摘要:
The present invention provides for a method and an apparatus for using scatterometry to perform feedback and feed-forward control. A processing run of semiconductor devices is performed. Metrology data from the processed semiconductor devices is acquired. Error data is acquired by analyzing the acquired metrology data. A determination is made whether the error data merits modification to the processing of semiconductor devices. A feedback modification of the processing of semiconductor devices is performed in response to the determination that the error data merits modification to the processing of semiconductor devices. A feed-forward modification of the processing of the semiconductor devices is performed in response to the determination that the error data merits modification to the processing of semiconductor devices.
摘要:
The present invention provides for a method and an apparatus for using equipment state data for controlling a manufacturing process. Initial equipment state data is acquired. At least one semiconductor device is processed using the initial equipment state data is performed. Equipment and wafer state data processing is performed using data from the processing of the semiconductor device and the initial equipment state data. A determination is made whether at least one control input parameter used for processing of the semiconductor device is to be modified in response to performing the equipment and wafer state data processing. The control input parameter is modified in response to determining that at least one the control input parameter is to be modified.
摘要:
There is provided a supporting rim structure of an open-ended tampon applicator for firmly supporting a tampon pledget that has been assembled in the applicator. The applicator supports the pledget around an intermediate section between its insertion end and its rear portion so that the insertion end is exposed outside of the applicator and the rear portion is inside of the applicator. In particular, the rim structure firmly supports the pledget against an axial force subjected to the pledget by a forming tool that forms the insertion end of the pledget into a rounded, hemispherical shape and yet readily allows the pledget to eject from the applicator. The rim structure has a shape that tapers angularly inward from the body of the applicator to form a rigid brace that counters the axial force subjected by the forming tool. Thus, while preventing the insertion end of the pledget from receding back into the applicator, the rim structure allows the pledget to easily eject from the applicator.
摘要:
A heat reservoir device for maintaining a comestible at a desired consumption temperature consisting essentially of a shaped reinforced thermoset polyester resin, preferably one made by reacting isophthalic acid, propylene glycol, and fumaric acid to form the unsaturated polyester and then forming a solution thereof in a vinyl monomer. The invention also include the method of maintaining a comestible at a desired temperature using such device.
摘要:
A system for testing the existing protection schemes of a power converter. The system simulates the voltage regulator producing a voltage level below an under-voltage threshold. The system simulates the voltage regulator producing a voltage level above an over-voltage threshold. The system simulates a short in the power converter pulling down the input bus. The system simulates a short in the power converter pulling down the output bus. The system measures the system responses to these simulations against responses of a properly operating system and determines if the power converter's protection schemes are operating correctly.
摘要:
A method of working a vane assembly for a gas turbine engine involves a collar and an engine operated cooling baffle. The collar is connected to the cooling baffle and installed into the interior cavity of the vane assembly. A braze is applied to both a portion of the collar that interfaces with the cooling baffle and to a second portion of the collar that interfaces with the vane assembly. In one embodiment, the connection between the replacement collar and both the cooling baffle and vane assembly is accomplished by fitting the cooling baffle into the collar and by slipping a portion of the cooling baffle with a smaller cross-sectional area though the collar.
摘要:
A metallic coating for protecting a substrate from high temperature oxidation and hot corrosion environments comprising about 2.5 to about 13.5 wt. % cobalt, about 12 to about 27 wt. % chromium, about 5 to about 7 wt. % aluminum, about 0.0 to about 1.0 wt. % yttrium, about 0.0 to about 1.0 wt. % hafnium, about 1.0 to about 3.0 wt. % silicon, about 0.0 to about 4.5 wt. % tantalum, about 0.0 to about 6.5 wt. % tungsten, about 0.0 to about 2.0 wt. % rhenium, about 0.0 to about 1.0 wt. % molybdenum and the balance nickel.
摘要:
A method for forming a nozzle segment for a turbine stage of a gas turbine engine to a specific measurement range for a throat area. The nozzle segment comprising an inner platform, and outer platform, and a plurality of airfoils between the inner platform and outer platform. A requested throat area measurement is obtained for the nozzle segment, and a starting stacking angle for a plurality of through holes and pockets corresponding to the airfoils for both the inner platform and outer platform is selected, which are then machined. The airfoils, inner platform, and outer platform are assembled to form a vane segment that is machined to obtain a finished throat area. The finished throat area is measured, and a determination is made if the measured finish throat area complies with the requested throat area.
摘要:
A tampon applicator barrel including a cardboard tube having a first end and a second end and at least one gripping structure defined from the cardboard tube proximate the second end is provided. The cardboard tube has a wall thickness of between about 0.015 and about 0.020 inches, while the gripping structure has a height of up to about 0.035 inches.