A Coating Material That Can Form Hydrophobic (Water/Oil Repellent) Patterns by Photolithography
A photosensitive material that can form fine patterns with high liquid-repelling characteristics. Expected to be used in a wide range of fields such as printable electronics and bio/life sciences.
Furthermore, control of liquid behavior is possible by combining with hydrophilic substrates and TOK's super hydrophilic coating materials.
Wettability | Film Thickness※ | Pattern Dimensions* |
Contact Angle | Surface Free Energy (mJ/m2) |
|||
---|---|---|---|---|---|---|---|
Water(°) | Diiodomethane(°) | Hexadecane(°) | |||||
Positive Type | Water Repellent Oleophilic |
5nm | >2μm | 89.0![]() |
46.0![]() |
<5![]() |
36.6 |
Negative Type | Water Repellent Oil Repellent |
30nm | >sub-μm | 106.6![]() |
85.6![]() |
65.2![]() |
15.1 |
*Film thickness and pattern dimensions can be adjusted according to the deposition conditions and exposure model.
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