摘要:
A method and system for cleaning a substrate is provided. More particularly systems and methods that allows for precise tailoring of megasonics distribution at a substrate surface to be above the threshold required for particle removal efficiency (PRE), yet below the value which causes structural damage are provided. This method utilizes multiple megasonics transducers operated at very low power densities in a single substrate immersion processor. This method is shown to produce high cleaning efficiencies without damage to 45 nm devices. Further, sonoluminescence studies demonstrate that the transducers are operated in the single bubble sonoluminescence (SBSL) regime, well below the cavitation threshold for transient multiple-bubble sonoluminescence (MBSL).
摘要:
A method and apparatus for supplying greater fluid flow and/or fluid volume from a fluid provided from a facility source to a substrate processing chamber is provided. The apparatus couples to an existing facility fluid source and accumulates the fluid, and the flow characteristics of the accumulated fluid are enhanced for delivery to the processing chamber. The apparatus includes a tank in fluid communication with the facility source and one or more processing chambers, and a valve disposed between the tank and the processing chambers adapted to receive a signal from a controller to facilitate filling or draining of the tank. The apparatus and method affects cost of ownership by altering the pressure and/or volume of the existing facility source without the need to alter the facility source.