Adhesion Promoters & Thinners

Adhesion Promoters & Thinners for Photodefineable and Non-Photodefineable Products

Adhesion promoters are required for all non-photodefinable products (except for PI2574).

Photodefinable products have built-in adhesion promoters but adhesion can be enhanced with the use of these adhesion promoters.

Experimental results indicate that only a monomolecular layer is needed to promote adhesion. These results indicate that a Si-O bond is formed with the substrate. Adhesion results are sensitive to the number of bonding sites on the substrate surface. For example, adhesion to silicon dioxide is typically superior to adhesion on silicon nitride. These promoters are not effective with substrates that do not form any native oxide.