Abstract:
A method of fabricating a single diffusion break includes providing a fin with two gate structures crossing the fin and a middle dummy gate structure crossing the fin, wherein the middle dummy gate structure is sandwiched by the gate structures. Later, numerous spacers are formed and each spacer respectively surrounds the gate structures and the middle dummy gate structure. Then, the middle dummy gate structure, and part of the fin directly under the middle dummy gate structure are removed to form a recess. Finally, an isolating layer in the recess is formed to close an entrance of the recess so as to form a void embedded within the recess.
Abstract:
A method for fabricating semiconductor device includes the steps of: providing a substrate having at least a fin-shaped structure thereon and the fin-shaped structure includes a top portion and a bottom portion; forming a gate structure on the fin-shaped structure; forming a cap layer on the top portion of the fin-shaped structure not covered by the gate structure; performing an annealing process to drive germanium from the cap layer to the top portion of the fin-shaped structure; removing the cap layer; and forming an epitaxial layer around the top portion of the fin-shaped structure.
Abstract:
A method for fabricating semiconductor device comprising: providing a substrate having a gate structure thereon and a first interlayer dielectric (ILD) layer surrounding the gate structure; removing part of the gate structure; forming a first mask layer on the first ILD layer and the gate structure; removing the first mask layer on the first ILD layer and part of the first mask layer on the gate structure for forming a first hard mask on the gate structure; forming a second mask layer on the first ILD layer, the first hard mask, and the gate structure; and planarizing the second mask layer to form a second hard mask on the gate structure, in which the top surfaces of the first hard mask, the second hard mask, and the first ILD layer are coplanar.
Abstract:
A semiconductor device is provided, comprising a substrate with a first insulating film formed thereon, and a transistor formed on the first insulating film. The transistor at least comprises an oxide semiconductor layer formed on the first insulating film, a first gate insulation film formed on the oxide semiconductor layer, a gate electrode formed above the first gate insulation film, and spacers formed on the oxide semiconductor layer. The spacers at least cover the sidewalls of the first gate insulation film and the sidewalls of the gate electrode. The gate electrode has a gate width and the first gate insulation film has a first width, wherein the gate width is different from the first width.
Abstract:
A semiconductor process including the following step is provided. A sacrificial layer is formed in a substrate. The sacrificial layer and the substrate are etched to form a trench in the sacrificial layer and the substrate. A first isolation material fills the trench, thereby a first isolation structure being formed. The sacrificial layer is patterned to form a plurality of sacrificial patterns. A plurality of spacers are formed beside the sacrificial patterns respectively. The sacrificial patterns are removed. Layouts of the spacers are transferred into the substrate, so that a plurality of fin structures are formed in the substrate. The spacers are then removed. The present invention also provides a semiconductor structure formed by said semiconductor process.
Abstract:
A method for fabricating semiconductor device is disclosed. The method includes the steps of: providing a substrate having a first region and a second region; forming a plurality of fin-shaped structures and a first shallow trench isolation (STI) around the fin-shaped structures on the first region and the second region; forming a patterned hard mask on the second region; removing the fin-shaped structures and the first STI from the first region; forming a second STI on the first region; removing the patterned hard mask; and forming a gate structure on the second STI.
Abstract:
A method for fabricating semiconductor device is disclosed. The method includes the steps of: providing a substrate having at least a fin-shaped structure thereon and the fin-shaped structure includes a top portion and a bottom portion; forming a gate structure on the fin-shaped structure; forming a cap layer on the top portion of the fin-shaped structure not covered by the gate structure; performing an annealing process to drive germanium from the cap layer to the top portion of the fin-shaped structure; removing the cap layer; and forming an epitaxial layer around the top portion of the fin-shaped structure.
Abstract:
An illumination system includes a light source used to generate a light and an opaque plate. The opaque plate is disposed between the light source and a photomask and includes an annular aperture and an aperture dipole. The annular aperture has an inner side and an outer side. The aperture dipole includes at least one first aperture and at least one second aperture. The first aperture and the second aperture connected to the annular aperture respectively and protruding out from the outer side of the annular aperture are disposed symmetrically with respect to a center of the annular aperture.
Abstract:
A method of decomposing layout design for preparing a photomask set printed onto a wafer by photolithography includes the following steps. An integrated circuit layout design including several features is obtained. The overlay relation of these features is recognized to classify these features into a first group and a second group. These features printed onto different layers of the wafer are distinguished to decompose the first group into a first feature and a third feature, and the second group into a second feature and a fourth feature. The first feature is outputted to a first photomask, the second feature is outputted to a second photomask, a third feature is outputted to a third photomask and a fourth feature is outputted to a fourth photomask. A method of forming a photomask set and a method of fabricating an integrated circuit are also provided.
Abstract:
A FinFET includes a fin-shaped structure, a gate structure, an epitaxial layer, an interlayer dielectric layer, an opening, a germanium cap and a contact plug. The fin-shaped structure is disposed on the substrate. The gate structure covers a portion of the fin-shaped structure. The epitaxial layer is disposed on the fin-shaped structure adjacent to the gate structure. The interlayer dielectric layer covers the gate structure and the epitaxial layer. The opening is in the interlayer dielectric layer. The germanium cap fills the bottom of the opening and has a germanium concentration in excess of 50 atomic %. The contact plug is disposed on the germanium cap in the opening.