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    HIGH SPEED MACHINE FOR THE PHYSICAL DESIGN OF VERY LARGE SCALE INTEGRATED CIRCUITS
    12.
    发明专利
    HIGH SPEED MACHINE FOR THE PHYSICAL DESIGN OF VERY LARGE SCALE INTEGRATED CIRCUITS 未知

    公开(公告)号：CA1166759A

    公开(公告)日：1984-05-01

    申请号：CA400638

    申请日：1982-04-07

    Applicant: IBM

    Inventor： HONG SE J ,  NAIR RAVINDRA K ,  SHAPIRO EUGENE

    IPC: G06F15/16 ,  G06F15/177 ,  G06F15/80 ,  G06F17/50 ,  H01L21/3205 ,  H01L21/82 ,  H01L21/822 ,  H01L23/52 ,  H01L27/04 ,  H01L27/118 ,  H01L21/70 ,  H01L27/02

    Abstract: YO979-023 A HIGH SPEED MACHINE FOR THE PHYSICAL DESIGN OF VERY LARGE SCALE INTEGRATED CIRUCITS Method and apparatus for the physical design of very large scale integrated (VLSI) circuits, and in particular the interconnection and wire routing between circuits formed on a chip. Apparatus is set forth for determining the wire routings in a VLSI circuit comprised of cells, wherein the cells are composed of electronic devices functioning as logic gates. Groups of cells may be interconnected to function as flip flops, shift registers and the like. A supervisory controller communicates with n, where n is an integer, identical multi-port processors, with one processor dedicated to each cell, for determining the wire routings between the respective cells. Each processor communicates simultaneously with its four adjacent neighbor processors to determine channel routings from one point to the next in the array of cells, wherein a channel routing includes vertical and horizontal paths. Following determination of global channel routings, exact vertical and horizontal tracks for the wire paths are assigned. The array of processors may be utilized to wire a much larger array of cells.

    20.
    发明专利
    未知

    公开(公告)号：FR2305800A1

    公开(公告)日：1976-10-22

    申请号：FR7603002

    申请日：1976-01-29

    Applicant: IBM

    Inventor： FAN GEORGE J ,  SHAPIRO EUGENE

    IPC: G03G19/00 ,  B41J2/42 ,  B41J3/50 ,  G03G5/16 ,  G06K1/18 ,  G06K7/08 ,  G06K15/10 ,  G06K15/14 ,  H04N1/27

    Abstract: A scanner transfers information in the form of magnetic characters to a soft magnetic film, and subsequently transfers the information to a storage medium, such as disc, tape, or the like. Use of amorphous and other bubble material is suggested. A bias field is coupled through the magnetic characters to the material in which bubbles are generated and transported.

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