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    Surface Science Blog You have only scratched the surface.

    Susanna Laurén

    Susanna Laurén

    Susanna is an Application Scientist at Biolin Scientific. In her PhD thesis, she developed fabrication methods for a new type of inorganic-organic polymers. Microfabricated polymer chips were utilized as tool for biomolecule separation in analytical chemistry.

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    ~ 7 min

    What are PFAS? - Remediation and alternatives

    PFAS are often referred to as forever chemicals. Research efforts are focused on removing PFAS from the environment and finding ecological alternatives.

    > 3 min

    What is a wetting agent and where are they used?

    A wetting agent is a surface-active molecule used to reduce the surface tension of water.

    > 3 min

    Optimization of photoresist adhesion through contact angle measurement

    This blog post discusses the importance of adhesion in the lithography process and how to predict adhesion with contact angle measurements.

    < 6 min

    Wetting in electronics - How HMDS treatment works?

    HMDS is used to render the surface of silicon more hydrophobic and thus to match better with the chemistry of the photoresist.

    < 4 min

    Wafer cleaning process - RCA cleaning and contact angle

    This blog post explains the concept of RCA cleaning and it's relation to contact angle.

    ~ 3 min

    Silicon wafer cleanliness evaluation through contact angle measurement

    Contact angle measurements can be used to evaluate the cleanliness of silicon wafers.

    < 4 min

    How to utilize the rotational stage for automated wafer mapping?

    Attension Theta Wafer offers an optical tensiometer for fully automated mapping of up to 12-inch wafers.

    > 4 min

    Emulsion instability phenomena – reasons and prevention

    Emulsion instability mechanisms include; creaming, sedimentation, flocculation, coalescence, and Oswaltd ripening

    < 6 min

    What are surfactants and how do they work?

    The term surfactant comes from the word surface active agent. At the interface, they align themselves so that the hydrophobic part is in the air and the hydrophilic part is in water. This will cause a decrease in surface or interfacial tensions.

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