Abstract:
A semiconductor structure and a manufacturing method thereof are provided. The semiconductor structure includes a substrate, a first dielectric layer, a first doping layer of a first conductivity type, and a second doping layer of a second conductivity type. The substrate has a fin portion. The first dielectric layer is disposed on the substrate and surrounds the fin portion. The first doping layer of the first conductivity type is disposed on the first dielectric layer and is located on two opposite sidewalls of the fin portion. The second doping layer of the second conductivity type is disposed on the two opposite sidewalls of the fin portion and is located between the fin portion and the first doping layer. The first doping layer covers a sidewall and a bottom surface of the second doping layer.
Abstract:
A method for fabricating semiconductor device first includes providing a substrate and a shallow trench isolation (STI) in the substrate, in which the substrate includes a first metal gate and a second metal gate thereon, a first hard mask on the first metal gate and a second hard mask on the second metal gate, and a first interlayer dielectric (ILD) layer around the first metal gate and the second metal gate. Next, the first hard mask and the second hard mask as mask are utilized to remove part of the first ILD layer for forming a recess, and a patterned metal layer is formed in the recess and on the STI.
Abstract:
A method for fabricating semiconductor device is disclosed. First, a substrate is provided, in which the substrate includes a first metal gate and a second metal gate thereon, a first hard mask on the first metal gate and a second hard mask on the second metal gate, and a first interlayer dielectric (ILD) layer around the first metal gate and the second metal gate. Next, the first hard mask and the second hard mask are used as mask to remove part of the first ILD layer for forming a recess, and a patterned metal layer is formed in the recess, in which the top surface of the patterned metal layer is lower than the top surfaces of the first hard mask and the second hard mask.
Abstract:
A method of removing a hard mask on a gate includes forming a first gate structure and a second gate structure. The first gate structure includes a first gate, a first hard mask disposed on the first gate and a first spacer surrounding the first gate and the first hard mask, wherein the second gate structure includes a second gate, a second hard mask disposed on the second gate and a second spacer surrounding the second gate and the second hard mask. Later, the first spacer surrounding the first hard mask and the second spacer surrounding the second hard mask are removed. After that, a dielectric layer is formed to cover the first hard mask and the second hard mask. Finally, the second dielectric layer, the first mask layer and the second mask layer are removed.
Abstract:
A method for fabricating semiconductor device is disclosed. The method includes the steps of: providing a substrate having at least one metal gate thereon, a source/drain region adjacent to two sides of the at least one metal gate, and an interlayer dielectric (ILD) layer around the at least one metal gate; forming a plurality of contact holes in the ILD layer to expose the source/drain region; forming a first metal layer in the contact holes; performing a first thermal treatment process; and performing a second thermal treatment process.
Abstract:
The metal gate structure includes at least a substrate, a dielectric layer, first and second trenches, first metal layer and second metal layers, and two cap layers. In particular, the dielectric layer is disposed on the substrate, and the first and second trenches are disposed in the dielectric layer. The width of the first trench is less than the width of the second trench. The first and second metal layers are respectively disposed in the first trench and the second trench, and the height of the first metal layer is less than or equal to the height of the second metal layer. The cap layers are respectively disposed in a top surface of the first metal layer and a top surface of the second metal layer.
Abstract:
A method for fabricating a metal gate structure includes providing a substrate on which a dielectric layer, a first trench disposed in the dielectric layer, a first metal layer filling up the first trench, a second trench disposed in the dielectric layer, a second metal layer filling up the second trench are disposed, and the width of the first trench is less than the width of the second trench; forming a mask layer to completely cover the second trench; performing a first etching process to remove portions of the first metal layer when the second trench is covered by the mask layer; and performing a second etching process to concurrently remove portions of the first metal layer and portions of the second metal layer after the first etching process.
Abstract:
A method for manufacturing a semiconductor device and a device manufactured using the same are provided. According to a dual silicide approach of the embodiment, a substrate having a first area with plural first metal gates and a second area with plural second metal gates is provided, wherein the adjacent first metal gates and the adjacent second metal gates are separated by an insulation. A dielectric layer is formed on the first and second metal gates and the insulation. The dielectric layer and the insulation at the first area are patterned by a first mask to form a plurality of first openings. Then, a first silicide is formed at the first openings. The dielectric layer and the insulation at the second area are patterned by a second mask to form a plurality of second openings. Then, a second silicide is formed at the second openings.
Abstract:
A semiconductor device includes a fin-shaped structure on a substrate, a gate structure on the fin-shaped structure and an interlayer dielectric (ILD) layer around the gate structure, and a single diffusion break (SDB) structure in the ILD layer and the fin-shaped structure. Preferably, the SDB structure includes a bottom portion and a top portion on the bottom portion, in which the top portion and the bottom portion include different widths.
Abstract:
A semiconductor device includes a fin-shaped structure on a substrate, a gate structure on the fin-shaped structure and an interlayer dielectric (ILD) layer around the gate structure, and a single diffusion break (SDB) structure in the ILD layer and the fin-shaped structure. Preferably, the SDB structure includes a bottom portion and a top portion on the bottom portion, in which the top portion and the bottom portion include different widths.