Patents by Inventor Satoru Oishi

Satoru Oishi has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 7173716
    Abstract: An alignment apparatus for aligning a reflective reticle includes a light source for emitting alignment light, an optical alignment mark provided on the reticle, and a reference mark provided on a reticle stage that holds the reticle. A detecting unit detects the alignment light reflected from the alignment mark and the reference mark, and the reticle is aligned on the basis of the result of detection by the detection unit.
    Type: Grant
    Filed: May 19, 2005
    Date of Patent: February 6, 2007
    Assignee: Canon Kabushiki Kaisha
    Inventors: Satoru Oishi, Hideki Ina, Takehiko Suzuki, Koichi Sentoku
  • Publication number: 20070017110
    Abstract: measuring method for measuring a position of the surface of a substrate, wherein measurement light is obliquely projected onto the substrate surface and the measurement light on that surface is detected and wherein, on the basis of a position of the detected measurement light and a predetected offset, the position of the substrate surface with respect to a direction of an optical axis of the projection optical system is measured, the method including: memorizing, as a first position, a position of a measurement point on the substrate while using, as a reference, a reference mark provided on a substrate stage configured to hold and move the substrate; measuring, in accordance with information concerning the memorized first position and in relation to the measurement point, the position of the measurement light as a first measurement position; rotating the substrate by 180 deg.
    Type: Application
    Filed: July 20, 2006
    Publication date: January 25, 2007
    Inventors: Satoru Oishi, Hideki Ina
  • Publication number: 20070019857
    Abstract: Disclosed is a method and apparatus which are arranged to detect magnitude of correlation between (i) an explanatory variable corresponding to operation data related to an operation made by an exposure apparatus for exposing a substrate, and (ii) a response variable corresponding to inspection data related to a result of inspection made to the substrate after the same is exposed, the magnitude of correlation between the explanatory variable and the response variable being detected with respect to each of different combinations of operation data pieces, and also arranged to specify, on the basis of detected correlation magnitudes and with respect to one of the different combinations of operation data pieces, a category of the operation data and the correlation between the explanatory variable and the response variable.
    Type: Application
    Filed: July 19, 2006
    Publication date: January 25, 2007
    Inventors: Hideki Ina, Satoru Oishi
  • Patent number: 7148973
    Abstract: A method of determining relative position between a reflective reticle and a substrate includes a detection step of detecting relative position between a transmissive reference mark on a reticle stage and a substrate alignment mark on a substrate stage through a reflective optical system which projects a pattern of the reflective reticle onto the substrate with extreme ultraviolet light, and a determination step of determining relative position between the reflective reticle and the substrate based on the detection result in the detection step.
    Type: Grant
    Filed: June 30, 2005
    Date of Patent: December 12, 2006
    Assignee: Canon Kabushiki Kaisha
    Inventors: Koichi Sentoku, Hideki Ina, Takehiko Suzuki, Satoru Oishi
  • Patent number: 7110116
    Abstract: An alignment apparatus for aligning a reflective reticle includes a light source for emitting alignment light, an optical alignment mark provided on the reticle, and a reference mark provided on a reticle stage that holds the reticle. A detecting unit detects the alignment light reflected from the alignment mark and the reference mark, and the reticle is aligned on the basis of the result of detection by the detection unit.
    Type: Grant
    Filed: October 25, 2002
    Date of Patent: September 19, 2006
    Assignee: Canon Kabushiki Kaisha
    Inventors: Satoru Oishi, Hideki Ina, Takehiko Suzuki, Koichi Sentoku
  • Publication number: 20060195215
    Abstract: A management system including an acquisition device for acquiring actual processing results obtained by operating an industrial device with a set parameter value and another parameter value, and an estimated processing result, an inspection device for inspecting the processing result obtained with the set parameter value, and acquiring and accumulating an inspection result value, a change device for changing the set parameter value on the basis of the processing results acquired by the acquisition device and the inspection result value obtained by the inspection device, an evaluation device for evaluating a variation state of the processing results on the basis of an inspection result value accumulated by the inspection device, and a decision device for deciding, on the basis of an evaluation result by the evaluation device, a frequency at which the acquisition device is executed.
    Type: Application
    Filed: April 19, 2006
    Publication date: August 31, 2006
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Takehiko Suzuki, Hideki Ina, Koichi Sentoku, Takahiro Matsumoto, Satoru Oishi
  • Patent number: 7075618
    Abstract: A system for controlling an apparatus. The system includes an operating device for operating the apparatus based on a first parameter value and a second parameter value, an inspecting device for inspecting operation results of the apparatus corresponding to the first parameter value, an estimating device for estimating operation results of the apparatus corresponding to the first parameter value on the basis of the operation results corresponding to the first parameter value, and a revising device for revising parameter values to operate the apparatus on the basis of the operation results obtained by the inspecting device and the estimated operation results obtained by the estimating device.
