(Color online) (a) Schematics for the spraying tech-
nique to fabricate the superhydrophobic surface. (Before 4
wt% polymer solution is sprayed, 10 wt% polymer solution
is spin-coated on the slide glass to prevent exposure of the
bare slide glass around the area to measure the water contact
angle.) (b) Schematics for the SAM-coating process using an
ambient air chamber and a hot plate with trichlorosilane.