摘要:
In order to obtain stable lens positions to have an object imaged in focus when the temperature of lenses changes, an imaging device of the present invention comprises a system control section 60 having a imaging mode and a correction mode, the imaging mode in which a group of lenses 10 are controlled and moved to focusing positions for a predetermined distance at first and are further moved to correct the focusing positions for the predetermined distance to the object during imaging according to the temperature compensation data, the correction mode in which the group of lenses 10 are controlled and moved to have the temperature compensation data corrected when the temperature change is larger than or equal to a predetermined temperature difference, a correction coefficient calculation section 50 for calculating the correction coefficient to correct the temperature compensation data based on first focusing positions of the group of lenses to which the group of lenses are moved according to the temperature compensation data before corrected and second focusing positions of the group of the lenses to which the group of the lenses are automatically moved from the first focusing positions to have the object the predetermined distance away imaged in focus based on the focus evaluation value under a condition under which a moving range of the group of lenses is restricted, when the system control section is on the correction mode, a temperature compensation data correction section 51 for correcting the temperature compensation data to be used for the imaging mode based on the correction coefficient calculated by the correction coefficient calculation section.
摘要:
Coil is made to be disposed with gap opposed to the surface of wafer, and wafer stage is made to move in X and Y direction and R and θ direction. When supplying an alternating current to coil with the frequency swept by impedance analyzer, the magnetic field made to be induced in coil will operate on the conductive film of wafer. By changing a parameter (a frequency or an angle) influencing the skin effect of the conductive film and giving the parameter to coil, the state where a magnetic field is not made to penetrate relatively the film of wafer and the state where the magnetic field is made to penetrate relatively the film can be formed. From the variation of various values corresponding to the eddy current induced based on the change of state influenced by the skin effect of the conductive film, the film thickness of wafer can be measured with sufficient accuracy.
摘要:
A method and device for forecasting/detecting a polishing end point and for monitoring a real-time film thickness to suppress Joule heat loss due to the eddy current to the minimum, to precisely forecast/detect a polishing end point, to precisely calculate the remaining film thickness to be removed, and polishing rate. An inductor 36 in a sensor is arranged adjacent to a predetermined conductive film 28, and a magnetic flux change induced in the conductive film 28 by a magnetic flux formed by the inductor 36 is monitored, and by use of a magnetic flux change when a film thickness becomes corresponding to skin depth in which a film thickness in polishing is determined by the material of the predetermined conductive film 28 as a factor, a magnetic flux change part to forecast a polishing end point in the magnetic flux change process is detected, and a polishing end point is forecasted from the magnetic flux change part, and a polishing rate and a remaining film thickness amount to be removed are calculated on the spot.
摘要:
To eliminate the unevenness of the remaining film thickness of the wafers, and increase the polishing efficiency, reduce the running cost and enhance the yield. A CMP apparatus 1 is equipped with a polishing recipe preparing means 3 that prepares polishing conditions so that the polishing conditions such as polishing speed, polishing pressure, abrasive and the like for the wafers become optimal, a remaining film thickness forecasting means 4 that forecasts the remaining film thickness of the wafer to be polished under the polishing conditions after polishing, a remaining film thickness measuring apparatus 4 that measures the remaining film thickness of the wafer after the polishing, and a computer 6 that controls the polishing conditions on the basis of the measurement results of the remaining film thickness. Further, the computer 6 includes a calculating unit 11 that calculate the difference between the measured value of the remaining film thickness and the forecasted value thereof, and a polishing condition correcting/changing unit 13 that corrects/changes the polishing conditions so that the calculated difference becomes minimal, and thereby, the correction/change of the polishing conditions is carried out in real time.
