SEMICONDUCTOR DEVICE AND METHOD OF MANUFACTURING THE SAME
First Claim
Patent Images
1. A method of manufacturing a semiconductor device, comprising:
- forming a fin extending in a first direction;
forming a dummy layer including a plurality of semiconductor layers disposed on the fin, wherein each of the plurality of semiconductor layers has different impurity concentrations from each other; and
etching the dummy layer to form a dummy gate electrode.
1 Assignment
0 Petitions
Accused Products
Abstract
A method of manufacturing a semiconductor device includes forming a fin extending in a first direction. A dummy layer is formed including a plurality of semiconductor layers disposed on the fin. Each of the plurality of semiconductor layers have different impurity concentrations from each other. The dummy layer is etched to form a dummy gate electrode.
-
Citations
20 Claims
-
1. A method of manufacturing a semiconductor device, comprising:
-
forming a fin extending in a first direction; forming a dummy layer including a plurality of semiconductor layers disposed on the fin, wherein each of the plurality of semiconductor layers has different impurity concentrations from each other; and etching the dummy layer to form a dummy gate electrode. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
-
-
12. A method of manufacturing a semiconductor device, comprising:
-
forming a fin extending in a first direction; forming a field insulating film formed along a relatively longer side of the fin and exposing the upper portion of the fin; forming a dummy layer on the exposed upper portion fin through a dummy layer deposition process; etching the dummy layer to form a dummy gate electrode including a concave line formed between the dummy layer and the fin; forming a spacer on the side wall of the dummy gate electrode to fill the concave line; and replacing the dummy gate electrode with a gate electrode. - View Dependent Claims (13, 14, 15)
-
-
16. A method of manufacturing a semiconductor device, comprising:
-
forming a fin on a substrate; forming a field insulating film formed on first and second side surfaces of the fin; forming a dummy gate insulating film conformally covering upper surfaces of the field insulating film, the first and second side surfaces of the fin, and an upper surface of the fin; performing a dummy layer deposition process and an impurity injection process to form a dummy layer including a plurality of semiconductor layers disposed on the fin, wherein each of the plurality of semiconductor layers has different impurity concentrations from each other; and etching the dummy layer to form a dummy gate electrode. - View Dependent Claims (17, 18, 19, 20)
-
Specification