Abstract:
A method and system are provided for monitoring erosion of system components in a plasma processing system. The system components contain a gas emitter that can release a sensor gas into a plasma process environment. The sensor gas can produce characteristic fluorescent light emission when exposed to a plasma. The method can evaluate erosion of system components in a plasma, by monitoring fluorescent light emission and a mass signal from the sensor gas. Consumable system components that can be monitored using the method include rings, shields, electrodes, baffles, and liners.
Abstract:
A plasma source assembly including an outer shield, a dielectric chamber wall, and a helical coil provided between the outer shield and the dielectric chamber wall. The plasma source assembly also includes a coil support assembly configured to facilitate repeatable performance of the helical coil. Preferably, the assembly includes a plenum cooling plate that is configured to supply cooling fluid to a first cooling rod provided within a resonator cavity defined by the chamber wall and the outer shield, and receive cooling fluid from a second cooling rod provided within the resonator cavity. The assembly preferably also includes a spacer provided between the first cooling rod and the second cooling rod, and coil insulators having holes configured to receive the helical coil.
Abstract:
A device and method for controlling the temperature of a plasma chamber inside wall or other surfaces exposed to the plasma by a plurality of temperature control systems. A plasma process within the plasma chamber can be controlled by independently controlling the temperature of segments of the wall or other surfaces.
Abstract:
An etch profile tailoring system (100), for use with an etching process carried out on a wafer (130), has a scavenging plate (170) with a baseline etch profile, and at least one etch profile tuning structure (such as a plug) (160) replaceably disposed with respect to the scavenging plate (170) and configured to alter the baseline etch profile during the etching process so as to arrive at a desired etch profile. A method of performing maintenance on an etch profile tailoring system (100) involves the steps of performing an etching process on a wafer in accordance with a desired etch profile, determining whether or not maintenance should be performed, and (if the maintenance decision indicates that maintenance should be performed) replacing with a second plug before conducting an etching process on additional wafers.
Abstract:
A multi-stop mechanism for providing multiple stop positions between first and second objects that are movable into and out of contact with one another. The multi-stop mechanism of the present invention includes a housing which secures the multi stop mechanism to the first object and/or the second object, a rotatble shaft rotatably mounted to the housing, and plurality of stops located on the rotatable shaft. When the shaft is rotated within the housing, the stops are rotated to different positions relative to the housing. As such, the rotatable shaft positions one of the stops to contact the first or second object that the multi-stop mechanism is not attached to.
Abstract:
An upper electrode assembly (UEL) is supported in an insulator in an opening in the top of an etch chamber in which large diameter substrates are processed with a flange of the UEL overlying the chamber wall around the opening with the insulator in between so that the insulator experiences primarily compressive and minimal shear loads. The electrode nonetheless fills the otherwise vacuum space between the UEL and the chamber wall above a shield ring that covers the insulator and portions of the adjacent UEL face and chamber wall.
Abstract:
An apparatus for processing semiconductors includes a processing chamber including a plurality of chamber walls, a substrate holder, positioned within the processing chamber and configured to support the substrate, and a linear displacement device, coupled between a base wall of the plurality of walls and the substrate holder and configured to move the substrate holder relative to the base wall. A shielding part extending from the substrate holder to be in close parallel relation with at least one of the plurality of walls such that a first area of the processing chamber is substantially shielded from a processing environment to which the substrate is exposed.
Abstract:
A plasma apparatus which includes a vacuum chamber provided with an exhaust port and a chuck assembly disposed inside the vacuum chamber. The plasma apparatus also includes a plasma confinement and pressure control apparatus disposed proximate to the substrate. The plasma confinement and pressure control apparatus includes a plurality of ring members disposed adjacent to each other in a superposed fashion and a plurality of lift assemblies disposed along a circumference of the plurality of ring members. The plurality of lift assemblies are arranged to support the plurality of ring members. The plasma confinement apparatus further includes at least one lift mechanism connected to the lift assemblies. The lift mechanism is configured to translate at least one of the plurality of ring members relative to a reference plane and to tilt at least one of the plurality of the ring members relative to the reference plane.
Abstract:
An animated toy effectively mimics human dance steps such as the Hokey Pokey with upper and lower halves of the torso pivoting about a diagonal waist laterally upwardly sloping to the left so that a left arm may be put forward and back. A spin/shake drive mechanism in a left leg selectively rotates the toy about a spin disk when activated in one direction and rotating a shake cam against the upper half of the torso when activated in another direction, thereby achieving each portion of the dance.