Circuit layouts with variable circuit cell heights in the same circuit row

A semiconductor structure comprising:

• a first circuit row, the first circuit row comprising a first circuit cell having a first cell height greater than a first row height of the first circuit row;
• and
• a second circuit row adjacent the first circuit row, the second circuit row comprising a second circuit cell having a second cell height greater than a second row height of the second circuit row;
• wherein a first portion of the first circuit cell extends into the second circuit row, a second portion of the second circuit cell extends into the first circuit row, and the first portion of the first circuit cell is offset from the second portion of the second circuit cell;
• and
• wherein a horizontal center of the first circuit cell is aligned with a first horizontal center line of the first circuit row and a horizontal center of the second circuit cell is aligned with a second horizontal center line of the second circuit row.

A semiconductor structure comprising:

• a first circuit row, the first circuit row having a first set of two or more circuit cells having different cell heights, wherein horizontal centers of the first set of two or more circuit cells are aligned with a first horizontal center line of the first circuit row;
• and
• a second circuit row adjacent the first circuit row, the second circuit row having a second set of two or more circuit cells having different cell heights, wherein horizontal centers of the second set of two or more circuit cells are aligned with a second horizontal center line of the second circuit row;
• wherein the first set of two or more circuit cells comprises a first circuit cell having a first cell height greater than a first row height of the first circuit row and a second circuit cell having a second cell height less than the first row height of the first circuit row.