Integrated circuit

An integrated circuit, comprising:

• at least one first cell with a first cell height, comprising a first active area and a second active area;
• at least one second cell with a second cell height different from the first cell height, wherein the at least one second cell comprises a first plurality of active areas and a second plurality of active areas;
• and
• at least one third cell with a third cell height different from the first cell height and the second cell height, wherein the at least one third cell comprises a third plurality of active areas and a fourth plurality of active areas;
• wherein the first active area, the first plurality of active areas, and the third plurality of active areas are disposed in a first layer, and the second active area, the second plurality of active areas, and the fourth plurality of active areas are disposed in a second layer above the first layer;
• wherein the at least one third cell is disposed between the at least one first cell and the at least one second cell, and abuts the at least one first cell and the at least one second cell.

A method, comprising:

• generating a layout of an integrated circuit, comprising:
• generating a first cell with a first cell height, wherein the first cell comprises a first active area and a second active area overlapping the first active area;
• generating a second cell with a second cell height different from the first cell height, wherein the second cell comprises a first plurality of active areas and a second plurality of active areas overlapping the first plurality of active areas;
• and
• arranging the first cell abutting the second cell, wherein the first active area and one of the first plurality of active areas extend in a first row;
• and
• manufacturing at least one element of the integrated circuit based on the layout.