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Studies of IBL wire bonds operation in a ATLAS-like magnetic field.

At the Large Hadron Collider (LHC) experiments, most of silicon detectors use wire bonds to connect front-end chips and sensors to circuit boards for the data and service trans- missions. These wire bonds are operated in strong magnetic field environments and if time varying currents pass through th...

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Detalles Bibliográficos
Autores principales: Alvarez Feito, D, Honma, A, Mandelli, B
Publicado: 2015
Materias:
Acceso en línea:http://cds.cern.ch/record/2010249
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author Alvarez Feito, D
Honma, A
Mandelli, B
author_facet Alvarez Feito, D
Honma, A
Mandelli, B
author_sort Alvarez Feito, D
collection CERN
description At the Large Hadron Collider (LHC) experiments, most of silicon detectors use wire bonds to connect front-end chips and sensors to circuit boards for the data and service trans- missions. These wire bonds are operated in strong magnetic field environments and if time varying currents pass through them with frequencies close to their mechanical resonance frequency, strong resonant oscillations may occur. Under certain conditions, this effect can lead to fatigue stress and eventually breakage of wire bonds. During the first LHC Long Shutdown, the ATLAS Pixel Detector has been upgraded with the addition of a fourth innermost layer, the Insertable B-Layer (IBL), which has more than 50000 wire bonds operated in the ATLAS 2 T magnetic field. The results of systematic studies of operating wire bonds under IBL-like conditions are presented. Two different solutions have been investigated to minimize the oscillation amplitude of wire bonds.
id cern-2010249
institution Organización Europea para la Investigación Nuclear
publishDate 2015
record_format invenio
spelling cern-20102492019-09-30T06:29:59Zhttp://cds.cern.ch/record/2010249Alvarez Feito, DHonma, AMandelli, BStudies of IBL wire bonds operation in a ATLAS-like magnetic field.Detectors and Experimental TechniquesAt the Large Hadron Collider (LHC) experiments, most of silicon detectors use wire bonds to connect front-end chips and sensors to circuit boards for the data and service trans- missions. These wire bonds are operated in strong magnetic field environments and if time varying currents pass through them with frequencies close to their mechanical resonance frequency, strong resonant oscillations may occur. Under certain conditions, this effect can lead to fatigue stress and eventually breakage of wire bonds. During the first LHC Long Shutdown, the ATLAS Pixel Detector has been upgraded with the addition of a fourth innermost layer, the Insertable B-Layer (IBL), which has more than 50000 wire bonds operated in the ATLAS 2 T magnetic field. The results of systematic studies of operating wire bonds under IBL-like conditions are presented. Two different solutions have been investigated to minimize the oscillation amplitude of wire bonds.PH-EP-Tech-Note-2015-002oai:cds.cern.ch:20102492015-04-17
spellingShingle Detectors and Experimental Techniques
Alvarez Feito, D
Honma, A
Mandelli, B
Studies of IBL wire bonds operation in a ATLAS-like magnetic field.
title Studies of IBL wire bonds operation in a ATLAS-like magnetic field.
title_full Studies of IBL wire bonds operation in a ATLAS-like magnetic field.
title_fullStr Studies of IBL wire bonds operation in a ATLAS-like magnetic field.
title_full_unstemmed Studies of IBL wire bonds operation in a ATLAS-like magnetic field.
title_short Studies of IBL wire bonds operation in a ATLAS-like magnetic field.
title_sort studies of ibl wire bonds operation in a atlas-like magnetic field.
topic Detectors and Experimental Techniques
url http://cds.cern.ch/record/2010249
work_keys_str_mv AT alvarezfeitod studiesofiblwirebondsoperationinaatlaslikemagneticfield
AT honmaa studiesofiblwirebondsoperationinaatlaslikemagneticfield
AT mandellib studiesofiblwirebondsoperationinaatlaslikemagneticfield