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US 5,490,103 AGranted
Signal terminal structure for macro cells and an associated connection method
AssigneeKabushiki Kaisha Toshiba
InventorsMasanori Haraguchi, Yoshinori Okada, Masato Ito
Life of this patent
Estimating the term…
Abstract
A semicustom semiconductor IC device is structured by connecting together various types of initially prepared macro cells in a given combination in accordance with a circuit configuration, and requisite characteristics, requested by a user. A plurality of signal terminals are provided on some sides of at least one of the macro cells to enable a signal corresponding to the same group of signal terminals to be input or output. Of those signal terminals to be connected, associated signal terminals of the shortest connection distance are selected so that they are connected together by a corresponding shortest connection wire.
Claims25
A semiconductor IC device comprising:
- a plurality of macro cells;
- a plurality of signal terminals electrically connected to a common point, provided on one side of one of the macro cells;
- and
- wire means connecting a selected one of the signal terminals on the one macro cell to a corresponding signal terminal on another of the macro cells.
1 more element
A semiconductor IC device comprising:
- a plurality of macro cells;
- a first group of signal terminals electrically connected to a first common point, provided on one side of one of the macro cells;
- a second group of signal terminals electrically connected to the first common point, provided on a side adjacent to said one side of the one macro cell;
- and
- wire means connecting at least one of the first group and second group of signal terminals on the one macro cell to a corresponding signal terminal on another of the macro cells.
2 more elements
A semiconductor IC device comprising:
- a plurality of macro cells;
- a first group of signal terminals electrically connected to a first common point, provided on one side of one of the macro cells;
- a second group of signal terminals electrically connected to the first common point, provided inside of the one macro cell;
- and
- wire means connecting a selected one of the first group and second group of signal terminals on the one macro cell to a corresponding signal terminal on another of the macro cells.
2 more elements
A semiconductor IC device comprising:
- a plurality of macro cells;
- a plurality of signal terminals in a same group electrically connected to a common point, provided inside of one of the macro cells;
- and
- wire means connecting a selected one or ones of the macro cells to a corresponding signal terminal or terminals.
1 more element
A semiconductor IC device comprising:
- a plurality of macro cells;
- a plurality of signal terminals for a same signal, provided on one side of one of the macro cells;
- and
- wire means connecting a selected one of the signal terminals on the one macro cell to a corresponding signal terminal on another of the macro cells;
- wherein at least one of the signal terminals on the one macro cell is located on a corresponding horizontal connection track and at least one of signal terminals on said other macro cell is located on a corresponding vertical connection track in a 90.degree. or 270.degree., rotated position.
2 more elements
A semiconductor IC device comprising:
- a plurality of macro cells;
- a first group of signal terminals for a first signal provided on one side of one of the macro cells;
- a second group of signal terminals for said first signal provided on a side adjacent to said one side of the macro cell;
- wire means connecting at least one of the first group and second group of signal terminals on the one macro cell to a corresponding signal terminal on another of the macro cells;
- a third group of signal terminals for said first signal, provided on a same side as the first group of signal terminals;
- and
- a fourth group of signal terminals for said first signal, provided on a same side as the second group of signal terminals;
- and
- wherein one of the first group and third group of signal terminals is located on a horizontal connection track and the other signal terminal is located on a vertical connection track in a clockwise 90.degree. or 270.degree., rotated position of said other macro cell, and
- wherein one of the second group and fourth group of signal terminals is located on the vertical connection track and the other signal terminal is located on the horizontal connection track on said other macro cell in a clockwise 90.degree. or 270.degree., rotated position.
7 more elements
A semiconductor IC device comprising:
- a plurality of macro cells;
- a first group of signal terminals for a first signal, provided on one side of one of the macro cells;
- a second group of signal terminals for a first signal, provided inside of the one macro cell;
- wire means connecting a selected one of the first group and second group of signal terminals on the one macro cell to a corresponding signal terminal on another of the macro cells;
- a third group of signal terminals for a second signal different from said first signal, provided on a same side as the first group of signal terminals;
- and
- a fourth group of signal terminals for said first signal, provided within the one macro cell;
- wherein one of the first group and third group of signal terminals is located on the horizontal connection track and the other signal terminal is located on a vertical connection track in a clockwise 90.degree. or 270.degree., rotated position of the other macro cell, and
- wherein one of the second group and fourth group of signal terminals is located on the vertical connection track and the other signal is located on a horizontal connection track in a clockwise 90.degree. or 270.degree., rotated position of the other macro cell.
6 more elements
A semiconductor IC device comprising:
- a plurality of macro cells;
- a plurality of signal terminals in a same group provided inside of one of the macro cells;
- and
- wire means connecting a selected one or ones of the macro cells to a corresponding signal terminal or terminals;
- wherein at least one of the plurality of signal terminals is located on a corresponding horizontal connection track and at least one of the other signal terminals is located on a vertical connection track in a clockwise 90.degree. or 270.degree., rotated position of the other macro cell.
2 more elements
A semiconductor IC device comprising:
- a plurality of macro cells;
- a plurality of signal terminals electrically connected to a common point, provided on one side of the macro cells;
- and
- a conductor connecting a selected one of the signal terminals on the one macro cell to a corresponding signal terminal on another of the macro cells.
1 more element
A semiconductor IC device comprising:
- a plurality of macro cells;
- a first group of signal terminals electrically connected to a first common point, provided on one side of one of the macro cells;
- a second group of signal terminals electrically connected to the first common point, provided inside of the one macro cell;
- and
- a conductor connecting a selected one of the first group and second group of signal terminals on the one macro cell to a corresponding signal terminal on another of the macro cells.
2 more elements
Dependencies are inferred from the claim text.