摘要:
A system for processing semiconductor wafers has process units on a deck of a frame. The process units and the deck have precision locating features, such as tapered pins, for precisely positioning the process units on the deck. Process units can be removed and replacement process units installed on the deck, without the need for recalibrating the load/unload robot. This reduces the time needed to replace process units and restart processing operations. Liquid chemical consumption during processing is reduced by drawing unused liquid out of supply lines and pumping it back to storage.
摘要:
A method for processing a semiconductor wafer or similar article includes the step of spinning the wafer and applying a fluid to a first side of the wafer, while it is spinning. The fluid flows radially outwardly in all directions, over the first side of the wafer, via centrifugal force. As the fluid flows off of the circumferential edge of the wafer, it is contained in an annular reservoir, so that the fluid also flows onto an outer annular area of the second side of the wafer. An opening allows fluid to flow out of the reservoir. The opening defines the location of a parting line beyond which the fluid will not travel on the second side of the wafer. An apparatus for processing a semiconductor wafer or similar article includes a reactor having a processing chamber formed by upper and lower rotors. The wafer is supported between the rotors. The rotors are rotated by a spin motor. A processing fluid is introduced onto the top or bottom surface of the wafer, or onto both surfaces, at a central location. The fluid flows outwardly uniformly and in all directions. A wafer support automatically lifts the wafer, so that it can be removed from the reactor by a robot, when the rotors separate from each other after processing.
摘要:
A method for processing a semiconductor wafer or similar article includes the step of spinning the wafer and applying a fluid to a first side of the wafer, while it is spinning. The fluid flows radially outwardly in all directions, over the first side of the wafer, via centrifugal force. As the fluid flows off of the circumferential edge of the wafer, it is contained in an annular reservoir, so that the fluid also flows onto an outer annular area of the second side of the wafer. An opening allows fluid to flow out of the reservoir. The opening defines the location of a parting line beyond which the fluid will not travel on the second side of the wafer. An apparatus for processing a semiconductor wafer or similar article includes a reactor having a processing chamber formed by upper and lower rotors. The wafer is supported between the rotors. The rotors are rotated by a spin motor. A processing fluid is introduced onto the top or bottom surface of the wafer, or onto both surfaces, at a central location. The fluid flows outwardly uniformly and in all directions. A wafer support automatically lifts the wafer, so that it can be removed from the reactor by a robot, when the rotors separate from each other after processing.
摘要:
A method for processing a semiconductor wafer or similar article includes the step of spinning the wafer and applying a fluid to a first side of the wafer, while it is spinning. The fluid flows radially outwardly in all directions, over the first side of the wafer, via centrifugal force. As the fluid flows off of the circumferential edge of the wafer, it is contained in an annular reservoir, so that the fluid also flows onto an outer annular area of the second side of the wafer. An opening allows fluid to flow out of the reservoir. The opening defines the location of a parting line beyond which the fluid will not travel on the second side of the wafer. An apparatus for processing a semiconductor wafer or similar article includes a reactor having a processing chamber formed by upper and lower rotors. The wafer is supported between the rotors. The rotors are rotated by a spin motor. A processing fluid is introduced onto the top or bottom surface of the wafer, or onto both surfaces, at a central location. The fluid flows outwardly uniformly and in all directions. A wafer support automatically lifts the wafer, so that it can be removed from the reactor by a robot, when the rotors separate from each other after processing.
摘要:
A system for processing a workpiece includes a base having a bowl or recess for holding a processing fluid. A sonic energy source, such as a megasonic transducer, provides sonic energy into a processing fluid in the bowl. A process head holds a workpiece. A process head lifter lowers the head holding the workpiece into the processing fluid in the bowl. Sonic energy is provided to the workpiece through the processing fluid, optionally while the processing head spins the workpiece. The processing fluid may include de-ionized water and an etchant.
摘要:
An apparatus for processing a semiconductor wafer or similar article includes a reactor having a processing chamber formed by upper and lower rotors. The wafer is supported between the rotors. The rotors are rotated by a spin motor. A processing fluid is introduced onto the top or bottom surface of the wafer, or onto both surfaces, at a central location. The fluid flows outwardly uniformly and in all directions. A wafer support automatically lifts the wafer, so that it can be removed from the reactor by a robot, when the rotors separate from each other after processing.
摘要:
In a process for treating a workpiece such as a semiconductor wafer, a processing fluid is selectively applied or excluded from an outer peripheral margin of at least one of the front or back sides of the workpiece. Exclusion and/or application of the processing fluid occurs by applying one or more processing fluids to the workpiece while the workpiece and a reactor holding the workpiece are spinning. The flow rate of the processing fluids, fluid pressure, and/or spin rate are used to control the extent to which the processing fluid is selectively applied or excluded from the outer peripheral margin.
摘要:
In a method for cleaning a wafer, the wafer is placed a processing chamber. A layer or film of liquid is provided on the wafer. Electrically charged aerosol droplets of a liquid are formed and directed to the workpiece. The charged aerosol particles accumulate on the workpiece. This creates an electrical charge on the workpiece. Contaminant particles on the workpiece are released and/or repelled by the electrical charge and are carried away in the liquid layer. The liquid layer is optionally continuously replenished with fresh liquid. The liquid layer may be thinned out in a localized aerosol impingement area, via a jet of gas, to allow the electrical charge of the aerosol to better collect on or near the surface of the workpiece.
摘要:
A process system for processing a semiconductor wafer or other similar flat workpiece has a head including a workpiece holder. A motor in the head spins the workpiece. A head lifter lowers the head to move the workpiece into a bath of liquid in a bowl. Sonic energy is introduced into the liquid and travels through the liquid to the workpiece, to assist in processing. The head is lifted to bring the workpiece to a rinse position. The bath liquid is drained. The workpiece is rinsed via radial spray nozzles in the base. The head is lifted to a dry position. A reciprocating swing arm sprays a drying fluid onto the bottom surface of the spinning wafer, to dry the wafer.
摘要:
A workpiece support apparatus for use in a process vessel and process system for treating semiconductor workpieces. The process vessel is to be utilized in an integrated tool for wet chemical treatment of a semiconductor workpiece. The workpiece support apparatus includes a rotor having a central cavity and guide pins mounted at an outer perimeter. A workpiece support having extendable workpiece support fingers is connected to the rotor. The extendable workpiece support fingers are moveable from a first position to a second position. A bellows seal connects the workpiece support to the rotor. A fluid delivery tube is positioned in the central cavity of the rotor and connected to a supply of fluid. When the extendable workpiece support fingers are in the first position, the guide pins of the rotor cannot interfere with the loading of a workpiece onto the extendable workpiece support fingers, and when the extendable workpiece support fingers are in the second position, a pressurized fluid is delivered through the delivery tube to create a low pressure region adjacent an inner surface of the workpiece, lifting the workpiece off the extendable workpiece support fingers, exposing the entire backside of the workpiece for processing.