Patent ID: 9091932
Filing Date: 2015-07-28
Classification: G03F,Y10T

Abstract:
1. A method, comprising: forming a three-dimensional integrated structure having a substrate and a plurality of projecting elements projecting from a flat surface of said substrate, the forming including: forming a dry film photoresist film on said flat surface of said substrate; and forming the projecting elements from the dry film photoresist film, said projecting elements having a shape factor greater than 6, wherein forming the projecting elements includes: patterning said photoresist film in a negative form with respect to said three-dimensional integrated structure to be obtained; and developing said photoresist film by immersing said substrate covered with said photoresist film in a developer solution; the developer solution including a developer and remover configured to facilitate a dissolving action of said developer on said photoresist film, wherein said remover includes a solvent selected from the group consisting of: acetone; a combination of 1-methoxy-2-propanol-acetate, 2-pentanone and ethyl-lactate; and a combination of 1-methoxy-2-propanol-acetate, methyl-ethyl-ketone and ethyl-lactate.