Patent ID: 8449681

Claim:
A method, comprising: receiving a substrate comprising a refractory metal layer, a photoresist layer, and a bottom anti-reflective coating layer, wherein the refractory metal layer comprises one of titanium nitride, or tantalum nitride; wherein the bottom anti-reflective coating layer is disposed over the refractory metal layer, and wherein the photoresist layer is disposed over the bottom anti-reflective coating layer, and; applying a composition to the substrate, the composition comprising: a nontoxic solvent capable of dissolving acrylic polymer and phenolic polymer; and Tetramethylammonium Hydroxide (TMAH) mixed with the nontoxic solvent; and removing the substrate from the composition upon a predetermined duration, wherein, after removing the substrate from the composition, the photoresist layer and the bottom anti-reflective coating layer are removed from the substrate while the refractory metal layer remains on the substrate and is not damaged by the composition; and wherein the method is executed in a high productivity combinatorial (HPC) system.