摘要:
A self-aligning mandrel assembly is provided. The assembly includes a cylindrical inner core and a fulcrum disposed on an outer surface of the cylindrical inner core. A mandrel shell surrounds the cylindrical inner core. The mandrel shell has a wafer preparation material affixed to an outer surface thereof, and the mandrel shell is pivotably supported by the fulcrum such that the mandrel shell aligns with a surface of a substrate when the wafer preparation material contacts the surface of the substrate.
摘要:
An apparatus for preparing a semiconductor wafer is provided. The apparatus includes a wafer drive assembly having a pair of wafer drive rollers for rotating a semiconductor wafer in a vertical orientation. The wafer drive assembly is configured such that the wafer drive rollers are controllably movable from a first position to a second position. Also provided as part of the apparatus is a pair of wafer preparation assemblies movably disposed in an opposing relationship above the wafer drive assembly. Each of the wafer preparation assemblies has a first wafer preparation member and a second wafer preparation member. The wafer preparation assemblies being movable into a first position in which each of the first wafer preparation members is position to perform a first wafer preparation operation on the wafer and into a second position in which each of the second wafer preparation members is positioned to perform a second wafer preparation operation on the wafer.
摘要:
An apparatus for preparing a semiconductor wafer is provided. The apparatus includes a pair of drive rollers disposed so as to support a semiconductor wafer in a substantially vertical orientation. Each of the drive rollers is configured to be coupled to a drive belt for rotating the drive rollers. The apparatus further includes a pair of wafer preparation assemblies that is movably disposed in an opposing relationship. Each of the wafer preparation assemblies have a first wafer preparation member and a second wafer preparation member. The wafer preparation assemblies being movable into a first position in which each of the first wafer preparation members is positioned to perform a first wafer preparation operation on the wafer and into a second position in which each of the second wafer preparation members is positioned to perform a second wafer preparation operation on the wafer.
摘要:
Methods for preparing semiconductor wafers are provided. A method includes disposing a pair of wafer preparation assemblies in an opposing relationship in an enclosure. Each of the wafer preparation assemblies having a first wafer preparation member and a second wafer preparation member. The method includes disposing a semiconductor wafer between the wafer preparation assemblies in a vertical orientation and rotating the wafer. The method also includes orienting the wafer preparation assemblies such that the first wafer preparation members contact opposing surfaces of the rotating wafer in an opposing relationship, and orienting the wafer preparation assemblies such that the second wafer preparation members contact opposing surfaces of the rotating wafer in an opposing relationship.
摘要:
A system and methods for substrate preparation are provided. In one example, a wafer processing system includes a system enclosure that contains wafer processing apparatus within an isolated wafer processing environment. The wafer processing apparatus include a pair of immersion tanks in the lower front region of the system with a pair of wafer pickers behind the immersion tanks to extract wafers from the tanks. In the rear of the system, a pair of brush boxes are located in a lower region with a pair of dryer units positioned above the brush boxes. A robot arm is positioned between the pair of immersion tanks and the pair of brush boxes in a middle region of the system, and is configured to transition wafers between the processing apparatus. A pair of output shelves holding output cassettes is positioned over the immersion tanks. The output cassettes receive clean wafers after processing. In another example, a method for preparing a substrate is provided. The method includes the batch processing of substrates through substrate processing apparatus arranged within a substrate processing system.
摘要:
A method and apparatus for cleaning a wafer oriented vertically is provided. The apparatus includes a first brush and a second brush located horizontally from the first brush. During use, a wafer is orientated vertically between the first and second brushes. The brushes are brought into contact with the wafer and rotated thereby engaging the wafer with rollers. By rotating the rollers, the wafer is also rotated. Liquid is sprayed towards the brushes and wafer. By orienting the wafer vertically, liquid and particulates contained therein readily fall from the wafer due to gravity. This is particularly advantageous when cleaning larger diameter wafers in which particulates must be removed from a larger wafer surface area.
摘要:
A cascaded disk scrubbing system and method are provided. The cascaded disk scrubbing system includes an array of rows of brush pairs. Each row includes a plurality of counter-rotating brush pairs that are arranged horizontally and longitudinally, and configured to receive and process a disk in a vertical orientation through disk preparation zones defined by each pair of brushes. Below and between the pairs of brushes is a track that is configured to apply a rotation to the disk and to transition the disk in a vertical orientation through the brush pairs. Nozzles dispense fluids on and over the brush pairs, and the brush pairs are configured such that fluids are dispensed through the brush pairs. Nozzles dispense a curtain of fluid between each disk preparation zone, and the cascaded disk scrubbing system is configured to progress from dirtiest to cleanest as the disk transitions through each disk preparation zone.
摘要:
A cascaded wafer scrubbing system and method are provided. The cascaded wafer scrubbing system includes an array of rows of brush pairs. Each row includes a plurality of counter-rotating brush pairs that are arranged horizontally and longitudinally, and configured to receive and process a wafer in a vertical orientation through wafer preparation zones defined by each pair of brushes. Below and between the pairs of brushes is a track that is configured to apply a rotation to the wafer and to transition the wafer in a vertical orientation through the brush pairs. Nozzles dispense fluids on and over the brush pairs, and the brush pairs are configured such that fluids are dispensed through the brush pairs. Nozzles dispense a curtain of fluid between each wafer preparation zone, and the cascaded wafer scrubbing system is configured to progress from dirtiest to cleanest as the wafer transitions through each wafer preparation zone.
摘要:
Liquid is removed from batches of substrates by apparatus and methods for drying substrates that have been wet in an elongated liquid bath. The substrates are moved relative to the bath and an elongated gas-filled volume at rates of movement selected according to the location of the batches of substrates in the bath or the volume. As an example, the substrates and the bath are separated at a controlled rate to form a thin layer of liquid on each substrate as each substrate enters the gas-filled volume. The gas-filled volume is defined by an elongated hot chamber and hot gas directed into the volume and across the substrates and out of the volume continuously transfers thermal energy to the substrates . The flow rate of the gas into the volume is related to introduction of the substrates into the bath to avoid disturbing the liquid in the bath. The thermal energy transferred to the substrates in the volume evaporates the thin layer from the substrates without decreasing the rate of separation of the substrates and the bath below the maximum rate of such separation at which a meniscus will form between the bath and the surface of one of the substrates during such separation. Relative humidity in the volume is controlled by sensing the relative humidity and regulating the speed of a fan that draws gas from the volume.
摘要:
Liquid is removed from disks by apparatus and methods for drying a disk that has been wet in a liquid bath. The disk and the bath are separated at a controlled rate to form a monolayer of liquid on the disk as the disk is positioned in a gas-filled volume. The separation may be by moving the disk out of the liquid bath, and the controlled rate is generally not less than the maximum rate at which a meniscus will form between the liquid bath and the surface of the disk when the liquid bath and the disk are separated. The gas-filled volume is defined by a hot chamber that continuously transfers thermal energy to the disk in the gas-filled volume. Hot gas directed into the volume and across the disk and out of the volume continuously transfers thermal energy to the disk. The directing of the gas out of the volume is independent of the separation of the bath and the disk. The thermal energy transferred to the disk in the volume evaporates the monolayer from the disk without decreasing the rate of separation of the disk and the bath below the maximum rate of such separation at which a meniscus will form between the bath and the surface of the disk during such separation. In addition to such separation, and directing of the hot gas across the disk and out of the volume, the relative humidity in the volume is kept low to inhibit recondensation of the liquid on the disks.