Patent ID: 11934101
Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY LTD.
Field: Optics (Instruments)
Classification: CPC G  H | IPC G  H

Claim 0:
1. A method of forming a photoresist pattern, comprising:
forming a photoresist layer comprising a photoresist composition over a substrate,
wherein the photoresist composition comprises:
metal particles; and
a thermally stable ligand attached to the metal particles;
wherein the thermally stable ligand includes C1-C7 alkyl groups or C1-C7 fluoroalkyl groups,
wherein the C1-C7 alkyl groups and C1-C7 fluoroalkyl groups are branched, unbranched, cyclic, or non-cyclic, and
wherein the C1-C7 alkyl or C1-C7 fluoroalkyl groups include one or more of —CF3, —SH, —S—, —P—, —PO2, —C(═O)SH, —C(═O)NH, —SO2OH, —SO2SH, —SOH, or —SO2—;

selectively exposing the photoresist layer to actinic radiation; and
developing the photoresist layer to form a pattern in the photoresist layer.