Abstract:
A method for producing a polysilicon resistor device may include: forming a polysilicon layer; implanting first dopant atoms into at least a portion of the polysilicon layer, wherein the first dopant atoms include deep energy level donors; implanting second dopant atoms into said at least a portion of said polysilicon layer; and annealing said at least a portion of said polysilicon layer.
Abstract:
A method for producing a semiconductor component is provided. The method includes providing a semiconductor body with a first surface and a second surface opposite to the first surface, etching an insulation trench from the first surface partially into the semiconductor body, forming a first insulation layer on one or more sidewalls of the insulation trench, processing the second surface by at least one of grinding, polishing and a CMP-process to expose the first insulation layer, and depositing on the processed second surface a second insulation layer which extends to the first insulation layer.
Abstract:
A method for producing a semiconductor component with a semiconductor body includes providing a substrate of a first conductivity type. A buried semiconductor layer of a second conductivity type is provided on the substrate. A functional unit semiconductor layer is provided on the buried semiconductor layer. At least one trench, which reaches into the substrate, is formed in the semiconductor body. An insulating layer is formed, which covers inner walls of the trench and electrically insulates the trench interior from the functional unit semiconductor layer and the buried semiconductor layer, the insulating layer having at least one opening in the region of the trench bottom. The at least one trench is filled with an electrically conductive semiconductor material of the first conductivity type, wherein the electrically conductive semiconductor material forms an electrical contact from a surface of the semiconductor body to the substrate.
Abstract:
A semiconductor device includes a semiconductor substrate having a first side and a second side opposite the first side, an active area and a through contact area, the active area including a transistor structure having a control electrode, the through contact area including a semiconductor mesa having insulated sidewalls. The semiconductor device further includes a first metallization on the first side in the active area and a recess extending from the first side into the semiconductor substrate and between the active area and the through contact area and including in the through contact area a horizontally widening portion, the recess being at least partly filled with a conductive material forming a first conductive region in ohmic contact with the semiconductor mesa and the transistor structure. The semiconductor device also includes a control metallization on the second side and in ohmic contact with the semiconductor mesa.
Abstract:
A composite wafer including a carrier substrate having a graphite core and a monocrystalline semiconductor substrate or layer attached to the carrier substrate and a corresponding method for manufacturing such a composite wafer is provided.