摘要:
A semiconductor component comprises a semiconductor body with at least one protective trench in the semiconductor body. An insulation layer is situated at least at the bottom of the protective trench. An electrically conductive layer having a thickness D is formed on the insulation layer in the protective trench, wherein the electrically conductive layer only partly fills the protective trench.
摘要:
A method for producing a connection electrode for a first semiconductor zone and a second semiconductor zone includes producing a trench extending through the first semiconductor zone right into the second semiconductor zone in such a way that the first semiconductor zone is uncovered at sidewalls of the trench and the second semiconductor zone is uncovered at least at a bottom of the trench. The method also includes applying a protective layer to a first one of the first and second semiconductor zones in the trench, and producing a first connection zone in the second of the two semiconductor zones, which is not covered by the protective layer. The method further includes depositing an electrode layer at least onto the sidewalls and the bottom of the trench for the purpose of producing the connection electrode.
摘要:
Method for producing a connection electrode for two semiconductor zones arranged one above another The invention relates to a method for producing a connection electrode for a first semiconductor zone and a second semiconductor zone, which are arranged one above another and are doped complementarily with respect to one another, which method comprises the method steps of: producing a trench extending through the first semiconductor zone right into the second semiconductor zone in such a way that the first semiconductor zone is uncovered at sidewalls of the trench and the second semiconductor zone is uncovered at least at a bottom of the trench, applying a protective layer to one of the first and second semiconductor zones in the trench, producing a first connection zone in the other of the two semiconductor zones, which is not covered by the protective layer, by introducing dopant atoms into this other semiconductor zone via the trench, the connection zone being of the same conductivity type as said other semiconductor zone, but doped more highly, depositing an electrode layer at least onto the sidewalls and the bottom of the trench for the purpose of producing the connection electrode.
摘要:
A method for producing a connection electrode for a first and second adjacent and complementarily doped semiconductor zones includes a step of producing a trench extending through the first semiconductor zone into the second semiconductor zone in such a way that the first semiconductor zone is uncovered at sidewalls of the trench and the second semiconductor zone is uncovered at least at a bottom of the trench. The method also includes producing a first connection zone in the first semiconductor zone by implanting dopant atoms into the sidewalls at least at a first angle. The method further includes producing a second connection zone in the second semiconductor zone by implanting dopant atoms at least at a second, different angle. The method also includes depositing an electrode layer at least onto the sidewalls and the bottom of the trench for the purpose of producing the connection electrode.
摘要:
According to one embodiment, a method for manufacturing a semiconductor device includes forming trenches in a first side of a semiconductor material and forming a thick oxide layer on the trenches and on the first side. A part of the first side and the trenches is masked using a first mask, and the semiconductor material is doped by implantation through the thick oxide layer while the first mask is present. At least part of the thick oxide layer is removed while the first mask remains.
摘要:
According to one embodiment, a method for manufacturing a semiconductor device includes forming trenches in a first side of a semiconductor material and forming a thick oxide layer on the trenches and on the first side. A part of the first side and the trenches is masked using a first mask, and the semiconductor material is doped by implantation through the thick oxide layer while the first mask is present. At least part of the thick oxide layer is removed while the first mask remains.
摘要:
An anchoring structure for a metal structure of a semiconductor device includes an anchoring recess structure having at least one overhanging side wall, the metal structure being at least partly arranged within the anchoring recess structure.
摘要:
An anchoring structure for a metal structure of a semiconductor device includes an anchoring recess structure having at least one overhanging side wall, the metal structure being at least partly arranged within the anchoring recess structure.
摘要:
A semiconductor component includes a surface region. A modified doping region is provided in the edge region of the cell array. In the surface region or modified doping region the doping concentration is lowered and/or in the surface region or modified doping region the conductivity type is formed such that it is opposite to the conductivity type of the actual semiconductor material region, or in which a field plate region is provided.
摘要:
The invention relates to a MOS transistor device of the trench type, in which, in a semiconductor region of a first conductivity type, within a deep gate trench extending in the vertical direction of the semiconductor region, a vertical gate electrode and a gate oxide with a field plate step insulating the latter are formed and, in an adjoining mesa region outside and laterally with respect to the deep trench, at the upper section thereof, a source electrode region of the first conductivity type and a body region of a second conductivity type with one or a plurality of assigned body contact are formed, a drain electrode region of the first conductivity type lying opposite the deep trench in the vertical direction. The MOS transistor has a deep body reinforcement of the second conductivity type below the body region at the location of the body contact, said body reinforcement lying deeper than the field plate step.