Patent ID: 8512581

Claim:
A method for selectively coating a three-dimensional (3-D) substrate, said substrate comprising a plurality of of three-dimensional features, comprising the steps of: forming a three-dimensional substrate comprising the steps of: forming a sacrificial layer on a template, said template comprising a template substrate, said template substrate comprising a plurality of posts and a plurality of trenches between said plurality of posts; subsequently depositing a semiconductor layer; selectively etching said sacrificial layer and releasing said semiconductor layer from said template; and coating the top ridges or surfaces of said 3-D substrate using a liquid transfer coating step for applying a liquid coating material to a predetermined surface of said 3-D substrate, comprising: maintaining a thin sheet of liquid coating material on a flat surface; comprising: providing a micromachined plate having restrictive flow holes to restrict the refreshing flow rate of liquid coating material and capable of anchoring a thin sheet of liquid coating material in place; positioning said micromachined plate on a reservoir of liquid coating material under constant pressure; and controlling the volume of said thin sheet of liquid coating material according to the transfer of liquid coating material from said liquid coating material reservoir to said thin sheet of liquid coating material on said micromachined plate through said restrictive flow holes; contacting the substrate surface to be coated with said thin sheet of liquid coating material; removing the substrate from said thin sheet of liquid coating material; and curing the coating material on the substrate.