Abstract:
A method for manufacturing a semiconductor device includes forming a trench defining a plurality of active fins in a substrate, forming a sacrificial layer on the plurality of active fins, forming a sacrificial oxide layer, and removing the sacrificial oxide layer. The forming the sacrificial oxide layer includes heat-treating the sacrificial layer and surfaces of the plurality of active fins.
Abstract:
A method for fabricating a semiconductor device includes forming a stacked structure including at least one sacrificial layer and at least one semiconductor layer alternately stacked on a substrate, forming a dummy gate structure on the stacked structure, etching a recess in the stacked structure using the dummy gate structure as a mask, etching portions of the sacrificial layer exposed by the recess to form an etched sacrificial layer, forming a first spacer film on the etched sacrificial layer, forming a second spacer film on the first spacer film, the second spacer film including a material different from a material of the first spacer film, removing a first portion of the second spacer film, such that a second portion of the second spacer film remains, and forming a third spacer film on the second portion of the second spacer film.
Abstract:
A method of manufacturing a semiconductor device, the method including: preparing a semiconductor substrate including a mold layer and a support layer disposed on the mold layer; forming multiple holes that pass through the mold layer and the support layer; forming multiple bottom electrodes in the holes; exposing at least a portion of the bottom electrodes by removing at least a portion of the mold layer; removing a portion of the bottom electrodes from an exposed surface of the bottom electrodes; and sequentially forming a dielectric layer and a top electrode layer on the bottom electrodes.
Abstract:
A method of manufacturing a semiconductor device, the method including: preparing a semiconductor substrate including a mold layer and a support layer disposed on the mold layer; forming multiple holes that pass through the mold layer and the support layer; forming multiple bottom electrodes in the holes; exposing at least a portion of the bottom electrodes by removing at least a portion of the mold layer; removing a portion of the bottom electrodes from an exposed surface of the bottom electrodes; and sequentially forming a dielectric layer and a top electrode layer on the bottom electrodes.