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    2.
    发明专利
    未知

    公开(公告)号：FR2316835A1

    公开(公告)日：1977-01-28

    申请号：FR7616132

    申请日：1976-05-21

    Applicant: IBM

    Inventor： BELLESON JAMES G ,  CLARK KENDALL

    IPC: G01D5/26 ,  G01B11/00 ,  G01B11/02 ,  G01B11/24 ,  G01B11/245 ,  G01R31/265 ,  G01R31/308 ,  G01R31/309 ,  H01L21/66 ,  H05K13/08

    Abstract: This patent discloses an improved inspection tool for rapidly inspecting miniature electronic conductor patterns, circuits and the like. The tool focuses a laser beam to a small laser spot that raster scans a large conductor pattern area on the workpiece being inspected. Reflected laser light from the workpiece impinges upon a light detector that generates electrical signals according to the presence or absence of conductor pattern material on the workpiece at the momentary X and Y coordinate of the scanning laser spot. The light detector signals are compared with a previously encoded data image of the correct circuit pattern for the X and Y coordinates of the scanning laser spot. When the signals and the data agree at all X and Y coordinate points the workpiece is accepted. If the signals and the data do not agree at one or more X and Y coordinate points a defect in the circuit pattern is indicated. A defect may indicate out-of-tolerance dimensions, possible electrical short circuits, and/or open circuits. The extent of a defect may be determined by adjacent X and Y coordinate points and suitable computer programming, while workpieces having extended or out-of-tolerance defects are rejected. The improved disclosed inspection tool includes apparatus for automatically compensating for variations in the workpieces, and to effect registration for the scanning laser spot.

    RASTER PRINTER WITH SUFFICIENT PRINTING FLEXIBILITY
    4.
    发明专利
    RASTER PRINTER WITH SUFFICIENT PRINTING FLEXIBILITY 未知

    公开(公告)号：CA1100644A

    公开(公告)日：1981-05-05

    申请号：CA300169

    申请日：1978-03-31

    Applicant: IBM

    Inventor： BELLESON JAMES G ,  DISBROW JOHN R ,  EISELEN EVERETT T

    IPC: G06F3/12 ,  G06K15/02 ,  G06K15/10 ,  G06K15/12 ,  G06K15/22

    Abstract: RASTER PRINTER WITH SUFFICIENT PRINTING FLEXIBILITY A raster printer is provided with sufficient flexibility so that text data and image data of any size and orientation can be placed at any position on a page. Input data comprises a succession of coded character data long with control data which specifies information concerning font selection and the placement of the characters on the page. Control means is provided to process the input data, one character at a time, and generate for each of the characters, data relating to the position of the character on the page, the size of the character and the address in storage of the graphic pattern for the character. The data is utilized by pattern move control means to access the graphic pattern in the order the characters are to be printed and move the graphic data to a strip buffer means. Data is read out of the strip buffer to energize imaging apparatus to print a page corresponding to the graphic pattern of the input character data. Accumulator means are provided as a temporary storage for parts of the graphic pattern data and this data is logically ORed with later data so that a page of unlimited complexity can be printed.

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