to analog circuit from digital circuit in RFICs (Radio Frequency ICs) for portable terminals (smartphone, tablet, etc.) which are capable of ultra high speed GHz class communication, is becoming a serious subject. In order to measure high frequency magnetic field on IC chip,methods with "high spatial resolution" and "GHz measurement frequency" are necessary, but none of the existing high-frequency magnetic field measurement-methods (shielded loop coil type magnetic field probe, magneto-optical probe, giant magnetic resistive sensor, etc.) satisfy these requirements. This invention is about a high-frequency magnetic field measurement-device using a magnetic force microscope (MFM) probe, and the beating field method which uses the field undulation. Specifically, a configuration that enables the separation (removal) of electric field that interferes with magnetic field measurement, and a configuration that modifies the cantilever drive and detection component are added in this invention.
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The revenue generated from technology transfer is reinvested as new research funding for universities and researchers, and is utilized to create further research outcomes. To ensure the smooth operation of this cycle, known as the "Intellectual Creation Cycle," we will vigorously promote technology transfer. The types of seeds we handle include patents, know-how, databases, and programs. We have established a collaborative framework by signing basic technology transfer agreements with the following universities (as of June 1, 2025): Tohoku University, Hirosaki University, Iwate University, Akita University, Fukushima University, Yamagata University, Tohoku Gakuin University, Iwate Medical University, Fukushima Medical University, Aizu University, Miyagi University, Hokkaido University, Muroran Institute of Technology, and Showa Medical University.
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