In-line measurement of transparent micro membranes

Jimmy Fugl (Invited author), Hans Nørgaard Hansen (Invited author), Leonardo De Chiffre (Invited author)

    Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

    Abstract

    The purpose of this work has been to develop a new measuring principle to bring down the time for quality assurance, and obtain larger uniformity of the end product, in a specific production line. The production concerns thin transparent micro membranes (approx 35 micron thickness) dispensed in micro cavities, each membrane consisting of several membrane layers. A quality control should be performed every time a new layer is dispensed. The paper describes a new way of measuring membrane thickness. The method was achieved through the use of a vision system, whereby the thickness of the thin transparent micro membrane is determined in terms of the light absorbance of the membrane substrate. The new and faster measuring method makes is possible to measure the thickness of individual membranes and perform a 100% quality control.
    Original languageEnglish
    Title of host publication10th CIRP International Conference on Computer Aided Tolerancing : Specification and Verification for Assemblies
    Place of PublicationGermany, Erlangen
    PublisherShaker Verlag
    Publication date2007
    PagesPaper AIII4
    ISBN (Print)978-3-8322-6036-1
    Publication statusPublished - 2007
    Event10th CIRP International Conference on Computer Aided Tolerancing : Specification and Verification for Assemblies - Germany, Erlangen
    Duration: 21 Mar 200723 Mar 2007

    Conference

    Conference10th CIRP International Conference on Computer Aided Tolerancing : Specification and Verification for Assemblies
    CityGermany, Erlangen
    Period21/03/200723/03/2007

    Keywords

    • Dimensional metrology, Measurement instrument, Quality assurance.

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