Patents by Inventor Bunei Hamasaki

Bunei Hamasaki 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: 6499007
    Abstract: In editing of a job parameter in a semiconductor exposure apparatus controlled by the job parameter, which is a collection of parameters, a first parameter set independent of the model of the semiconductor exposure apparatus and a second parameter set dependent upon the model are edited and saved independently. This makes it possible to improve operability of parameter editing and management in the semiconductor exposure apparatus, ease of maintenance thereof and the ability to use job parameters among various models of apparatus.
    Type: Grant
    Filed: July 14, 1999
    Date of Patent: December 24, 2002
    Assignee: Canon Kabushiki Kaisha
    Inventors: Yoichi Kuroki, Bunei Hamasaki, Hiroki Suzukawa, Kenichi Kawai, Takahiro Senda
  • Patent number: 5365342
    Abstract: An alignment apparatus includes a first off-axis alignment optical system having a magnification, and a second off-axis alignment optical system having a magnification higher than that of the first off-axis alignment optical system, wherein the apparatus is operable in a global alignment mode using the second off-axis alignment optical system. In another aspect, an alignment apparatus which includes a first off-axis alignment optical system having a magnification, a second off-axis alignment optical system having a magnification higher than that of the first off-axis alignment optical system, and a TTL alignment optical system, wherein the alignment apparatus is operable in a global alignment mode using the second off-axis alignment optical system and is operable in another global alignment mode using the TTL optical alignment system.
    Type: Grant
    Filed: March 10, 1993
    Date of Patent: November 15, 1994
    Assignee: Canon Kabushiki Kaisha
    Inventors: Naoki Ayata, Mitsugu Yamamura, Bunei Hamasaki, Masao Kosugi, Kazuo Takahashi, Mitsuaki Seki
  • Patent number: 5197118
    Abstract: A system for controlling operation of a fine pattern printing apparatus. The system including a command storing portion in which a plurality of unit-operation instructing commands capable of instructing execution of corresponding unit operations which are components of the pattern printing operation of the apparatus and at least one sequential operation instructing command including a combination of at least a predetermined portion of the unit-operation instructing commands are stored. A command selecting portion for allowing selection of the commands stored in the command storing portion; a sequence setting portion cooperative with the command selecting portion so as to set, in the command storing portion, a desired sequential operation instructing command formed by a plurality of unit-operation instructing commands each of which is stored in the command storing portion.
    Type: Grant
    Filed: September 3, 1991
    Date of Patent: March 23, 1993
    Assignee: Canon Kabushiki Kaisha
    Inventors: Ryuichi Sato, Masanori Numata, Bunei Hamasaki, Naoki Ayata
  • Patent number: 5050111
    Abstract: An alignment apparatus includes a first off-axis alignment optical system having a magnification, and a second off-axis alignment optical system having a magnification higher than that of the first off-axis alignment optical system, wherein the apparatus is operable in a global alignment mode using the second off-axis alignment optical system. In another aspect, an alignment apparatus includes a first off-axis alignment optical system having a magnification, a second off-axis alignment optical system having a magnification higher than that of the first off-axis alignment optical system, and a TTL alignment optical system, wherein the alignment apparatus is operable in a global alignment mode using the second off-axis alignment optical system and is operable in another global alignment mode using the TTL optical alignment system.
    Type: Grant
    Filed: June 25, 1990
    Date of Patent: September 17, 1991
    Assignee: Canon Kabushiki Kaisha
    Inventors: Naoki Ayata, Mitsugu Yamamura, Bunei Hamasaki, Masao Kosugi, Kazuo Takahashi, Mitsuaki Seki
  • Patent number: 4937618
    Abstract: An alignment apparatus including a first off-axis alignment optical system having a magnification, and a second off-axis alignment optical system having a magnification higher than that of the first off-axis alignment optical system, wherein the apparatus is operable in a global alignment mode using the second off-axis alignment optical system. In another aspect, there is provided an alignment apparatus which includes a first off-axis alignment optical system having a magnification, a second off-axis alignment optical system having a magnification higher than that of the first off-axis alignment optical system, and a TTL alignment optical system, wherein the alignment apparatus is operable in a global alignment mode using the second off-axis alignment optical system and is operable in another global alignment mode using the TTL optical alignment system.
