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

Claim 28:
29. 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 having an average thickness that is greater than a monolayer but less than 9 nm and a metal content of less than about 0.001% by weight, based upon the total weight of the adhesion layer taken as 100% by weight, said composition comprising:
a component chosen from acrylates, methacrylates, acrylic acids, styrenes, vinyls, epoxies, novolacs, cyanurates, or mixtures thereof; and
a compound having a moiety 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

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