摘要:
A method of fabricating a semiconductor device can be provided by etching sidewalls of a preliminary trench in a substrate that are between immediately adjacent gate electrode structures, to recess the sidewalls further beneath the gate electrode structures to provide recessed sidewalls. Then, the recessed sidewalls and a bottom of the preliminary trench can be etched using crystallographic anisotropic etching to form a hexagonally shaped trench in the substrate.
摘要:
Provided are a semiconductor device, which can facilitate a salicide process and can prevent a gate from being damaged due to misalign, and a method of manufacturing of the semiconductor device. The method includes forming a first insulation layer pattern on a substrate having a gate pattern and a source/drain region formed at both sides of the gate pattern, the first insulation layer pattern having an exposed portion of the source/drain region, forming a silicide layer on the exposed source/drain region, forming a second insulation layer on the entire surface of the substrate to cover the first insulation layer pattern and the silicide layer, and forming a contact hole in the second insulation layer to expose the silicide layer.
摘要:
In a method for fabricating a semiconductor device, a substrate is provided including an interlayer dielectric layer and first and second hard mask patterns sequentially stacked thereon. A first trench is provided in the interlayer dielectric layer through the second hard mask pattern and the first hard mask pattern. A filler material is provided on the interlayer dielectric layer and the second hard mask pattern to fill the first trench. An upper portion of the second hard mask pattern is exposed by partially removing the filler material. The second hard mask pattern is removed, and remaining filler material is removed from the first trench. A wiring is formed by filling the first trench with a conductive material.
摘要:
In a method for fabricating a semiconductor device, a substrate is provided including an interlayer dielectric layer and first and second hard mask patterns sequentially stacked thereon. A first trench is provided in the interlayer dielectric layer through the second hard mask pattern and the first hard mask pattern. A filler material is provided on the interlayer dielectric layer and the second hard mask pattern to fill the first trench. An upper portion of the second hard mask pattern is exposed by partially removing the filler material. The second hard mask pattern is removed, and remaining filler material is removed from the first trench. A wiring is formed by filling the first trench with a conductive material.
摘要:
A method of forming a pattern in a semiconductor device includes forming an etching object layer on a substrate, the etching object layer is an oxide that is substantially free of impurities. A mask is formed on the etching object layer, the mask is an oxide that includes impurities. The etching object layer is patterned using the mask as an etching mask and then the mask is removed. The mask is removed using an etchant having an etching selectivity to an oxide that is substantially free of impurities and an oxide that includes impurities during removing of the mask to limit damage to the patterned etching object layer during removal of the mask.