    Type: Grant
    Filed: June 20, 1989
    Date of Patent: June 26, 1990
    Assignee: Canon Kabushiki Kaisha
    Inventors: Naoki Ayata, Mitsugu Yamamura, Bunei Hamasaki, Masao Kosugi, Kazuo Takahashi, Mitsuaki Seki
  • Patent number: 4918320
    Abstract: A method of aligning a semiconductor wafer, usable in a step-and-repeat type exposure apparatus for projecting, in a reduced scale, images of a pattern formed on a reticle upon different shot areas on the semiconductor wafer in a predetermined sequence. According to this alignment method, the wafer is moved stepwise before the initiation of step-and-repeat exposures of the shot areas on the wafer and in accordance with a predetermined layout grid concerning the sites of the shot areas on the wafer. While moving the wafer stepwise in this manner, any positional deviation of each of some of the shot areas with respect to the layout grid is measured by use of a reduction projection lens system and, from the results of measurement, a corrected grid is prepared according to which grid the amount of stepwise movement of the wafer to be made for the step-and-repeat exposures thereof is determined.
    Type: Grant
    Filed: March 18, 1988
    Date of Patent: April 17, 1990
    Assignee: Canon Kabushiki Kaisha
    Inventors: Bunei Hamasaki, Hajime Igarashi, Akiya Nakai, Naoki Ayata
  • Patent number: 4881100
    Abstract: An alignment method usable in an apparatus for transferring images of a pattern of a mask onto different portions of a semiconductor wafer in a step-and-repeat manner, is disclosed. In this alignment method, positional deviation of at least one portion of the wafer with respect to the mask is measured and, on the basis of this measurement, the mask and the wafer are aligned with each other. After this,step-and-repeat exposure is executed. When the measurement of the positional deviation of the at least one portion of the wafer is unattainable, another portion of the wafer is selected and the deviation measurement is executed in respect to the selected portion. In another aspect of the invention, with regard to a rotational component of the deviation of the wafer, measurement and alignment are repeatedly executed until the rotational component becomes less than a predetermined value. Thereafter, the step-and-repeat exposure is initiated.
    Type: Grant
    Filed: November 16, 1988
    Date of Patent: November 14, 1989
    Assignee: Canon Kabushiki Kaisha
    Inventors: Akiya Nakai, Bunei Hamasaki, Shinji Utamura
  • Patent number: 4811059
    Abstract: An improved alignment method usable in a step-and-repeat type alignment and exposure apparatus for photolighographically transferring images of a pattern of a reticle onto different shot areas on a semiconductor wafer, for manufacture of semiconductor devices. According to this method, the alignment is executed with respect to an X direction, a Y direction and a rotational direction parallel to a plane containing the X and Y directions. With regard to the rotational direction, positional deviation of the wafer as a whole with respect to the reticle is measured and corrected prior to the initiation of the step-and-repeat photoprinting. With regard to the X and Y directions, detection and correction of any deviation are executed for each of the shot areas of the wafer. By this, high-accuracy and high-speed alignment is attainable for all the shot areas of the wafer.
    Type: Grant
    Filed: October 2, 1987
    Date of Patent: March 7, 1989
    Assignee: Canon Kabushiki Kaisha
    Inventors: Bunei Hamasaki, Shinji Utamura, Akiya Nakai
  • Patent number: 4801808
    Abstract: An alignment system in an alignment and exposure apparatus for exposing a wafer to a pattern of a mask, for use in the manufacture of semiconductor devices, the alignment system including an objective lens system for observing alignment marks formed on the mask and the wafer respectively, in order to bring the mask and the wafer into a predetermined alignment relation, prior to the exposure of the wafer. The objective lens system is capable of observing a mark that is formed on a member for holding an exposure optical system in order to allow alignment of the mask relative to the exposure optical system, whereby a reference position of the objective lens system is determined on the basis of the mark formed on the holding member and whereby accurate movement of the objective lens system during movement thereof to a position for observing the alignment marks on the mask and the wafer is assured.
    Type: Grant
    Filed: July 28, 1987
    Date of Patent: January 31, 1989
    Assignee: Canon Kabushiki Kaisha
    Inventor: Bunei Hamasaki
  • Patent number: 4677474
    Abstract: A probing apparatus for use in examination of a chip formed on a wafer, in co-operation with a sheet-like member having probe needles to be contacted to the chip on the wafer, the probing apparatus being arranged so that the positions of the probe needles of the sheet-like member, when it is held by a holder of the probing apparatus, are detected automatically and, in accordance with the detected positions, the sheet-like member is displaced automatically so as to be aligned with the probing apparatus. According to another aspect of the invention, the position of the wafer when it is at a location under the probe needles is detected automatically and, in accordance with the detected position, the wafer is displaced so as to be aligned with the sheet-like member which has been aligned automatically with the probing apparatus.
    Type: Grant
    Filed: June 27, 1985
    Date of Patent: June 30, 1987
    Assignee: Canon Kabushiki Kaisha
    Inventors: Mitsuya Sato, Bunei Hamasaki