Patent ID: 8211782

Claim:
A method of forming an active electronic device comprising: selectively depositing a first patterned contact layer over a substrate, said first patterned contact layer defining a first electrode of said active device; depositing a first insulating layer over said first patterned contact layer so as to cover at least said first electrode; selectively depositing a second patterned contact layer over said first insulating layer, said second patterned contact layer defining second and third electrodes of said active device, at least a portion of each of said second and third electrodes positioned to overlap portions of said first electrode; depositing a functional layer over said second patterned contact layer; selectively additively depositing insulating material over at least a portion of said functional layer to form first and second wall structures, said first wall structure positioned to be substantially over said second electrode, said second wall structure positioned to be substantially over said third electrode, and said first and second wall structures substantially not being over said first electrode, said first and second wall structures defining a well region therebetween; and selectively depositing a semiconductor layer from a solution within said well region such that said first and second wall structures confine said semiconductor layer therein.