An electron-multiplying 'Micromegas' grid made in silicon wafer post-processing technology

M.A. Chefdeville, P. Colas, Y. Giomataris, H. van der Graaf, E.H.M. Heijne, Sipho van der Putten, Cora Salm, Jurriaan Schmitz, Sander M. Smits, J. Timmermans, J.L. Visschers

    Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademic

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    Abstract

    A technology for manufacturing an aluminium grid onto a silicon wafer has been developed. The grid is fixed parallel and precisely to the wafer (anode) surface at a distance of 50 μm by means of insulating pillars. When some 400 V are applied between the grid and (anode) wafer, gas multiplication occurs: primary electrons from the drift space above the grid enter the holes and cause electron avalanches in the high-field region between the grid and the anode. Production and operational characteristics of the device are described. With this newly developed technology, CMOS (pixel) readout chips can be covered with a gas multiplication grid. Such a chip forms, together with the grid, an integrated device which can be applied as readout in a wide field of gaseous detectors.
    Original languageEnglish
    Title of host publicationProceedings 8th Annual Workshop on Semiconductor Advances for Future Electronics and Sensors 2005
    Place of PublicationVeldhoven, The Netherlands
    PublisherSTW
    Pages139-142
    Number of pages4
    ISBN (Print)90-73461-50-2
    Publication statusPublished - Nov 2005
    Event8th Annual Workshop on Semiconductor Advances for Future Electronics and Sensors, SAFE 2005 - Veldhoven, Netherlands
    Duration: 17 Nov 200518 Nov 2005
    Conference number: 8

    Workshop

    Workshop8th Annual Workshop on Semiconductor Advances for Future Electronics and Sensors, SAFE 2005
    Abbreviated titleSAFE
    Country/TerritoryNetherlands
    CityVeldhoven
    Period17/11/0518/11/05

    Keywords

    • Microelectrode
    • Microsensors
    • Terms—Electron gas multiplication
    • Wafer post-processing
    • Integrated grid
    • MICROMEGAS
    • SU-8
    • Wafer-scale integration
    • SC-CICC: Characterization of IC Components

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