Abstract: A manufacturing process for casting amorphous metallic parts separates the filling and quenching steps of the casting process in time. The mold is heated to an elevated casting temperature at which the metallic alloy has high fluidity. The alloy fills the mold at the casting temperature, thereby enabling the alloy to effectively fill the spaces of the mold. The mold and the alloy are then quenched together, the quenching occurring before the onset of crystallization in the alloy. With this process, compared to conventional techniques, amorphous metallic parts with higher aspect ratios can be prepared.

Abstract: A method uses a treatment process for surfaces which subsequently are to be connected by bonding, gluing or molding. The surfaces are exposed to an atmosphere with activated hydrogen. The connection is made a process step for eliminating the conservation treatment. The surfaces can be subjected to a plasma discharge in an atmosphere containing hydrogen. The plasma discharge is operated by a cathode/anode path as a DC discharge, and using a thermionic cathode as the cathode. The workpiece to be stored in air comprises a connection, which by gluing, bonding or molding, is subjectable to substantially higher stress than an identical workpiece which is stored in an identical manner, this being determinable by essentially identical Auger diagrams.

Abstract: A method uses a treatment process for surfaces which subsequently are to be connected by bonding, gluing or molding. The surfaces are exposed to an atmosphere with activated hydrogen. The connection is made a process step for eliminating the conservation treatment. The surfaces can be subjected to a plasma discharge in an atmosphere containing hydrogen. The plasma discharge is operated by a cathode/anode path as a DC discharge, and using a thermionic cathode as the cathode. The workpiece to be stored in air comprises a connection, which by gluing, bonding or molding, is subjectable to substantially higher stress than an identical workpiece which is stored in an identical manner, this being determinable by essentially identical Auger diagrams.

Abstract: The optical waveguide coupler comprises a structure (1) of a number of elongated narrow optical waveguide strips (2), which consist respectively of a front area (3), a center area (4) and a coupling area (5). The center area (4) has respective transition areas (6) and (7) to the corresponding area (3) or (5). A gap (9) in the front areas (3) provided between two adjoining strips (2) is larger than the thickness of the narrow strips (2). The front faces (8) of the front areas (3), and the front faces of the coupling areas (5) are embodied to be as smooth as possible, wherein all strips form a stack in the coupling area (5). The gaps are pits which result from etching of an Si substrate with the aid of a DRIE etching process.

Abstract: A manufacturing process for casting amorphous metallic parts separates the filling and quenching steps of the casting process in time. The mold is heated to an elevated casting temperature at which the metallic alloy has high fluidity. The alloy fills the mold at the casting temperature, thereby enabling the alloy to effectively fill the spaces of the mold. The mold and the alloy are then quenched together, the quenching occurring before the onset of crystallization in the alloy. With this process, compared to conventional techniques, amorphous metallic parts with higher aspect ratios can be prepared.

Abstract: The optical waveguide coupler comprises a structure (1) of a number of elongated narrow optical waveguide strips (2), which consist respectively of a front area (3), a center area (4) and a coupling area (5). The center area (4) has respective transition areas (6) and (7) to the corresponding area (3) or (5). A gap (9) in the front areas (3) provided between two adjoining strips (2) is larger than the thickness of the narrow strips (2). The front faces (8) of the front areas (3), and the front faces of the coupling areas (5) are embodied to be as smooth as possible, wherein all strips form a stack in the coupling area (5). The gaps are pits which result from etching of an Si substrate with the aid of a DRIE etching process.

Abstract: A method uses a treatment process for surfaces which subsequently are to be connected by bonding, gluing or molding. The surfaces are exposed to an atmosphere with activated hydrogen. The connection is made a process step for eliminating the conservation treatment. The surfaces can be subjected to a plasma discharge in an atmosphere containing hydrogen. The plasma discharge is operated by a cathode/anode path as a DC discharge, and using a thermionic cathode as the cathode. The workpiece to be stored in air comprises a connection, which by gluing, bonding or molding, is subjectable to substantially higher stress than an identical workpiece which is stored in an identical manner, this being determinable by essentially identical Auger diagrams.

Abstract: A method uses a treatment process for surfaces which subsequently are to be connected by bonding, gluing or molding. The surfaces are exposed to an atmosphere with activated hydrogen. The connection is made a process step for eliminating the conservation treatment. The surfaces can be subjected to a plasma discharge in an atmosphere containing hydrogen. The plasma discharge is operated by a cathode/anode path as a DC discharge, and using a thermionic cathode as the cathode. The workpiece to be stored in air comprises a connection, which by gluing, bonding or molding, is subjectable to substantially higher stress than an identical workpiece which is stored in an identical manner, this being determinable by essentially identical Auger diagrams.