IC standard cell designed with embedded capacitors

Details IC standard cell designed with embedded capacitors IC standard cell designed with embedded capacitors

1996-06-10

1997-08-12

Crane, Sara W.

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

Gate arrays

With particular power supply distribution means

257333, 257334, 257532, 257203, 257300, 257208, H01L 2978, H01L 2702, H01L 2710

Patent

active

056568347

ABSTRACT:
Integrated circuits running with high frequencies are a potential source for RFI (Radio Frequency Interference). To reduce RFI, on-chip dedoupling capacitors are included in the design. To gain maximum advantage of these decoupling capacitors, they should be placed close to drivers and flip-flops. In a standard cell design approach for fabrication of the ICs, capacitors are embedded below the power supply lines. These capacitors are put in special cells, called cap-cells, which are placed by the place and route software on either side of each row of standard cells. Thin oxide capacitors are preferred because they offer the largest capacitance per area. In addition, first and second metal above the capacitor are increased to form thick oxide capacitors that give additional capacitance.

REFERENCES:
patent: 4258378 (1981-03-01), Wall
patent: 4361847 (1982-11-01), Harari
patent: 4467450 (1984-08-01), Kuo
patent: 4612629 (1986-09-01), Harari
patent: 4805071 (1989-02-01), Hutter et al.
patent: 4811078 (1989-03-01), Tigelaar et al.
patent: 4929989 (1990-05-01), Hayano
patent: 5264723 (1993-11-01), Strauss
patent: 5317180 (1994-05-01), Hutter et al.
patent: 5444288 (1995-08-01), Jacobs
"Speed and Complexity Fuel CMOS ASIC Growth", ASIC & EDA, Jan. 1993, beginning at p. 24.

Affiliated with

Also associated with

Rating

IC standard cell designed with embedded capacitors does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with IC standard cell designed with embedded capacitors, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and IC standard cell designed with embedded capacitors will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-162107