Patent ID: 8097402

Claim:
A method of processing a substrate comprising: receiving a plurality of un-patterned substrates and associated substrate data, each un-patterned substrate having one or more previously-created layers thereon; depositing at least one target layer on the one or more previously-created layers; depositing a bottom anti-reflective coating (BARC) layer on the at least one target layer on a first set substrates; depositing an Electric-Field Enhancement Layer (E-FEL) on the BARC layer, wherein the E-FEL comprises a non-light sensitive masking material; depositing a first Active-Species layer on the E-FEL, wherein the first Active-Species layer comprises a first light sensitive masking material; depositing a first topcoat layer on the first Active-Species layer; exposing the first Active-Species layer using a first reticle and a first radiation source, wherein a first pattern of first charged species regions are created in the first Active-Species layer; creating a first enhancement pattern in the E-FEL by establishing a first voltage difference across the first Active-Species layer and the E-FEL, wherein a plurality of first soluble regions are created in a single-patterned E-FEL by transferring the first pattern in the first Active-Species layer to the single-patterned E-FEL; removing the first topcoat layer and the first Active-Species layer; depositing a second Active-Species layer on the single-patterned E-FEL having the first pattern, wherein the second Active-Species layer comprises a second light sensitive masking material; depositing a second topcoat layer on the second Active-Species layer; exposing the second Active-Species layer using a second reticle and a second radiation source, wherein a second pattern of second charged species regions are created in the second Active-Species layer; creating a second enhancement pattern in the E-FEL by establishing a second voltage difference across the second Active-Species layer and the E-FEL, wherein a plurality of second soluble regions are created in a double-patterned E-FEL by transferring the second pattern in the second Active-Species layer to the double-patterned E-FEL; and developing the first soluble regions and the second soluble regions, wherein a first set of double-patterned substrates are created.