Contribution to the realization of a planar micro-inductor

Recent advances in telecommunications require new components that can operate at high frequencies and now, electronic requires high quality components. The main purpose of this work is the design, micro-fabrication and characterization of a micro-integrated inductor using properties of a relatively thick layer of magnetic material. As coiled structures are difficult to integrate a planar structure was chosen. Two kinds of devices have been made: a device consisting of one spiral on a layer of magnetic material and another consisting of one spiral sandwiched between two layers of magnetic material. The simulation studies show very good results confirmed by characterizations. Several high frequencies (using a vector analyzer) and low frequencies (using a LCRmeter) characterizations were made. Results show that the inductance value is multiplied by two in the case of a structure with one layer of magnetic material and by a factor close to the permeability of magnetic material in the case of a double layer structure. In addition, a high current characterization technique using a bias tee and a technique for determining the permeability of the magnetic material using a combination of measurement results and simulation have been implemented. The integration of passive components such as inductor with relatively thick magnetic layers is made possible by the use of microelectronic and micro-machining techniques

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Source https://theses.hal.science/tel-00985901
Author Allassem, Désiré
Maintainer CCSD
Last Updated May 5, 2026, 12:29 (UTC)
Created May 5, 2026, 12:29 (UTC)
Identifier NNT: 2010STET4019
Language fr
Rights https://about.hal.science/hal-authorisation-v1/
contributor Dispositifs et Instrumentation en Optoélectronique et micro-ondes (DIOM) ; Université Jean Monnet - Saint-Étienne (UJM) ; Université Jean Monnet (EPSCPE) (UJM EPE)-Université Jean Monnet (EPSCPE) (UJM EPE)
creator Allassem, Désiré
date 2010-11-26T00:00:00
harvest_object_id 101fc104-5a93-441f-9a44-3470dee075eb
harvest_source_id 3374d638-d20b-4672-ba96-a23232d55657
harvest_source_title test moissonnage SELUNE
metadata_modified 2026-04-23T00:00:00
set_spec type:THESE