Patent ID: 8017308
Filing Date: 2011-09-13
Classification: G03F

Abstract:
1. A method of forming a pattern on a complex non-planar surface of a part comprising: forming a layer of photoresist on a part having a surface comprising a complex non-planar surface area; positioning said part within a chamber defined by a chamber base and a pressure vessel such that said part is positioned within said chamber base, wherein a first pressure source is coupled to said chamber base and a second pressure source is coupled to said pressure vessel; securing a deformable mask in a retaining device between said chamber base and said pressure vessel so as to align said deformable mask towards said photoresist on said part and divide said chamber into a pressure vessel space above said mask and a chamber base space below said mask; drawing a first vacuum in said chamber base space using said first pressure source; applying a positive pressure in said pressure vessel space using said second pressure source to deform said mask to correspond substantially to said part including said complex non-planar surface area; exposing said photoresist on said part through said mask after said mask deforms to correspond to said part including said complex non-planar surface area; removing said part from said chamber; and developing said photoresist on said part.