Abstract: During the production of integrated semiconductor structures, it is often necessary to differently dope immediately adjacent regions. A method is provided for producing two adjacent regions of a predetermined area in an integrated semiconductor, whereby a first region of the two adjacent regions includes a doping with a lower target concentration than a second region. The predetermined area of a semiconductor blank is doped with a dopant until a concentration of the dopant is obtained that is at least as high as the target concentration of the second region. A protective layer is applied to the second region, and the dopant is out-diffused from the first region until a concentration of dopant is obtained that corresponds to the target concentration of the first region.

Abstract: Machine for producing a web includes a former for sheet formation of the web, a press section for dewatering the web, a drying section for drying the web, and at least one edge strip forming device positioned in an area of at least one of the press section and the drying section, which is arranged to separate at least one edge strip from the web.

Abstract: Apparatus and process for dewatering a material web. The apparatus includes at least one pressure chamber formed by at least four substantially parallel rolls, a device arranged to introduce a pressurized gas into the at least one pressure chamber, and the at least four substantially parallel rolls being displaceable relative to one another to change an effective area of the at least one pressure chamber. The material web is guided through the at least one pressure chamber. The process includes pressurizing at least one pressure chamber with a gas medium, guiding the material web through the pressure chamber, driving water out of the material web using gas pressure within the at least one pressure chamber, and changing an effective area of the pressure chamber so as to adjust a dewatering capacity.

Abstract: Device and process for removing a fibrous material web from a drying section of a machine for producing and/or refining the fibrous material web and into a catch device. The drying section includes heated drying cylinders, guidance rolls, and at least one drying wire arranged such that the fibrous material web is guided through the drying section over the heated drying cylinders and the guidance rolls at least predominately by the at least one drying wire. The device includes at least one controllable separating device arranged to at least reduce an adhesion force between the fibrous material web and the at least one drying wire.

Abstract: A sealing device and process for laterally sealing at least one overpressure zone or underpressure zone adjacent to an actuating surface in a paper-making machine. The sealing device has at least one sealing element arranged movably at least locally in an intake area of a support. The sealing element is loaded with a sealing or opposing force in order to place it against the actuating surface. A stopping element is fixed at a distance from the actuating surface which limits the seating motion of the sealing element.

Abstract: A winding machine and process for winding a material web onto a reel. The material web is guided around a carrying drum, in which a nip is formed between the carrying drum and the reel. One of the reel and the carrying drum may be cyclically inclined in relation to a travel direction of the material web by a drive device or press device in order to achieve an axial changing of the material web in a winding roll.

Abstract: Machine for producing a web includes a former for sheet formation of the web, a press section for dewatering the web, a drying section for drying the web, and at least one edge strip forming device positioned in an area of at least one of the press section and the drying section, which is arranged to separate at least one edge strip from the web.

Abstract: The invention concerns the wire section of a papermaking machine and a method of removing water from a fiber web in that section. A fiber suspension is discharged from a headbox on at least one and usually between two wires in the forming section. The fiber suspension is dewatered until it eventually reaches the point of immobility at which the fiber orientation is fixed. The rate of removal of water transverse to the direction of travel of the web is controlled at regions across the web. In particular, the rate of water removal is decreased at the edge regions of the wire and the web, as compared with the center region, to improve the transverse formation profile of the web.

Abstract: The plant comprises a first vacuum plate with openings on which a sheet may be fixed in an exact planar way by suction. A second plate with a slightly arcuated surface and turned towards the first plate is adjustable in height by two compressing cylinders and is pivotingly fixed to the structure. The second plate is also a vacuum plate and may be unrolled on the first plate. During the unrolling motion, the second plate is conducted by means of retractable bolts which are engaged into corresponding openings of the first plate. To compress two sheets, a first sheet is fixed in an exact planar way to the first plate by suction and transferred by an unrolling motion of the second plate thereon, the suction force of the plate being reduced and that of the second plate being correspondingly increased. A second sheet is then fixed to the first plate and cold- or hot-compressed according to the same unrolling process as the first sheet.