摘要:
A semiconductor wafer for semiconductor components and to a method for its production is disclosed. In one embodiment, the semiconductor wafer includes a front side with an adjoining near-surface active zone as basic material for semiconductor component structures. The rear side of the semiconductor wafer is adjoined by a getter zone for gettering impurity atoms in the semiconductor wafer. The getter zone contains oxygen precipitates. In the near-surface active zone, atoms of doping material are located on lattice vacancies. The atoms of doping material have a higher diffusion coefficient that the oxygen atoms.
摘要:
A semiconductor device includes a first trench and a second trench extending into a semiconductor body from a surface. A body region of a first conductivity type adjoins a first sidewall of the first trench and a first sidewall of the second trench, the body region including a channel portion adjoining to a source structure and being configured to be controlled in its conductivity by a gate structure. The channel portion is formed at the first sidewall of the second trench and is not formed at the first sidewall of the first trench. An electrically floating semiconductor zone of the first conductivity type adjoins the first trench and has a bottom side located deeper within the semiconductor body than the bottom side of the body region.
摘要:
A method produces a metal layer on a semiconductor substrate. A metal layer is produced on the semiconductor substrate by depositing metal particles. The metal particles include cores made of a first metal material and shells surrounding the cores. The shells are made of a second metal material that is resistant to oxidation.
摘要:
A semiconductor power device includes a SiC semiconductor body. At least part of the SiC semiconductor body constitutes a drift zone. A first contact is at a first side of the SiC semiconductor body. A second contact is at a second side of the SiC semiconductor body. The first side is opposite the second side. A current path between the first contact and the second contact includes at least one graphene layer.
摘要:
A vertical semiconductor component having a semiconductor body, which has an inner region and an edge region that is arranged between the inner region and an edge of the semiconductor body. At least one semiconductor junction between a first semiconductor zone of a first conduction type, said first semiconductor zone being arranged in the region of a first side of the semiconductor body in the inner region, and a second semiconductor zone of the second conduction type, said second semiconductor zone adjoining the first semiconductor zone in the vertical direction. A contiguous third semiconductor zone of the second conduction type, said third semiconductor zone being arranged at a distance from the first semiconductor zone in the second semiconductor zone in the vertical direction of the semiconductor body and extending as far as the edge region in the lateral direction of the semiconductor body, and the doping of the third semiconductor zone being selected in such a manner that it is completely depleted of charge carriers when a reverse voltage is applied to the pn junction.
摘要:
A semiconductor device includes a source, a drain, and a gate configured to selectively enable a current to pass between the source and the drain. The semiconductor device includes a drift zone between the source and the drain and a first field plate adjacent the drift zone. The semiconductor device includes a dielectric layer electrically isolating the first field plate from the drift zone and charges within the dielectric layer close to an interface of the dielectric layer adjacent the drift zone.
摘要:
A semiconductor device in one embodiment has a first connection region, a second connection region and a semiconductor volume arranged between the first and second connection regions. Provision is made, within the semiconductor volume, in the vicinity of the second connection region, of a field stop zone for spatially delimiting a space charge zone that can be formed in the semiconductor volume, and of an anode region adjoining the first connection region. The dopant concentration profile within the semiconductor volume is configured such that the integral of the ionized dopant charge over the semiconductor volume, proceeding from an interface of the anode region which faces the second connection region, in the direction of the second connection region, reaches a quantity of charge corresponding to the breakdown charge of the semiconductor device only near the interface of the field stop zone which faces the second connection region.
摘要:
A semiconductor device includes first semiconductor zones of a first conductivity type having a first dopant species of the first conductivity type and a second dopant species of a second conductivity type different from the first conductivity type. The semiconductor device also includes second semiconductor zones of the second conductivity type including the second dopant species. The first and second semiconductor zones are alternately arranged in contact with each other along a lateral direction extending in parallel to a surface of a semiconductor body. One of the first and second semiconductor zones constitute drift zones and a diffusion coefficient of the second dopant species is at least twice as large as the diffusion coefficient of the first dopant species. A concentration profile of the first dopant species along a vertical direction perpendicular to the surface of the semiconductor body includes at least two maxima.
摘要:
A power semiconductor component is described. One embodiment provides a semiconductor body having an inner zone and an edge zone. A base zone of a first conduction type is provided. The base zone is arranged in the at least one inner zone and the at least one edge zone. An emitter zone of a second conduction type is provided. The emitter zone is arranged adjacent to the base zone in a vertical direction of the semiconductor body. A field stop zone of the first conduction type is provided. The field stop zone is arranged in the base zone and has a first field stop zone section having a first dopant dose in the edge zone and a second field stop zone section having a second dopant dose in the inner zone. The first dopant dose is higher than the second dopant dose.
摘要:
In one embodiment, a method of forming a semiconductor device includes forming a first porous semiconductor layer over a top surface of a substrate. A first epitaxial layer is formed over the first porous semiconductor layer. A circuitry is formed within and over the first epitaxial layer. The circuitry is formed without completely oxidizing the first epitaxial layer.