    Type: Grant
    Filed: October 15, 2002
    Date of Patent: July 11, 2006
    Assignee: Canon Kabushiki Kaisha
    Inventors: Hideki Ina, Takehiko Suzuki, Koichi Sentoku, Takahiro Matsumoto, Satoru Oishi
  • Patent number: 7069104
    Abstract: A management system including an acquisition device for acquiring actual processing results obtained by operating an industrial device with a set parameter value and another parameter value, and an estimated processing result, an inspection device for inspecting the processing result obtained with the set parameter value, and acquiring and accumulating an inspection result value, a change device for changing the set parameter value on the basis of the processing results acquired by the acquisition device and the inspection result value obtained by the inspection device, an evaluation device for evaluating a variation state of the processing results on the basis of an inspection result value accumulated by the inspection device, and a decision device for deciding, on the basis of an evaluation result by the evaluation device, a frequency at which the acquisition device is executed.
    Type: Grant
    Filed: April 28, 2003
    Date of Patent: June 27, 2006
    Assignee: Canon Kabushiki Kaisha
    Inventors: Takehiko Suzuki, Hideki Ina, Koichi Sentoku, Takahiro Matsumoto, Satoru Oishi
  • Patent number: 7067826
    Abstract: A reticle stage reference mark 3 of material having high reflectivity to alignment illumination light is provided on a reticle 5, and a chuck mark 8 of material having high reflectivity to the alignment illumination light is provided on a wafer chuck 11. A relative position of the reticle stage reference mark 3 to the chuck mark 8 is detected by using a first position detection optical system 1 and a first illumination optical system 2, and relative alignment is performed between the reticle 5 and a wafer 10.
    Type: Grant
    Filed: May 21, 2002
    Date of Patent: June 27, 2006
    Assignee: Canon Kabushiki Kaisha
    Inventors: Takehiko Suzuki, Hideki Ina, Koichi Sentoku, Satoru Oishi
  • Publication number: 20060106566
    Abstract: A position detecting method includes the steps of forming an image of a mark on a sensor, performing a first process that processes a raw signal obtained from the sensor with plural parameters, performing a second process that determines an edge of a signal processed by the first process for each parameter, determining a parameter from a result of the second process obtained for each parameter, and calculating a position of the mark based on a determined parameter.
    Type: Application
    Filed: December 28, 2005
    Publication date: May 18, 2006
    Inventors: Satoru Oishi, Takehiko Suzuki
  • Publication number: 20060092420
    Abstract: A method detects a position of a mark based on an image signal of the mark. The method includes steps of obtaining a first position of the mark by performing a first process for the image signal, extracting plural feature values from the image signal based on the first position, and detecting the position of the mark by obtaining an offset value for the first position based on the plural feature values.
    Type: Application
    Filed: October 5, 2005
    Publication date: May 4, 2006
    Inventor: Satoru Oishi
  • Patent number: 7035759
    Abstract: A position detecting method includes the steps of forming an image of a mark on a sensor, performing a first process that processes a raw signal obtained from the sensor with plural parameters, performing a second process that determines an edge of a signal processed by the first process for each parameter, determining a parameter from a result of the second process obtained for each parameter, and calculating a position of the mark based on a determined parameter.
    Type: Grant
    Filed: September 24, 2003
    Date of Patent: April 25, 2006
    Assignee: Canon Kabushiki Kaisha
    Inventors: Satoru Oishi, Takehiko Suzuki
  • Publication number: 20060050274
    Abstract: An exposure apparatus performs AGA measurement by using a predetermined sample shot group formed on a wafer, and decides an alignment parameter. The exposure apparatus executes wafer alignment processing and exposure processing by using the alignment parameter. The exposure apparatus notifies a central processing unit of AGA measurement results and the alignment parameter. An overlay inspection apparatus measures an actual exposure position on the exposed wafer, and notifies the central processing unit of the measurement result. The central processing unit optimizes alignment processing on the basis of the AGA measurement results, alignment parameter, and actually measured exposure position.
    Type: Application
    Filed: September 6, 2005
    Publication date: March 9, 2006
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Takahiro Matsumoto, Hideki Ina, Takehiko Suzuki, Koichi Sentoku, Satoru Oishi
  • Patent number: 7010380
    Abstract: A system which manages a plurality of semiconductor exposure apparatuses holds TIS information representing the characteristics of the respective semiconductor exposure apparatuses. In a semiconductor exposure apparatus, a parameter value is optimized on the basis of AGA measurement results obtained using a set parameter value and another parameter value and AGA measurement estimation results obtained by virtually changing the parameter value. Whether to reflect the optimized parameter value in another exposure device is decided on the basis of the TIS information. If it is decided to reflect the optimized parameter value, the parameter value of another semiconductor exposure apparatus is optimized by the optimized parameter value. In this manner, the optimization result of a parameter value by a given exposure device can be properly reflected in another exposure device, realizing efficient parameter value setting.
