Abstract:
A method of forming a semiconductor device may include forming a contact mold layer on a substrate; forming an interconnection mold layer on the contact mold layer that includes a material having an etching selectivity with respect to the contact mold layer; forming grooves in the interconnection mold layer that extend in a first direction and expose the contact mold layer; forming holes in the contact mold layer connected to the grooves by etching a part of the contact mold layer exposed by the groove; and forming contact portions in the holes and interconnections in the groove. A diffusion coefficient of mobile atoms in the contact mold layer is greater than a diffusion coefficient of mobile atoms in a nitride.
Abstract:
A pattern structure in a semiconductor device includes an extending line and a pad connected with an end portion of the extending line. The pad may have a width that is larger than a width of the extending line. The pad includes a protruding portion extending from a lateral portion of the pad. The pattern structure may be formed by simplified processes and may be employed in various semiconductor devices requiring minute patterns and pads.
Abstract:
A semiconductor device includes a semiconductor substrate including a cell region and a core region adjacent to the cell region, active regions in the cell region and the core region, an interlayer insulating layer covering the active regions, upper cell contacts penetrating the interlayer insulating layer in the cell region, the upper cell contacts being adjacent to each other along a first direction and being electrically connected to the active regions, and core contacts penetrating the interlayer insulating layer in the active regions of the core region, the core contacts being adjacent to each other along the first direction and including upper connection core contacts electrically connected to the active regions, and dummy contacts adjacent to the upper connection core contacts, the dummy contacts being insulated from the active regions.