Semiconductor integrated circuit device and apparatus for producing the layout thereof

The present invention provides a semiconductor integrated circuit device, a layout design method and apparatus thereof which enable to select an arbitrary number of grids in primitive cells and minimize the layout area. Each primitive cell is constituted by a core portion having a circuit for realiz...

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Bibliographic Details
Main Authors NAKATSU, ISAO, KOZAI, ATSKUO
Format Patent
LanguageEnglish
French
German
Published 20.12.2000
Edition7
Subjects
BASIC ELECTRIC ELEMENTS
ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
ELECTRICITY
SEMICONDUCTOR DEVICES
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Summary:The present invention provides a semiconductor integrated circuit device, a layout design method and apparatus thereof which enable to select an arbitrary number of grids in primitive cells and minimize the layout area. Each primitive cell is constituted by a core portion having a circuit for realizing a function inherent to the primitive cell and a power supply wiring portion for electrical connection between the core portion and a power supply wiring and electrical connection between cores of different primitive cells. A primitive cell small group is prepared from a plurality of primitive cells having an identical core portion and different numbers of allocatable signal lines in the power supply wiring portion, so that a primitive cell having an appropriate number of signal lines as the power supply wiring portion is selected for layout.
Bibliography:Application Number: EP20000112706