Drop casting
Make a bubble of liquid on top of a surface then either
Spin the chip on a spinner, or
Wait 30 seconds and rinse with clean solvent, or
Wait until on all solvent evaporates (this will leave drying spots, non-uniform coverage)
Dip coating
Dip the chip into the liquid, wait 5 - 30 seconds (depends on the recipe), pull out the chip and either
Rinse with clean solvent, or
Wait until on all solvent evaporates (this will leave drying spots, non-uniform coverage)