Patent ID: 11935736
Assignee: TOKYO ELECTRON LIMITED
Field: Chemical engineering (Chemistry)
Classification: CPC H  B  F | IPC B  F  H

Claim 0:
1. A substrate processing method for removing liquid on a substrate having an uneven pattern formed on a surface of the substrate and drying the substrate, the substrate processing method comprising:
forming a laminate having a two-layer structure including a first material in a solid state forming a lower layer and a second material in a solid state forming an upper layer, in a concave portion of the pattern;
removing the second material from the concave portion by performing any one of a first heating process, a first reaction process using a first gas, and a first light-emitting process, wherein said first heating process uses sublimation to remove the second material, wherein said first reaction process uses a gas reaction to remove the second material, and wherein said first light-emitting process uses decomposition to remove the second material; and
removing the first material from the concave portion by performing any one of a second heating process, a second reaction process using a second gas, and a second light-emitting process, wherein said second heating process uses sublimation to remove the first material, wherein said second reaction process uses a gas reaction to remove the first material, and wherein said second light-emitting process uses decomposition to remove the first material,
wherein the forming the laminate in the concave portion includes:
forming the first material in the solid state by supplying a first solution including the first material and a first solvent to fill the pattern with the first solution and then drying the first solvent in the first solution; and
forming the second material in the solid state by supplying a second solution including the second material and a second solvent on the first material to fill the pattern with the second solution and then drying the second solvent in the second solution.