Abstract:
A semiconductor device includes a semiconductor substrate, a gate structure, a source/drain region, a source/drain contact structure, a first dielectric layer, a first spacer, and a first connection structure. The gate structure is disposed on the semiconductor substrate. The source/drain region is disposed in the semiconductor substrate and disposed at a side of the gate structure. The source/drain contact structure is disposed on the source/drain region. The first dielectric layer is disposed on the source/drain contact structure and the gate structure. The first spacer is disposed in a first contact hole penetrating the first dielectric layer on the source/drain contact structure. The first connection structure is disposed in the first contact hole. The first connection structure is surrounded by the first spacer in the first contact hole, and the first connection structure is connected with the source/drain contact structure.
Abstract:
A method for fabrication a nanosheet device includes providing forming a stacked layer on a substrate, having first material layers and second material layers in different materials, alternatingly stacked up. The stacked layer is patterned to a stacked fin. A dummy stack is formed on the stacked fin. An etching back process is performed with the dummy stack with spacers to etch the stacked fin and expose the substrate. Laterally etches the first material layers and the second material layers, to have indent portions. Inner spacers fill the indent portions. A first/second source/drain layer is formed on the substrate at both sides of the dummy stack. Etching process is performed to remove the dummy gate of the dummy stack and the selected one of the first material layers and the second material layers between the inner spacers. Metal layer fills between the spacers and the inner spacers.
Abstract:
A method for fabricating semiconductor device includes the steps of: providing a substrate having a fin-shaped structure thereon; forming a single diffusion break (SDB) structure in the substrate to divide the fin-shaped structure into a first portion and a second portion; forming a first gate structure on the SDB structure; forming an interlayer dielectric (ILD) layer on the first gate structure; removing the first gate structure to form a first recess; and forming a dielectric layer in the first recess.
Abstract:
A method of fabricating an integrated circuit includes the following steps. A first reticle is used to form a first pattern, wherein the first pattern includes a first feature and a first jog part protruding from and orthogonal to the first feature. A second reticle is used to form a second pattern, wherein the second pattern includes a second feature, and the first feature is between the second feature and the first jog part. A third reticle is used to form a third pattern, wherein the third pattern includes a third-one feature overlapping the first jog part and a third-two feature overlapping the second feature.
Abstract:
A semiconductor device with three transistors of same conductive type but different threshold voltage is provided in the present invention, wherein the first transistor includes a high-k dielectric layer, a first bottom barrier metal layer, a second bottom barrier metal layer, a work function metal layer and a low resistance metal. The second transistor includes the high-k dielectric layer, the first bottom barrier metal layer, the second bottom barrier metal layer and the low resistance metal, and a third transistor on the substrate. The third transistor includes the high-k dielectric layer, the first bottom barrier metal layer and the low resistance metal.
Abstract:
A semiconductor structure and a manufacturing method for the same are disclosed. The semiconductor structure includes a first gate structure, a second gate structure and a second dielectric spacer. Each of the first gate structure and the second gate structure adjacent to each other includes a first dielectric spacer. The second dielectric spacer is on one of opposing sidewalls of the first gate structure and without being disposed on the dielectric spacer of the second gate structure.
Abstract:
A semiconductor structure and a manufacturing method for the same are disclosed. The semiconductor structure includes a first gate structure, a second gate structure and a second dielectric spacer. Each of the first gate structure and the second gate structure adjacent to each other includes a first dielectric spacer. The second dielectric spacer is on one of opposing sidewalls of the first gate structure and without being disposed on the dielectric spacer of the second gate structure.
Abstract:
A method for manufacturing a semiconductor device having a metal gate includes forming a filling layer and a high-K gate dielectric layer in the first recess between a pair of spacers, wherein the high-K gate dielectric layer and the filling layer are stacked in the first recess sequentially, and an exposed top surface of the high-K gate dielectric layer and a top surface of the filling layer are lower than a top surface of each spacer; and removing a part of each spacer and widening the first recess on the top surface of the filling layer to form a second recess, wherein a width of the second recess is larger than a width of the first recess.
Abstract:
A semiconductor device includes a single diffusion break (SDB) structure dividing a fin-shaped structure into a first portion and a second portion, an isolation structure on the SDB structure, a first spacer adjacent to the isolation structure, a metal gate adjacent to the isolation structure, a shallow trench isolation (STI around the fin-shaped structure, and a second isolation structure on the STI. Preferably, a top surface of the first spacer is lower than a top surface of the isolation structure and a bottom surface of the first spacer is lower than a bottom surface of the metal gate.
Abstract:
A semiconductor device includes a single diffusion break (SDB) structure dividing a fin-shaped structure into a first portion and a second portion, a first isolation structure on the SDB structure, a shallow trench isolation (STI) adjacent to the SDB structure, and a second isolation structure on the STI. Preferably, the first isolation structure further includes a cap layer on the SDB structure and a dielectric layer on the cap layer.