摘要:
The present invention provides a bottomed cylindrical container, comprising a body wall, a bottom wall, and a ring-shaped foot downwardly extending from the bottom wall, said container being produced by thermo-molding a resin sheet, characterized in that said foot is formed by folding an inner wall by compressed fluid to be fusion-bonded with an outer wall, so as to form the foot comprising the inner wall and the outer wall. The present invention also provides a bottomed cylindrical container, comprising a body wall having a grounding edge at a lower end thereof, and a bottom wall, said container being produced by thermo-molding a resin sheet, characterized in that said bottom wall connects with an upper edge of an inner wall produced by folding back the body wall along the grounding edge and by fusion-bonding it to an inner periphery of the body wall. In addition, the present invention provides the methods for thermo-molding these containers and their apparatuses.
摘要:
An encryption process is employed in the LSI design so as to improve confidentiality of the circuit design data over conventional examples. In the encryption process, confidential circuit design data is encrypted to produce encrypted design data and a cipher key. The encrypted design data is provided to the user who conducts a design/verification process. The key is also provided as required. In the design/verification process, the encrypted design data is subjected to various processes without disclosing the contents of the original circuit. In a decoding process, the encrypted design data subjected to the design/verification process is decoded to produce original circuit design data.
摘要:
Information about an exclusive operation among a plurality of blocks and interconnection information about a sharable resource within each of these blocks are defined. Based on the sharable resource information and the inter-block exclusive operation information, a resource sharable among the blocks is extracted. Module specifications, in which information about interfaces, power dissipation, operation models and top-level hierarchy interconnection is stored, exclusive operation information describing an exclusive operation rule among the blocks, and prioritized function information used for preventing respective functions from being enabled at the same time are input to an generator, which is an automatic generating tool. In this manner, a power and clock management module for use in power save management, a wrapper bank select module storing interconnection information, a shared resource module storing information about a sharable resource and an optimized top-level hierarchy module storing interconnection information about an optimized top-level hierarchy are generated. Downsizing and power saving are realized by resource sharing and power management.
摘要:
A method and device for forecasting and detecting a polishing endpoint and real time film thickness monitoring capable of suppressing to a minimum Joule heat loss due to an eddy current, and precisely forecasting and detecting the polishing endpoint, and precisely calculating a remaining film amount to be removed and a polishing rate. A high frequency inductor sensor is positioned close to the conductive film, and monitors a flux change induced in the conductive film. When a film thickness becomes a film thickness corresponding to a skin depth of the conductive film a method of calculating on the spot a polishing rate and a remaining film amount to be removed is provided.
摘要:
An object of the present invention is to provide a method of forecasting and detecting a polishing endpoint and the device thereof and a real time film thickness monitoring method and the device thereof capable of suppressing a Joule heat loss to the minimum due to an eddy current, and precisely forecasting and detecting the polishing endpoint, and moreover, precisely calculating a remaining film amount to be removed and a polishing rate and the like on the spot so as to be able to accurately evaluate whether the predetermined conductive film is appropriately removed.To achieve the above described object, the present invention brings an inductor in a high frequency inductor type sensor close to the predetermined conductive film, and monitors a flux change induced in the predetermined conductive film by the flux formed by the inductor 36, and based on a flux change when a film thickness during the polishing becomes a film thickness corresponding to a skin depth decided with the material of the predetermined conductive film as a factor, detects a film thickness reference point, and forecasts the polishing endpoint from this film thickness reference point, and provides a method of calculating on the spot a polishing rate and a remaining film amount to be removed.
摘要:
The present invention aims to provide a wafer polish monitoring method and device for detecting the end point of the polishing of a conductive film with high precision and accuracy by monitoring the variation of the film thickness of the conductive film without adverse influence of slurry or the like after the film thickness of the conductive film decreases to an extremely small film thickness defined by the skin depth. To achieve this objective, the present invention provides a wafer polish monitoring method by which a high-frequency transmission path is formed in a portion facing the conductive film on the surface of the wafer, the polishing removal state of the conductive film is evaluated based at least on the transmitted electromagnetic waves passing through the high-frequency transmission path or the reflected electromagnetic waves that are reflected without passing through the high-frequency transmission path, and the end point of the polishing removal and the point equivalent to the end point of the polishing removal are detected.