22.
    发明专利
    未知

    公开(公告)号:DE69126719D1

    公开(公告)日:1997-08-14

    申请号:DE69126719

    申请日:1991-03-08

    Applicant: CANON KK

    Abstract: An exposure method for manufacture of semiconductor devices, includes moving a shutter having an edge so that the edge is related to a predetermined exposure region; projecting an exposure beam to the edge of the shutter and to at least a portion of the exposure region; determining a position of a shadow of the edge of the shutter formed by the exposure beam with respect to a predetermined coordinate system related to movement of a movable chuck; adjusting the shutter in accordance with the determination; placing a substrate on the chuck; moving the chuck so that the substrate is related to the exposure region; and controlling the exposure of the substrate with the exposure beam through the shutter.

    24.
    发明专利
    未知

    公开(公告)号:DE69123610T2

    公开(公告)日:1997-04-24

    申请号:DE69123610

    申请日:1991-01-31

    Applicant: CANON KK

    Abstract: A method of manufacture of semiconductor devices, includes exposing different portions of a semiconductor substrate (2) with a first exposure apparatus (100) having a first exposure range; placing and aligning the semiconductor substrate with respect to a second exposure range of a second exposure apparatus (200) which range is larger than the first exposure range of the first exposure apparatus; detecting an alignment error of each of the portions of the semiconductor substrate as covered by the second exposure range of the second exposure apparatus; calculating an overall alignment error of those portions of the semiconductor substrate with respect to the whole second exposure range of the second exposure apparatus, on the basis of the detected alignment errors; and controlling the exposure operation of the second exposure apparatus on the basis of the calculated overall alignment error.

    26.
    发明专利
    未知

    公开(公告)号:DE68923638D1

    公开(公告)日:1995-09-07

    申请号:DE68923638

    申请日:1989-03-28

    Applicant: CANON KK

    Abstract: A method and apparatus for inspecting and repairing a mask usable in manufacture of semiconductor microcircuits, by using an electron beam is disclosed. The inspection and repair of a mask pattern are made in a single apparatus, by using a controlled current of electron beam. For inspection, the surface of a mask (4) having a mask pattern (3) and a radiation-sensitive layer (5), covering it, is scanned with an electron beam (6) and, by detecting (7) secondary electrons or reflected electrons caused at that time, the state of the pattern is inspected. If any defect is detected (12-15), the portion of the radiation-sensitive layer on the detected defect is irradiated with an electron beam of greater magnitude than that for the inspection and, thereafter, the exposed portion of the radiation-sensitive layer is removed. Then, etching or plating is made to the thus uncovered portion, whereby repair of the mask pattern is made.

    29.
    发明专利
    未知

    公开(公告)号:DE68922798D1

    公开(公告)日:1995-06-29

    申请号:DE68922798

    申请日:1989-07-31

    Applicant: CANON KK

    Abstract: A method of supporting or mounting a precision instrument for supporting a mask and a wafer in a vacuum container. It is particularly applicable to a SOR-X ray exposure apparatus wherein the mask and the wafer are disposed in a desired level of the reduced pressure, and exposure energy such as X-rays contained in synchrotron radiation is projected onto the wafer through the mask to print the pattern of the mask onto the wafer. In x-y-z coordinates with the x direction being vertical, the precision instrument in hung at at least two points which are spaced in the x direction, to the inside wall of the vacuum container. At one of the supporting points, the precision instrument is given latitude of x, y and z direction movement, and at the other supporting point, the precision instrument is fixed or is given a latitude only in the x direction. By this, when the vacuum container deforms by the difference between the internal and external pressures, the precision instrument can be supported correctly.

    30.
    发明专利
    未知

    公开(公告)号:DE68929187T2

    公开(公告)日:2000-09-28

    申请号:DE68929187

    申请日:1989-08-31

    Applicant: CANON KK

    Abstract: An exposure apparatus usable with synchrotron radiation source (201) wherein the synchrotron radiation (202,204) is generated by electron injection (210) into a ring (201). The exposure apparatus is to transfer a semiconductor element pattern of a mask (208) onto a semiconductor wafer (209) by the synchrotron radiation. The apparatus includes a shutter (207) for controlling the exposure of the wafer (209). The shutter (207) controls the exposure with the illuminance distribution on the wafer surface taken into account. The illuminance distribution is determined (206,211,216) in response to the electron injection (210), and thereafter, the illuminance distribution is corrected (216,215,213,207) in a predetermined manner. By this, the illuminance distribution data for controlling (213,215) the shutter (207) always correspond to the actual illuminance distribution. The entire shot areas of the semiconductor wafer (209) are exposed with high precision.

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