Semiconductor device, method of designing a layout of a semiconductor device, and method of manufacturing a semiconductor device

A method of manufacturing a semiconductor device, the method comprising:

• forming cells in a first direction such that first conductive lines in the respective cells are collinear with each other, the first conductive lines being spaced apart from each other in a second direction substantially perpendicular to the first direction in each of the cells, and each of the first conductive lines extending in the first direction;
• forming insulation blocks at a boundary area between the cells or in areas of the cells adjacent to the boundary area, such that at least one of the insulation blocks is between two collinear first conductive lines of adjacent cells, the at least one of the insulation blocks partially overlapping each of the first conductive lines in the first direction;
• forming second conductive lines spaced apart in the first direction in each of the cells, each of the second conductive lines extending in the second direction;
• and
• forming first vias each commonly overlapping one of the first conductive lines and one of the second conductive lines in a plan view.

A method of manufacturing a semiconductor device, the method comprising:

• forming first conductive lines spaced apart from each other in a second direction on a substrate including cell regions, each of the first conductive lines extending in a first direction crossing the second direction;
• forming insulation blocks at a boundary area between the cell regions in the first direction or areas of the cell regions adjacent the boundary area, portions of the first conductive lines being replaced by the insulating blocks, respectively;
• and
• forming second conductive lines in the first direction, each of the second conductive lines extending in the second direction on the first conductive lines in each of the cell regions and being electrically connected to each of the first conductive lines through underlying first vias.