Characterization and analysis of micro channels and sub-micron surface roughness of injection moulded microfluidic systems using optical metrology

Guido Tosello (Invited author), Francesco Marinello (Invited author), Hans Nørgaard Hansen (Invited author)

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

    Abstract

    Precision injection moulding of miniaturized products with micro features such as channels for microfluidic applications poses the greatest challenges in terms of tooling technology and process optimization. The injection moulding process window of polypropylene was validated using a metrological approach for the production of a microfluidic substrate. Dimensional accuracy of micro channels 48 µm wide and 110 µm deep, as well as quality surface topography replication (surface roughness from 30 nm to 360 nm) were investigated using non-contact measuring instruments such as an optical coordinate measuring machine and a white light interferometer respectively. The effect of the dimensional scale range on the micro/nano features replication was evaluated and it was found to be the dominant parameter if compared with the effect of the other process-related parameters investigated (melt and mould temperature, injection speed).
    Original languageEnglish
    Title of host publicationProceedings of PPE'09 : Polymer Process Engineering ‘09 Conference
    EditorsPhil Coates, Prof.
    Number of pages419
    Place of PublicationBradford (United Kingdom)
    PublisherUniversity of Bradford
    Publication date2009
    Pages199-232
    ISBN (Print)978-1-85143-262-2
    Publication statusPublished - 2009
    EventPolymer Process Engineering ‘09 Conference - Bradford, United Kingdom
    Duration: 27 Oct 200928 Oct 2009
    http://www.iom3.org/news/polymer-process-engineering-09-polymer-micro-and-nano-technology-focus

    Conference

    ConferencePolymer Process Engineering ‘09 Conference
    Country/TerritoryUnited Kingdom
    CityBradford
    Period27/10/200928/10/2009
    Internet address

    Keywords

    • white light interferometer
    • polymer microfluidics
    • uncertainty

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