摘要:
The present invention provides a substrate cleaning method capable of reducing non-uniformity of a removal efficiency of particles between lots with a simple procedure. The substrate cleaning method comprises: a step of supplying a gas into a cleaning tank, while an irradiation of ultrasonic waves to the cleaning liquid in the cleaning tank is being stopped, so as to increase a dissolved gas concentration of the gas dissolved in the cleaning liquid in the cleaning tank to a saturated concentration; and a step of irradiating ultrasonic waves to the cleaning liquid in the cleaning tank so as to clean a substrate immersed in the cleaning liquid in the cleaning tank. In the step of increasing the dissolved gas concentration to the saturated concentration, the gas is supplied to the cleaning tank so as to increase the dissolved gas concentration of the cleaning liquid in the cleaning tank to the saturated concentration. In addition, in the step of increasing the dissolved gas concentration to the saturated concentration, the irradiation of the ultrasonic waves to the cleaning liquid in the cleaning tank is stopped.
摘要:
The present invention provides a substrate cleaning method capable of reducing non-uniformity of a removal efficiency of particles between lots with a simple procedure. The substrate cleaning method comprises: a step of supplying a gas into a cleaning tank, while an irradiation of ultrasonic waves to the cleaning liquid in the cleaning tank is being stopped, so as to increase a dissolved gas concentration of the gas dissolved in the cleaning liquid in the cleaning tank to a saturated concentration; and a step of irradiating ultrasonic waves to the cleaning liquid in the cleaning tank so as to clean a substrate immersed in the cleaning liquid in the cleaning tank. In the step of increasing the dissolved gas concentration to the saturated concentration, the gas is supplied to the cleaning tank so as to increase the dissolved gas concentration of the cleaning liquid in the cleaning tank to the saturated concentration. In addition, in the step of increasing the dissolved gas concentration to the saturated concentration, the irradiation of the ultrasonic waves to the cleaning liquid in the cleaning tank is stopped.
摘要:
The present invention provides a substrate cleaning method capable of removing particles from the entire surface of a substrate to be processed at a high removing efficiency. In the substrate cleaning method according to the present invention, a substrate to be processed W is immersed in a cleaning liquid in a cleaning tank 12. Then, ultrasonic waves are generated in the cleaning liquid contained in the cleaning tank 12, so that the substrate to be processed W is subjected to an ultrasonic cleaning process. While the substrate to be processed is being cleaned, a dissolved gas concentration of a gas dissolved in the cleaning liquid contained in the cleaning tank is changed.
摘要:
The present invention provides a substrate cleaning method capable of removing particles from the entire surface of a substrate to be processed at a high removing efficiency. In the substrate cleaning method according to the present invention, a substrate to be processed W is immersed in a cleaning liquid in a cleaning tank 12. Then, ultrasonic waves are generated in the cleaning liquid contained in the cleaning tank 12, so that the substrate to be processed W is subjected to an ultrasonic cleaning process. While the substrate to be processed is being cleaned, a dissolved gas concentration of a gas dissolved in the cleaning liquid contained in the cleaning tank is changed.
摘要:
A substrate cleaning method can uniformly removing particles from substrates at a high removing efficiency. The substrate cleaning method includes the steps of immersing substrates W in a cleaning liquid in a cleaning tank 12, and generating ultrasonic waves in the cleaning liquid contained in the cleaning tank. A region in the cleaning tank toward which the cleaning liquid is supplied is varied with respect to a vertical level in the step of generating ultrasonic waves in the cleaning liquid while the cleaning liquid is being supplied into the cleaning tank.
摘要:
Disclosed is a substrate cleaning method for prevent damage to a pattern formed on a substrate. The substrate cleaning method includes cleaning the substrate by striking cleaning particulates carried in a flow of dry air or inert gas against a surface of the substrate, and removing the cleaning particulates.
摘要:
A substrate cleaning method can uniformly removing particles from substrates at a high removing efficiency. The substrate cleaning method includes the steps of immersing substrates W in a cleaning liquid in a cleaning tank 12, and generating ultrasonic waves in the cleaning liquid contained in the cleaning tank. A region in the cleaning tank toward which the cleaning liquid is supplied is varied with respect to a vertical level in the step of generating ultrasonic waves in the cleaning liquid while the cleaning liquid is being supplied into the cleaning tank.
摘要:
The present invention provides a substrate cleaning method capable of removing particles from the entire surface of a substrate to be processed at a high removing efficiency. In the substrate cleaning method according to the present invention, a substrate to be processed W is immersed in a cleaning liquid in a cleaning tank 12. Then, ultrasonic waves are generated in the cleaning liquid contained in the cleaning tank 12, so that the substrate W is subjected to an ultrasonic cleaning process. The step of generating ultrasonic waves includes a step of generating ultrasonic waves in the cleaning tank while the cleaning liquid is being supplied into the cleaning tank. A supply rate at which the cleaning liquid is supplied into the cleaning tank at a certain timing in the step of generating ultrasonic waves differs from a supply rate at which the cleaning liquid is supplied into the cleaning tank at another timing in the step of generating ultrasonic waves.
摘要:
The present invention provides a substrate cleaning method capable of removing particles from the entire surface of a substrate to be processed at a high removing efficiency. In the substrate cleaning method according to the present invention, a substrate to be processed W is immersed in a cleaning liquid in a cleaning tank 12. Then, ultrasonic waves are generated in the cleaning liquid contained in the cleaning tank 12, so that the substrate W is subjected to an ultrasonic cleaning process. The step of generating ultrasonic waves includes a step of generating ultrasonic waves in the cleaning tank while the cleaning liquid is being supplied into the cleaning tank. A supply rate at which the cleaning liquid is supplied into the cleaning tank at a certain timing in the step of generating ultrasonic waves differs from a supply rate at which the cleaning liquid is supplied into the cleaning tank at another timing in the step of generating ultrasonic waves.
摘要:
An angle detector with self-calibration capability has a number of first scale read heads and one second scale read head around the periphery of a single scale disk and includes means for performing self-calibration by determining measurement differences between the second scale read head and the individual first scale read heads and calculating the average thereof.