Patent ID: 8507185

Claim:
A method of forming an electronic device, comprising: (a) providing a semiconductor substrate comprising one or more layers to be patterned; (b) applying a first layer of a first photosensitive composition over the one or more layers to be patterned; (c) exposing the first layer to activating radiation through a first photomask; (d) developing the exposed first layer to form a resist pattern; (e) heat treating the resist pattern in a hardbake process; (f) treating the hardbaked resist pattern in a spin coating process with a material effective to make alkaline a surface of the resist pattern, wherein the material comprises an aqueous base developer; (g) applying a second layer of a second photosensitive composition over the treated resist pattern and the one or more layers to be patterned, wherein the second photosensitive composition comprises a resin component and a photoacid generator; (h) exposing the second layer to activating radiation; and (i) developing the exposed second layer, leaving a portion of the second layer after development.