Patent ID: 11972948
Assignee: BREWER SCIENCE, INC.
Field: Semiconductors (Electrical engineering)
Classification: CPC H  G | IPC G  H

Claim 17:
18. A method of forming a structure, said method comprising:
providing a substrate, said substrate including one or more intermediate layers thereon, said one or more intermediate layers comprising:
a spin-on carbon layer;
a hardmask layer comprising one or more of a silane, siloxane, silsesquioxane, silicon oxynitride, silicon nitride, polysilicon, or amorphous silicon; or
both said spin-on carbon layer and said hardmask layer on said spin-on carbon layer;

spin coating a composition on said spin-on carbon layer or on said hardmask layer to form an adhesion layer, said adhesion layer being non-conductive and having an average thickness that is greater than a monolayer but less than 9 nm, wherein said composition comprises a component chosen from:
styrenes;
epoxies;
novolacs;
cyanurates;
polymers comprising recurring monomers selected from the group consisting of vinylic monomers, vinylic monomers grafted with a moiety, acrylic monomers, and combinations thereof;
or combinations of the forgoing, wherein:
said vinylic monomers are selected from the group consisting of glycidyl acrylate, glycidyl methacrylate, and combinations thereof;
said vinylic monomers grafted with a moiety are selected from the group consisting of chromophores with carboxylic acid moieties, alkyl carboxylic acids, aromatic carboxylic acids, ethers with carboxylic acid moieties, and combinations of the foregoing; and
said acrylic monomers are selected from the group consisting of 2-hydroxy-3-phenoxypropyl acrylate, hydroxy propyl methacrylate, 2-hydroxyethyl methacrylate, 2-hydroxyethyl acrylate, tert-butyl methacrylate, and combinations thereof;

forming a photoresist layer comprising a metal on said adhesion layer; and
subjecting at least a portion of said photoresist layer to EUV radiation.