A method for cleaning a semiconductor wafer, including: supplying a semiconductor wafer whose surface has an oxide film formed thereon with a cleaning solution capable of removing the oxide film; and cleaning, while rotating, the semiconductor wafer to remove the oxide film formed on the surface of the semiconductor wafer. The oxide film is removed such that a rotational speed of the semiconductor wafer is 300 rpm or more after the cleaning with the cleaning solution is started and before a water-repelling surface is attained, and then the rotational speed of the semiconductor wafer is changed to 100 rpm or less to completely remove the oxide film. A method for cleaning a semiconductor wafer by which both surface roughness improvement and surface defect suppression can be achieved.

Methods and apparatuses for cleaning semiconductor wafers(202). Thereinto, a method comprises transferring one or more wafers(202) to at least one first tank(201) containing cleaning chemical, one or more second tanks(207) containing cleaning liquid successively for implementing batch cleaning process; taking the one or more wafers(202) out of the cleaning liquid in the one or more second tanks(207) and transferring the one or more wafers(202) to one or more single wafer cleaning modules(510) for implementing single wafer cleaning and drying processes; wherein control and keep a certain thickness of liquid film(204,504) on the one or more wafers(202) from the moment of the one or more wafers out of the cleaning chemical in the at least one first tank(201) till the one or more wafers(202) are immersed in the cleaning liquid of the one or more second tanks(207), and/or from the moment of the one or more wafers(202) out of the cleaning liquid in the one or more second tanks(207) till the one or more wafers(202) are transferred to the one or more single wafer cleaning modules (510).

A substrate processing method includes a substrate holding step of horizontally holding a substrate, a liquid film forming step of supplying a processing liquid onto the upper surface of the substrate to form a liquid film of the processing liquid covering the upper surface of the substrate, a liquid film-removed region-forming step of partially eliminating the processing liquid from the liquid film of the processing liquid to form a liquid film-removed region in the liquid film of the processing liquid, a liquid film-removed region enlarging step of enlarging the liquid film-removed region toward the outer periphery of the substrate, and a hydrogen fluoride atmosphere-holding step of keeping the ambient atmosphere at the boundary between the liquid film-removed region and the liquid film of the processing liquid as an atmosphere of hydrogen fluoride-containing vapor, in parallel with the liquid film-removed region enlarging step.

Embodiments of the present disclosure relate to a method for cleaning an in-process wafer. The method comprises causing the in-process wafer to be rotated, causing function water to be applied to a surface of the rotated in-process wafer to generate a flowing function water film on the rotated in-process wafer, causing the surface of the in-process wafer to be cleaned by a sonic device for a first period, causing the sonic device to be lifted and/or rotation speed of the rotated in-process wafer to be accelerated to separate the sonic device from the flowing function water film, causing the function water to be applied to the surface of the rotated in-process wafer for a second period after separating the sonic device from the function water film, and causing the surface of the in-process wafer to be dried.

Contamination of a bottom surface of a substrate caused by a processing liquid used for cleaning a top surface of the substrate can be suppressed. After performing a liquid processing on the top surface of the substrate and a liquid processing on the bottom surface of the substrate in parallel while rotating the substrate by a substrate holding/rotating unit, when stopping the liquid processing on the top surface of the substrate and the liquid processing on the bottom surface of the substrate, a control unit 18 stops a supply of the processing liquid onto the top surface of the substrate by a first processing liquid supply device 73, and then, stops a supply of the processing liquid onto the bottom surface of the substrate by a second processing liquid supply device 71.

A treatment liquid for a semiconductor device is a treatment liquid including water, an organic solvent, and two or more nitrogen-containing aromatic heterocyclic compounds.

A substrate processing method includes: supplying a treatment liquid to a substrate held in a horizontal position; substituting the treatment liquid supplied to the substrate with a solvent having a lower surface tension than the treatment liquid; and drying the substrate by shaking off the solvent on the substrate at a preset rotation number so that an intermediate portion of the substrate located between a central portion and a peripheral portion of the substrate is last dried.

A substrate processing method includes a first processing liquid supplying step of supplying a first processing liquid to an upper surface of the substrate, a holding layer forming step of solidifying or curing the first processing liquid to form a particle holding layer on the upper surface of the substrate, a holding layer removing step of peeling and removing the particle holding layer from the upper surface of the substrate, a liquid film forming step of forming, after removing the particle holding layer from the substrate, a liquid film of the second processing liquid, a solidifying step of cooling the liquid film to a temperature not more than a melting point of the sublimable substance to make the liquid film solidify on the substrate and form a solid film, and a sublimating step of sublimating and thereby removing the solid film from the substrate.

The present disclosure provides a method for wafer bonding, including providing a wafer, forming a sacrificial layer on a top surface of the first wafer, trimming an edge of the first wafer to obtain a first wafer area, cleaning the top surface of the first wafer, removing the sacrificial layer, and bonding the top surface of the first wafer to a second wafer having a second wafer area greater than the first wafer area.

Provided is a substrate processing apparatus including: a first cleaning member configured to clean a substrate by a contact face on which a skin layer is provided; and a second cleaning member configured to clean the substrate after cleaned by the first cleaning member, by a contact face on which a skin layer is not provided.