Patent ID: 11919051
Assignee: SCREEN HOLDINGS CO., LTD.
Field: Semiconductors (Electrical engineering)
Classification: CPC B  H | IPC B  H

Claim 0:
1. A substrate cleaning apparatus comprising:
a processing solution supply part that supplies a processing solution containing solvent and solute, onto a top of substrate;
a removal liquid supply part that supplies a removal liquid onto said substrate; and
a controller that controls said processing solution supply part and said removal liquid supply part,
wherein said solvent has volatility,
said processing solution transforms into a particle retention layer as a result of at least part of said solvent being volatilized from said processing solution supplied onto said substrate and causing said processing solution to solidify or harden,
a solute component that is said solute contained in said particle retention layer or that is derived from said solute is insoluble or poorly soluble in said removal liquid, and said solvent is soluble in said removal liquid, and
after said particle retention layer is formed on said substrate, said controller controls said removal liquid supply part to supply said removal liquid to said particle retention layer, said particle retention layer being divided into fine pieces by a physical force received from said removal liquid while said particle retention layer is removed from above the entire top of said substrate.