    Type: Grant
    Filed: April 28, 2003
    Date of Patent: March 7, 2006
    Assignee: Canon Kabushiki Kaisha
    Inventors: Koichi Sentoku, Hideki Ina, Takehiko Suzuki, Takahiro Matsumoto, Satoru Oishi
  • Patent number: 6992767
    Abstract: An exposure apparatus performs AGA measurement by using a predetermined sample shot group formed on a wafer, and decides an alignment parameter. The exposure apparatus executes wafer alignment processing and exposure processing by using the alignment parameter. The exposure apparatus notifies a central processing unit (4) of AGA measurement results and the alignment parameter. An overlay inspection apparatus measures an actual exposure position on the exposed wafer, and notifies the central processing unit of the measurement result. The central processing unit (4) optimizes alignment processing on the basis of the AGA measurement results, alignment parameter, and actually measured exposure position.
    Type: Grant
    Filed: April 28, 2003
    Date of Patent: January 31, 2006
    Assignee: Canon Kabushiki Kaisha
    Inventors: Takahiro Matsumoto, Hideki Ina, Takehiko Suzuki, Koichi Sentoku, Satoru Oishi
  • Patent number: 6992780
    Abstract: A method of detecting relative position of a reflecting-type reticle and a substrate with the reticle having an alignment mark thereon. The method includes a holding step of holding the reticle on a reticle stage which has a reference mark, and a detection step of detecting position of the alignment mark on the reticle based on alignment light reflected from the alignment mark and detecting relative position between the reference mark on the reticle stage and the alignment mark.
    Type: Grant
    Filed: May 20, 2002
    Date of Patent: January 31, 2006
    Assignee: Canon Kabushiki Kaisha
    Inventors: Koichi Sentoku, Hideki Ina, Takehiko Suzuki, Satoru Oishi
  • Publication number: 20050264781
    Abstract: An exposure method for projecting a pattern formed on a reflection plate onto a substrate, via a projection optical system, using extreme ultraviolet light. The method includes a detection step of detecting a relative position between a second mark formed on a plate holding unit for holding the reflection plate and a third mark formed on the reflection plate. The detection step includes sub-steps of (i) detecting light reflected from the second mark with a detector, (ii) detecting light reflected from the third mark with the detector, and (iii) changing a relative position between the plate holding unit and the detector between sub-steps (i) and (ii).
    Type: Application
    Filed: August 2, 2005
    Publication date: December 1, 2005
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Takehiko Suzuki, Hideki Ina, Koichi Sentoku, Satoru Oishi
  • Publication number: 20050243296
    Abstract: A method of determining relative position between a reflective reticle and a substrate includes a detection step of detecting relative position between a transmissive reference mark on a reticle stage and a substrate alignment mark on a substrate stage through a reflective optical system which projects a pattern of the reflective reticle onto the substrate with extreme ultraviolet light, and a determination step of determining relative position between the reflective reticle and the substrate based on the detection result in the detection step.
    Type: Application
    Filed: June 30, 2005
    Publication date: November 3, 2005
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Koichi Sentoku, Hideki Ina, Takehiko Suzuki, Satoru Oishi
  • Publication number: 20050211918
    Abstract: An alignment apparatus for aligning a reflective reticle includes a light source for emitting alignment light, an optical alignment mark provided on the reticle, and a reference mark provided on a reticle stage that holds the reticle. A detecting unit detects the alignment light reflected from the alignment mark and the reference mark, and the reticle is aligned on the basis of the result of detection by the detection unit.
    Type: Application
    Filed: May 19, 2005
    Publication date: September 29, 2005
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Satoru Oishi, Hideki Ina, Takehiko Suzuki, Koichi Sentoku
  • Patent number: 6914666
    Abstract: An exposure method includes the steps of acquiring information of an alignment mark formed on an object to be exposed, by changing a value of a device parameter, the information being used for an alignment between a reticle and the object, the reticle forming a circuit pattern to be transferred to the object, and the value being able to be set in an exposure apparatus, determining the value of the device parameter of the exposure apparatus based on the information acquired in the acquiring step, and transferring the pattern onto the object using the exposure apparatus that sets the value of the device parameter, which has been determined.
    Type: Grant
    Filed: September 9, 2003
    Date of Patent: July 5, 2005
    Assignee: Canon Kabushiki Kaisha
    Inventor: Satoru Oishi