19009795. METHOD OF MANUFACTURING SEMICONDUCTOR DEVICE (Samsung Electronics Co., Ltd.)
METHOD OF MANUFACTURING SEMICONDUCTOR DEVICE
Organization Name
Inventor(s)
Shigenobu Maeda of Seongnam-si KR
METHOD OF MANUFACTURING SEMICONDUCTOR DEVICE
This abstract first appeared for US patent application 19009795 titled 'METHOD OF MANUFACTURING SEMICONDUCTOR DEVICE
Original Abstract Submitted
A method of manufacturing a semiconductor device includes forming an active fin protruding from a substrate and extending in a first direction; forming sacrificial gate patterns intersecting the active fin and extend in a second direction; forming recess regions by etching the active fin on at least one side of each of the sacrificial gate patterns; forming source/drain regions on the recess regions; removing the sacrificial gate patterns to form openings; and forming a gate dielectric layer and a gate electrode such that gate structures are formed to cover the active fin in the openings. The source/drain regions are formed by an epitaxial growth process and an in-situ doping process of doping first conductivity-type impurity elements. In at least one of the source/drain regions, after the in-situ doping process is performed, counter-doping is performed using second conductivity-type impurity elements different from the first conductivity-type impurity elements to decrease carrier concentration.