Patent ID: 7153733
Filing Date: 2006-12-26
Classification: H01L

Abstract:
1. A method of fabricating a fin field effect transistor (FinFET), the method comprising: forming a hard mask pattern having a lower hard mask pattern and an upper hard mask pattern on a semiconductor substrate; etching the semiconductor substrate, using the hard mask pattern as an etching mask, to form a trench therein, the trench defining an active region; recessing sidewalls of the lower hard mask pattern; forming an isolation layer that fills the trench and covers sidewalls of the recessed lower hard mask pattern and exposing an upper surface of the recessed lower hard mask pattern; etching a predetermined region of the active region, using the recessed lower hard mask pattern as an etching mask, to form a fin; removing the lower hard mask pattern to expose an upper surface of the fin; and forming a gate electrode that covers the exposed upper surface and sidewalls of the fin, wherein the gate electrode is insulated from the fin.