Patent ID: 10008396

Abstract:
A method for drying a substrate including a plurality of high aspect ratio (HAR) structures includes, after at least one of (i) wet etching, and (ii) wet cleaning, and (iii) wet rinsing the substrate using at least one of (a) wet etching solution, and (b) wet cleaning solution, and (c) wet rinsing solution, respectively, and without drying the substrate: depositing, between the plurality of HAR structures, a solution that includes a polymer component, a nanoparticle component, and a solvent; wherein as the solvent evaporates, a sacrificial bracing material precipitates out of solution and at least partially fills the plurality of HAR structures, the sacrificial bracing material including (i) polymer material from the polymer component of the solution and (ii) nanoparticle material from the nanoparticle component of the solution; and exposing the substrate to plasma generated using a plasma gas chemistry to volatilize the sacrificial bracing material.