Abstract:
A method for cleaning a load lock in a substrate processing system includes, in a first period, opening a first valve in fluid communication with a gas source to supply gas through a first vent into a gas volume of the load lock. The gas is supplied at a pressure and flow rate sufficient to disturb particles from surfaces of the load lock. The method includes, in a second period subsequent to the first period and with the first valve opened, opening a second valve in fluid communication with a pump and turning on the pump to flush the gas and particles from the gas volume of the load lock, and, in a third period subsequent to the second period, closing the first valve while continuing to pump the gas and the particles from the gas volume of the load lock via the second valve.
Abstract:
A chamber is formed to enclose a processing region. A passageway is configured to provide for entry of a substrate into the processing region and removal of the substrate from the processing region. A substrate support structure is disposed within the processing region and configured to support the substrate within the processing region. At least one gas input is configured to supply one or more gases to the processing region. At least one gas output is configured to exhaust gases from the processing region. A humidity control device is configured to control a relative humidity within the processing region. At least one heating device is disposed to provide temperature control of the substrate within the processing region. The processing region of the chamber is directly accessible from a substrate handling module configured to operate at atmospheric pressure.
Abstract:
A chamber is formed to enclose a processing region. A passageway is configured to provide for entry of a substrate into the processing region and removal of the substrate from the processing region. A substrate support structure is disposed within the processing region and configured to support the substrate within the processing region. At least one gas input is configured to supply one or more gases to the processing region. At least one gas output is configured to exhaust gases from the processing region. A humidity control device is configured to control a relative humidity within the processing region. At least one heating device is disposed to provide temperature control of the substrate within the processing region. The processing region of the chamber is directly accessible from a substrate handling module configured to operate at atmospheric pressure.
Abstract:
A substrate processing system includes a chamber configured to process a semiconductor substrate. At least one surface of the chamber includes a high surface area finish. A purge/vent system is configured to selectively supply purge gas over the high surface area finish of the at least one surface to trap particles in the high surface area finish without opening the chamber. The high surface area finish on the at least one surface of the chamber has a porosity within a predetermined range from 30-60%. The porosity is defined by a normalized density of the high surface area finish relative to an underlying native bulk material of the at least one surface of the chamber.
Abstract:
A method for cleaning a chamber of a substrate processing system includes maintaining the chamber at a first predetermined pressure and, without a substrate present within the chamber, providing, from a fluid source via a nozzle assembly, a fluid, and injecting the fluid into the chamber via the nozzle assembly. The fluid source is maintained at a second predetermined pressure that is greater than the first predetermined pressure. Injecting the fluid into the chamber maintained at the first predetermined pressure causes the fluid to aerosolize into a mixture of gas and solid particles.
Abstract:
A method for diagnosing a particle removal system of a substrate processing system includes dispersing synthetic particles onto a substrate; exciting the synthetic particles using a light source having a first predetermined wavelength; measuring photoluminescence of the synthetic particles at a second predetermined wavelength that is different than the first predetermined wavelength and determining a first number of the synthetic particles on the substrate; at least one of moving the substrate through a chamber or processing the substrate in the chamber of the substrate processing system; exciting the synthetic particles using light having the first predetermined wavelength; measuring photoluminescence of the synthetic particles at the second predetermined wavelength that is different than the first predetermined wavelength; and determining a second number of the synthetic particles on the substrate based on the measuring.
Abstract:
An edge ring assembly used in a plasma etching chamber includes a dielectric coupling ring and a conductive edge ring. In one embodiment, the dielectric coupling ring has an annular projection extending axially upward from its inner periphery. The dielectric coupling ring is adapted to surround a substrate support in a plasma etching chamber. The conductive edge ring is adapted to surround the annular projection of the dielectric coupling ring. A substrate supported on the substrate support overhangs the substrate support and overlies the annular projection of the dielectric coupling ring and a portion of the conductive edge ring. In another embodiment, the dielectric coupling ring has a rectangular cross section. The dielectric coupling ring and the conductive edge ring are adapted to surround a substrate support in a plasma etching chamber. A substrate supported on the substrate support overhangs the substrate support and overlies a portion of the conductive edge ring.