摘要:
A method for detecting and analyzing candidate lesions in a magnetic resonance image of a breast. The method includes the steps of: accessing a plurality of temporal magnetic resonance images of the breast; identifying candidate lesions by performing a temporal pattern analysis of the plurality of images to produce temporal features based on an uptake phase and a washout phase; performing a morphological operation on the candidate lesions to produce morphological features; and classifying the candidate lesions using the morphological features and temporal features to produce classified candidate lesions.
摘要:
A high-speed serial data transceiver includes multiple receivers and transmitters for receiving and transmitting multiple analog, serial data signals at multi-gigabit-per-second data rates. Each receiver includes a timing recovery system for tracking a phase and a frequency of the serial data signal associated with the receiver. The timing recovery system includes a phase interpolator responsive to phase control signals and a set of reference signals having different predetermined phases. The phase interpolator derives a sampling signal, having an interpolated phase, to sample the serial data signal. The timing recovery system in each receiver independently phase-aligns and frequency synchronizes the sampling signal to the serial data signal associated with the receiver. A receiver can include multiple paths for sampling a received, serial data signal in accordance with multiple time-staggered sampling signals, each having an interpolated phase.
摘要:
An apparatus for detecting the end-point of an electropolishing process of a metal layer formed on a wafer (1004) includes an end-point detector. The end-point detector is disposed adjacent the nozzle (1008) used to electropolish the wafer. In one embodiment, the end-point detector is configured to measure the optical reflectivity of the portion of the wafer being electropolished.
摘要:
In one aspect of the present invention, an exemplary method is provided for electroplating a conductive film on a wafer. The method includes electroplating a metal film on a semiconductor structure having recessed regions and non-recessed regions within a first current density range before the metal layer is planar above recessed regions of a first density, and electroplating within a second current density range after the metal layer is planar above the recessed regions. The second current density range is greater than the first current density range. In one example, the method further includes electroplating in the second current density range until the metal layer is planar above recessed regions of a second density, the second density being greater than the first density, and electroplating within a third current density range thereafter.
摘要:
A high-speed serial data transceiver includes multiple receivers and transmitters for receiving and transmitting multiple analog, serial data signals at multi-gigabit-per-second data rates. Each receiver includes a timing recovery system for tracking a phase and a frequency of the serial data signal associated with the receiver. The timing recovery system includes a phase interpolator responsive to phase control signals and a set of reference signals having different predetermined phases. The phase interpolator derives a sampling signal, having an interpolated phase, to sample the serial data signal. The timing recovery system in each receiver independently phase-aligns and frequency synchronizes the sampling signal to the serial data signal associated with the receiver. A receiver can include multiple paths for sampling a received, serial data signal in accordance with multiple time-staggered sampling signals, each having an interpolated phase.
摘要:
Methods and apparatus, including computer program products, implementing and using techniques for open-loop waveform acquisition. In general, in one aspect, the invention provides a method for open-loop waveform acquisition. The method includes acquiring an S-curve of an acquisition loop of an electron-beam probe system. The S-curve represents a response of the acquisition loop to changes of potential differences between the acquisition loop and a device under test. The method includes calibrating the acquisition loop to obtain a linear region in the acquired S-curve and using the linear portion of the acquired S-curve to calculate voltage at a probe point of the device under test.
摘要:
A wafer chuck for holding a wafer during electropolishing and/or electroplating of the wafer includes a top section, a bottom section, and a spring member. In accordance with one aspect of the present invention, the top section and the bottom section are configured to receive the wafer for processing. The spring member is disposed on the bottom section and configured to apply an electric charge to the wafer. In accordance with another aspect of the present invention, the spring member contacts a portion of the outer perimeter of the wafer. In one alternative configuration of the present invention, the wafer chuck further includes a seal member to seal the spring member from the electrolyte solution used in the electropolishing and/or electroplating process.
摘要:
An electropolishing apparatus for polishing a metal layer formed on a wafer (31) includes an electrolyte (34), a polishing receptacle (100), a wafer chuck (29), a fluid inlet (5, 7, 9), and at least one cathode (1, 2, 3). The wafer chuck (29) holds and positions the wafer (31) within the polishing receptacle (100). The electrolyte (34) is delivered through the fluid inlet (5, 7, 9) into the polishing receptacle (100). The cathode (1, 2, 3) then applies an electropolishing current to the electrolyte to electropolish the wafer (31). In accordance with one aspect of the present invention, discrete portions of the wafer (31) can be electropolished to enhance the uniformity of the electropolished wafer.
摘要:
An electropolishing apparatus for polishing a metal layer formed on a wafer (31) includes an electrolyte (34), a polishing receptacle (100), a wafer chuck (29), a fluid inlet (5, 7, 9), and at least one cathode (1, 2, 3). The wafer chuck (29) holds and positions the wafer (31) within the polishing receptacle (100). The electrolyte (34) is delivered through the fluid inlet (5, 7, 9) into the polishing receptacle (100). The cathode (1, 2, 3) then applies an electropolishing current to the electrolyte to electropolish the wafer (31). In accordance with one aspect of the present invention, discrete portions of the wafer (31) can be electropolished to enhance the uniformity of the electropolished wafer.
摘要:
A storm resistant device for a window that has a window frame enclosing at least one sash slidingly and pivotally mounted therein. The sash has side rails and the frame has vertical jambs that engage the side rails of the sash to raise and lower and pivot the sash. The storm resistant device comprises a first elongated bracket having a substantially Z-shaped cross section with two end segments and a middle segment connecting the two end segments. The middle segment is connectable to the side rails of the sashes with one of the end segments extending outward from the sash toward an adjacent jamb. There is a second elongated bracket having a substantially L-shaped cross section with two legs, one leg of the bracket adapted to be mounted to the jamb with a second leg of the L extending toward an adjacent side rail of the sash. The first and second brackets are mounted to the frame and sash, respectively, so that when the sash is closed, the one end segment of the first bracket interlocks with the second leg of the second bracket and prevents the sash from pivoting when pressure is applied to the sash.