Patent ID: 9177817
Filing Date: 2015-11-03
Classification: B81C,G03F,H01L

Abstract:
1. A method for producing structures, the method comprising: depositing a plurality of layers of photo resist onto a substrate, the plurality of layers having an upper surface and at least one layer having a higher photo resist sensitivity than a photoresist sensitivity of at least one other layer of the plurality of layers; exposing a first area of the upper surface to a first beam of one of electromagnetic radiation and charged particles wherein a portion of each of the plurality of layers beneath the first area of the upper surface becomes substantially insoluble when contacted with a predetermined solvent; exposing a second area of the upper surface, contiguous with the first area, to a second beam of one of electromagnetic radiation and charged particles wherein a portion of the at least one layer having a higher photo resist sensitivity beneath the second area becomes substantially insoluble when contacted with the predetermined solvent; and contacting the plurality of layers with the predetermined solvent to dissolve soluble portions to provide the structure.