Semiconductor device having fin-type field effect transistor and method of manufacturing the same

Abstract

A method of manufacturing a semiconductor device includes forming a fin structure on a substrate. A sacrificial layer pattern is formed on the fin structure. An active layer pattern is formed on the sacrificial layer pattern. A dummy gate pattern is formed on the active layer pattern. A spacer is formed on the dummy gate pattern. A source/drain structure is formed on the active layer pattern using an epitaxial growth process. An interlayer dielectric layer is formed on the dummy gate pattern and the active layer pattern. The interlayer dielectric layer is planarized to expose the dummy gate pattern. The dummy gate pattern is removed to expose the active layer pattern and the sacrificial layer pattern. The exposed sacrificial layer pattern is removed to form a through-hole between the exposed active layer pattern and the fin structure, the second portion of the sacrificial layer pattern is not removed.