摘要:
An apparatus and method for suppressing dynamic instability in a bleed duct of a gas turbine engine includes a fan bypass duct configured to permit a flow of air through the gas turbine engine. The fan bypass duct defines a fan duct surface, and the bleed duct has an inlet in fluid communication with the fan bypass duct and a flow control valve having an opened position and a closed position. A flow diverter is positioned on the fan duct surface proximate the inlet of the bleed duct and diverts the flow of air from the inlet when the flow control valve is closed, while permitting a portion of the flow of air to enter the inlet when the flow control valve is opened.
摘要:
A transcowl for a gas turbine engine thrust reverser includes an arcuate outer wall; an arcuate inner wall; and an arcuate baffle positioned between the inner and outer walls at a forward end of the transcowl. The baffle has an arcuate cross-sectional shape which defines a forward-facing interior area. An arcuate forward seal is carried at a forward end of the inner wall. The forward seal includes a plurality of axially-extending, spaced-apart arcuate seal teeth which collectively define a labyrinth seal.
摘要:
The present invention therefore provides a compound of formula (I) and compositions for treating diseases associated with cysteine protease activity. The compounds are reversible inhibitors of cysteine proteases S, K, F, L and B. Of particular interest are diseases associated with Cathepsin S. In addition this invention also discloses processes for the preparation of such inhibitors.
摘要:
A gas turbine engine exhaust nozzle includes a row of laterally sinuous chevrons extending from an aft end of an exhaust duct. The chevrons have radially outer and inner surfaces bound by a laterally sinuous trailing edge extending between a base of the chevrons adjoining the duct and an axially opposite apex of the chevrons. Each chevron has a compound arcuate contour both axially and laterally, and the sinuous trailing edge of the chevrons further compounds the arcuate configuration of each chevron.
摘要:
“A method of determining the thickness of a conductive film is disclosed. The method employs measured voltage and current responses that have been temperature-compensated to determine the thickness of the conductive film. The temperature compensation uses a temperature compensation factor obtained from a calibration substrate different from the target substrate on which the conductive film being measured is disposed. The calibration substrate has a conductive film formed of a conductive material that is substantially similar to the conductive material of the target substrate.”
摘要:
Improved mechanisms of removal of etch byproducts, dielectric films and metal films near the substrate bevel edge, and etch byproducts on substrate backside and chamber interior is provided to avoid the accumulation of polymer byproduct and deposited films and to improve process yield. An exemplary plasma etch processing chamber configured to clean a bevel edge of a substrate is provided. The chamber includes a bottom edge electrode surrounding a substrate support in the plasma processing chamber, wherein the substrate support is configured to receive the substrate and the bottom edge electrode and the substrate support are electrically isolated from each other by a bottom dielectric ring. The chamber also includes a top edge electrode surrounding a gas distribution plate opposing the substrate support, wherein the top edge electrode and the gas distribution plate are electrically isolated from each other by a top dielectric ring, and the top edge electrode and the bottom edge electrode are configured to generate a cleaning plasma to clean the bevel edge of the substrate.
摘要:
A plasma processing system including a plasma chamber for processing a substrate is disclosed. The apparatus includes a chuck configured for supporting a first surface of the substrate. The apparatus also includes a plasma resistant barrier disposed in a spaced-apart relationship with respect to a second surface of the substrate, the second surface being opposite the first surface, the plasma resistant barrier substantially shielding a center portion of the substrate and leaving an annular periphery area of the second surface of the substrate substantially unshielded by the plasma resistant barrier. The apparatus further includes at least one powered electrode, the powered electrode operating cooperatively with the plasma resistant barrier to generate confined plasma from a plasma gas, the confined plasma being substantially confined to the annular periphery portion of the substrate and away from the center portion of the substrate.
摘要:
A method of determining a first thickness of a first conductive layer formed of a first conductive material on a target substrate, the target substrate further having a second conductive layer formed of a second conductive material different from the first conductive material, is disclosed. The method includes positioning a first eddy current sensor at a given position relative to the target substrate, the first eddy current sensor being in a spaced-apart relationship with respect to the target substrate when positioned at the given position. The method also includes measuring, using the first eddy current sensor while the first eddy current sensor is positioned at the give position, a first set of electrical responses that includes at least one of a first voltage measurement and a first current measurement, the measuring the first set of electrical responses being performed at a first target substrate temperature. The method further includes measuring, using the first eddy current sensor while the first eddy current sensor is positioned at the given position, a second set of electrical responses that includes at least one of a second voltage measurement and a second current measurement, the measuring the second set of electrical responses being performed at a second target substrate temperature different from the first target substrate temperature. The method also includes calculating a third set of electrical responses using at least the first set of electrical responses and the second set of electrical responses, and a first temperature coefficient of the first conductive layer, the third set of electrical responses representing responses substantially attributable to the first conductive layer; and determining the first thickness from the third set of electrical responses.
摘要:
A robot apparatus for executing a set of service procedures on a plasma processing system including a docking port is disclosed. The apparatus includes a platform and a docking probe coupled to the platform, wherein the docking probe is configured to dock with the docking port. The apparatus also includes a robot arm coupled to the platform, and further configured to substantially perform the set of service procedures, and a tool coupled to the robot arm. The apparatus further includes a computer coupled to the platform, wherein the computer is further configured to execute the set of service procedures, and wherein when the docking probe is docked to the docking port, the set of service procedures is performed by the tool.
摘要:
In a plasma processing system, a method of reducing byproduct deposits on a set of plasma chamber surfaces of a plasma processing chamber is disclosed. The method includes providing a deposition barrier in the plasma processing chamber, the deposition barrier is configured to be disposed in a plasma generating region of the plasma processing chamber, thereby permitting at least some process byproducts produced when a plasma is struck within the plasma processing chamber to adhere to the deposition barrier and reducing the byproduct deposits on the set of plasma processing chamber surfaces.