Integrated circuit including standard cell

Patent metadata

Field	Value
Publication number	US-10672702-B2
Application number	US-201916433092-A
Country	US
Kind code	B2
Filing date	Jun 6, 2019
Priority date	Feb 6, 2017
Publication date	Jun 2, 2020
Grant date	Jun 2, 2020

Abstract

A standard cell of an IC includes a cell area including a transistor configured to determine a function of the standard cell; a first dummy area and a second dummy area respectively adjacent to two sides of the cell area in a first direction; and an active area extending in the first direction across the cell area, the first dummy area, and the second dummy area. The active area includes a first active area and a second active area spaced apart from each other in a second direction perpendicular to the first direction and extend parallel to each other in the first direction. At least one of the first active area and the second active area provided in the first dummy area is biased, and at least one of the first active area and the second active area provided in the second dummy area is biased.

First claim

What is claimed is:

1. An integrated circuit comprising:
a plurality of standard cells, wherein at least one standard cell of the plurality of standard cells comprises:
a cell area comprising at least one transistor configured to determine a function of the at least one standard cell;
a first dummy area and a second dummy area respectively adjacent to two comprising sides of the cell area in a first direction;
an active area extending in the first direction across the cell area, the first dummy area, and the second dummy area; and
a first boundary area and a second boundary area that are adjacent to the first dummy area and the second dummy area, respectively, and disposed farther away from the cell area than the first dummy area and the second dummy area, respectively,

wherein the active area comprises a first active area and a second active area, which are spaced apart from each other in a second direction perpendicular to the first direction and extend parallel to each other in the first direction,
wherein at least one from among the first active area and the second active area provided in the first dummy area is biased, and
wherein at least one from among the first active area and the second active area provided in the second dummy area is biased.

2. The integrated circuit of claim 1 , wherein a first voltage having a first level is applied to the first active area provided in the first dummy area, and a second voltage having a second level lower than the first level is applied to the second active area provided in the first dummy area.

3. The integrated circuit of claim 2 , wherein the first dummy area comprises a gate line to which at least one from among the first voltage having the first level and the second voltage having the second level is applied.

4. The integrated circuit of claim 1 , wherein the second dummy area comprises a gate line to which at least one from among a first voltage having a first level and a second voltage having a second level lower than the first level is applied.

5. The integrated circuit of claim 4 , wherein the first active area provided in the second dummy area is electrically connected to an output pin of the at least one standard cell, and the second voltage having the second level is applied to the second active area provided in the second dummy area.

6. The integrated circuit of claim 4 , wherein the first voltage having the first level is applied to the first active area provided in the second dummy area, and the second active area provided in the second dummy area is electrically connected to an output pin of the at least one standard cell.

7. The integrated circuit of claim 4 , wherein at least one from among the first active area and the second active area provided in the second dummy area has a same electric potential as the gate line of the second dummy area.

8. The integrated circuit of claim 1 , wherein
the active area is separated from the first boundary area and the second boundary area.

9. The integrated circuit of claim 1 , wherein a first voltage applied to the first active area and the second active area provided in the first dummy area and the second dummy area, respectively, varies according to a second voltage applied to regions of the first active area and the second active area of the cell area, the regions being adjacent to the first dummy area and the second dummy area, respectively.

10. The integrated circuit of claim 1 , wherein one area from among the first boundary area and the second boundary area comprises a double diffusion break, and another area from among the first boundary area and the second boundary area comprises a single diffusion break.

11. An integrated circuit comprising:
a plurality of standard cells, wherein at least one standard cell of the plurality of standard cells comprises:
a first power rail and a second power rail, each of the first power rail and the second power rail extending in a first direction to supply power to the at least one standard cell, the first power rail and the second power rail being spaced apart from each other in a second direction perpendicular to the first direction;
a cell area including at least one transistor configured to determine a function of the at least one standard cell;
a dummy area adjacent to two opposing sides of the cell area in the first direction;
an active area extending in the first direction across the cell area and the dummy area; and
a boundary area adjacent to the dummy area and disposed farther away from the cell area than the dummy area,

wherein the active area comprises a first active area and a second active area, which are spaced apart from each other in the second direction and extend parallel to each other in the first direction, and
wherein the first active area provided in the dummy area is electrically connected to the first power rail, and the second active area provided in the dummy area is electrically connected to the second power rail.

12. The integrated circuit of claim 11 , wherein the dummy area comprises a gate line electrically connected to one from among the first power rail and the second power rail.

13. The integrated circuit of claim 11 , wherein the active area is separated from the boundary area.

14. The integrated circuit of claim 11 , wherein the boundary area comprises one from among a double diffusion break and a single diffusion break.

Assignees

• Samsung Electronics Co Ltd

Inventors

• Kim In-Gyum
• Kim Ha-Young
• Song Tae-Joong
• Jung Jong-Hoon
• Yang Gi-Young
• Lim Jin-Young

Classifications

• H01L2027/11831

  Electricity · mapped topic

• H01L2924/14

  Electricity · mapped topic

• H01L29/788

  Electricity · mapped topic

• H01L23/49838

  Electricity · mapped topic

• H01L27/0207

  Electricity · mapped topic