Standard cell having a capacitor and a power supply capacitor fo

Details Standard cell having a capacitor and a power supply capacitor fo Standard cell having a capacitor and a power supply capacitor fo

1996-04-15

1997-05-20

Jackson, Jerome

Active solid-state devices (e.g., transistors, solid-state diode

Integrated circuit structure with electrically isolated...

Passive components in ics

257401, H01L 2900

Patent

active

056314922

ABSTRACT:
An integrated circuit (10), which is designed using standard cells (20, 22, 24, 26, 28, 30, 32, 34, 35, 36, 37, 28, 40, 42, 44, 46, 48, 50, 52), usually has one or more empty spaces (54) wherein no circuitry is formed. These empty spaces may be used to form capacitor standard cells which have capacitors (see FIGS. 3 and 4) to both ground and power supply lines within the integrated circuit. These capacitors are used to reduce noise in the power and supply lines in a manner more useful/efficient than known methods. The capacitor standard cell taught herein is more useful/efficient due to the fact that the capacitance provided by these standard cells is distributed over the entire integrated circuit in small portions (i.e., standard cells are placed all over the integrated circuit (10)), and is placed close to the logic which is switching. It is the switching logic which is the root of a large portion of internal integrated circuit noise.

REFERENCES:
patent: 4626881 (1986-12-01), Kishi et al.
patent: 5264723 (1993-11-01), Strauss

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