Abstract:
The present invention provides a semiconductor structure, including a substrate, having a fin structure disposed thereon, a gate structure, crossing over parts of the fin structure. The top surface of the fin structure which is covered by the gate structure is defined as a first top surface, and the top surface of the fin structure which is not covered by the gate structure is defined as a second top surface. The first top surface is higher than the second top surface, and a spacer covers the sidewalls of the gate structure. The spacer includes an inner spacer and an outer spacer, and the outer pacer further contacts the second top surface of the fin structure directly.
Abstract:
A non-planar transistor is provided. It includes a substrate, a fin structure, a gate structure, a spacer structure and a source/drain region. The fin structure is disposed on the substrate, the gate structure is disposed on the fin structure. The spacer structure is disposed on a sidewall of the gate structure. The spacer structure includes a first spacer with a first height and a second spacer with a second height, wherein the first spacer is disposed between the second spacer, and the first height is different from the second height. The source/drain region is disposed in a semiconductor layer at two sides of the spacer structure. The present invention further provides a method of forming the same.
Abstract:
The present invention provides a semiconductor structure, including a substrate, having a recess disposed therein, an insulating layer filled in the recess and disposed on a surface of the substrate, and at least one fin structure disposed in the insulating layer, the fin structure consisting of two terminal parts and a central part disposed between two terminal parts. The terminal parts are disposed on the surface of the substrate and directly contact the substrate, and the central part is disposed right above the recess.
Abstract:
The present invention provides a semiconductor structure, including a substrate, having a fin structure disposed thereon, a gate structure, crossing over parts of the fin structure. The top surface of the fin structure which is covered by the gate structure is defined as a first top surface, and the top surface of the fin structure which is not covered by the gate structure is defined as a second top surface. The first top surface is higher than the second top surface, and a spacer covers the sidewalls of the gate structure. The spacer includes an inner spacer and an outer spacer, and the outer pacer further contacts the second top surface of the fin structure directly.
Abstract:
A semiconductor device comprises a substrate, a gate structure and a gate spacer. The substrate has a semiconductor fin protruding from a surface of the substrate. The gate structure is disposed on the semiconductor fin. The gate spacer is disposed on sidewalls of the gate structure, wherein the gate spacer comprises a first material layer and a second material layer stacked with each other and both of these two material layers are directly in contact with the gate structure.
Abstract:
A method for fabricating semiconductor device is disclosed. The method includes the steps of: providing a substrate; forming a fin-shaped structure on the substrate; forming a cap layer on the fin-shaped structure; removing part of the cap layer on top of the fin-shaped structure; removing part of the fin-shaped structure; removing the remaining cap layer; and removing part of the remaining fin-shaped structure.
Abstract:
A method of manufacturing a semiconductor device is provided. The method includes the following steps. A substrate including a first transistor having a first conductivity type, a second transistor having a second conductivity type and a third transistor having the first conductivity type is formed. An inner-layer dielectric layer is formed on the substrate, and includes a first gate trench corresponding to the first transistor, a second gate trench corresponding to the second transistor and a third gate trench corresponding to the third transistor. A work function metal layer is formed on the inner-layer dielectric layer. An anti-reflective layer is coated on the work function metal layer. The anti-reflective layer on the second transistor and on the top portion of the third gate trench is removed to expose the work function metal layer. The exposed work function metal layer is removed.
Abstract:
A fin field effect transistor (FinFET) with improved electrical performance and a method of manufacturing the same are disclosed. A FinFET comprises a substrate having a top surface and an insulation. At least a recessed fin is extended upwardly from the top surface of the substrate, and at least a gate stack formed above the substrate, wherein the gate stack is extended perpendicularly to an extending direction of the recessed fin, and the recessed fin is outside the gate stack. The insulation comprises a lateral portion adjacent to the recessed fin, and a central portion contiguous to the lateral portion, wherein a top surface of the lateral portion is higher than a top surface of the central portion. A top surface of the recessed fin is lower than the top surface of the central portion of the insulation.
Abstract:
A semiconductor structure includes a substrate, a resist layer, a dielectric material, two U-shaped metal layers and two metals. The substrate has an isolation structure. The resist layer is located on the isolation structure. The dielectric material is located on the resist layer. Two U-shaped metal layers are located at the two sides of the dielectric material and on the resist layer. Two metals are respectively located on the two U-shaped metal layers. This way a semiconductor process for forming said semiconductor structure is provided.
Abstract:
A method for manufacturing a semiconductor device is provided. A substrate having a first gate and a second gate respectively formed in a first region and a second region is provided. An underlayer is formed on the substrate to cover the first gate in the first region and the second gate in the second region. A patterned mask with a predetermined thickness is formed on the underlayer in the first region. The underlayer corresponding to the second gate in the second region is removed by the patterned mask to expose the second gate, wherein the underlayer corresponding to the first gate in the first region is partially consumed to expose part of the first gate.