摘要:
First, a substrate with a recess is provided in a semiconductor process. Second, an embedded SiGe layer is formed in the substrate. The embedded SiGe layer includes an epitaxial SiGe material which fills up the recess. Then, a pre-amorphization implant (PAI) procedure is carried out on the embedded SiGe layer to form an amorphous region. Next, a source/drain implanting procedure is carried out on the embedded SiGe layer to form a source doping region and a drain doping region. Later, a source/drain annealing procedure is carried out to form a source and a drain in the substrate. At least one of the pre-amorphization implant procedure and the source/drain implanting procedure is carried out in a cryogenic procedure below −30° C.
摘要:
A semiconductor process is provided, including following steps. A polysilicon layer is formed on a substrate. An asymmetric dual-side heating treatment is performed to the polysilicon layer, wherein a power for a forntside heating is different from a power for a backside heating.
摘要:
A method for fabricating a semiconductor device is implemented by using a stress memorization technique. The method includes the following steps. Firstly, a substrate is provided, wherein a gate structure is formed over the substrate. Then, a pre-amorphization implantation process is performed to define an amorphized region at a preset area of the substrate with the gate structure serving as an implantation mask. During the pre-amorphization implantation process is performed, the substrate is controlled at a temperature lower than room temperature. Then, a stress layer is formed on the gate structure and a surface of the amorphized region. Then, a thermal treatment process is performed to re-crystallize the amorphized region of the substrate. Afterwards, the stress layer is removed.
摘要:
First, a substrate with a recess is provided in a semiconductor process. Second, an embedded SiGe layer is formed in the substrate. The embedded SiGe layer includes an epitaxial SiGe material which fills up the recess. Then, a pre-amorphization implant (PAI) procedure is carried out on the embedded SiGe layer to form an amorphous region. Next, a source/drain implanting procedure is carried out on the embedded SiGe layer to form a source doping region and a drain doping region. Later, a source/drain annealing procedure is carried out to form a source and a drain in the substrate. At least one of the pre-amorphization implant procedure and the source/drain implanting procedure is carried out in a cryogenic procedure below −30° C.
摘要:
A semiconductor process is provided, including following steps. A polysilicon layer is formed on a substrate. An asymmetric dual-side heating treatment is performed to the polysilicon layer, wherein a power for a front-side heating is different from a power for a backside heating.
摘要:
A manufacturing method of a metal gate structure includes first providing a substrate having a dummy gate formed thereon. The dummy gate includes a high-K gate dielectric layer, a bottom barrier layer, a first etch stop layer and a sacrificial layer sequentially and upwardly stacked on the substrate. Then, the sacrificial layer is removed to form a gate trench with the first etch stop layer exposed on the bottom of the gate trench. After forming the gate trench, a first work function metal layer is formed in the gate trench.
摘要:
The present invention discloses a discontinuous islanded ferromagnetic recording film with perpendicular magnetic anisotropy. The discontinuous islanded ferromagnetic recording film includes a substrate and a ferromagnetic layer. The ferromagnetic layer is formed on the substrate and annealed by a high-temperature vacuum annealing process. After annealing, a surface energy difference existed between the ferromagnetic layer and the substrate turns the ferromagnetic layer into well-separated and discontinuous islanded ferromagnetic particles. Each islanded ferromagnetic particle is thought of a single magnetic domain, which is beneficial to achieve a discontinuous islanded ferromagnetic recording film with perpendicular magnetic anisotropy.
摘要:
A method for fabricating semiconductor device is disclosed. The method includes the steps of: providing a substrate, wherein the substrate comprises a gate structure thereon; forming an offset spacer on the sidewall of the gate structure; forming a cap layer to cover the substrate and the gate structure; performing an ion implantation process to implant carbon atoms into the cap layer; performing a first etching process to form a recess in the substrate adjacent to two sides of the gate structure; and forming an epitaxial layer in the recess.
摘要:
The present invention discloses a single-layered recording film with perpendicular magnetic anisotropy. The single-layered recording film includes a substrate and a ferromagnetic layer. The ferromagnetic layer is formed on the substrate and annealed by a rapid thermal annealing process. After annealing, the average grain size of the single-layered recording film is close to the film thickness of ferromagnetic layer, which is beneficial to achieve a single-layered recording film with perpendicular magnetic anisotropy.