摘要:
Process for producing a tool insert for injection molding a microstructured part fabricated of a synthetic material, a metal or a ceramic material and which comprises an arrangement of microchannels and which further comprises an arrangement of through-going orifices extending in a substantially perpendicular manner with respect to the outer surface of the part. The process comprises the following steps: (1) microstructuring the front side of a first wafer by means of plasma etching to form the arrangement of microchannels, which are formed on the front side of the wafer, (2) removing the etching mask from the front side of the first wafer, (3) microstructuring the rear side of the first wafer by means of plasma etching to form the arrangement of through-going orifices which extend in a substantially perpendicular manner with respect to the front side of the first wafer, (4) removing the etching mask from the rear side of the first wafer, (5) bonding the rear side of the first wafer to a carrier substrate to form a master, (6) electrochemically depositing a metal layer on the front side of the first wafer and in the through-going orifices which are present therein, wherein the deposited metal layer achieves a depth which is greater than the depth of the microchannels on the front side of the first wafer, and (7) separating the metal layer from the master, wherein the separated metal layer can be used as a tool insert for injection molding a part and has integrated in the metal layer piercing punches, each such punch having a shape and dimensions defined by the shape and dimensions of a corresponding one of the through-going orifices provided in the first wafer.
摘要:
The planar optical structure forms an evanescent-field measuring platform. A body is made from the thermoplastic plastic with a three-dimensionally structured surface, wherein molding is performed directly from a master made of glass coated with metal oxide, without deposition of further coatings on a surface of the master. The planar optical structure forming an evanescent-field measuring platform has a first essentially optically transparent, waveguiding layer (a) with a refractive index n1 and a second essentially optical transparent layer (b) with refractive index n2, where n1>n2, in a case of an embodiment of a planar optical film waveguide, or a metal layer (a′) and a second layer (b), in a case of an embodiment for generating a surface plasmon resonance, wherein the second layer (b) includes a material from a group of cyclo-olefin polymers and cyclo-olefin copolymers.
摘要:
The present invention relates to a method for manufacture a body from a thermoplastic plastic with a three-dimensionally structured surface, wherein molding is performed directly from a master made of glass coated with metal oxide, without deposition of further coatings on a surface of the master. The invention also relates to bodies manufactured with this method from a thermoplastic featuring a three-dimensionally structured surface, as well as to planar optical structures likewise manufactured with this method for generating evanescent-field measuring platforms and to a use thereof. The invention furthermore relates to a planar optical structure for generating an evanescent-field measuring platform, comprising a first essentially optical transparent, waveguiding layer (a) with refractive index n1 and a second essentially optical transparent layer (b) with refractive index n2, where n1>n2, in a case of an embodiment of a planar optical film waveguide, or comprising a metal layer (a′) and a second layer (b), in a case of an embodiment for generating a surface plasmon resonance, wherein the second layer (b) comprises a material from a group comprising cyclo-olefin polymers and cyclo-olefin copolymers.
摘要:
The present invention relates to a method for manufacture a body from a thermoplastic plastic with a three-dimensionally structured surface, wherein molding is performed directly from a master made of glass coated with metal oxide, without deposition of further coatings on a surface of the master. The invention also relates to bodies manufactured with this method from a thermoplastic featuring a three-dimensionally structured surface, as well as to planar optical structures likewise manufactured with this method for generating evanescent-field measuring platforms and to a use thereof. The invention furthermore relates to a planar optical structure for generating an evanescent-field measuring platform, comprising a first essentially optical transparent, waveguiding layer (a) with refractive index n1 and a second essentially optical transparent layer (b) with refractive index n2, where n1>n2, in a case of an embodiment of a planar optical film waveguide, or comprising a metal layer (a′) and a second layer (b), in a case of an embodiment for generating a surface plasmon resonance, wherein the second layer (b) comprises a material from a group comprising cyclo-olefin polymers and cyclo-olefin copolymers.
摘要:
In a method of joining two workpieces (10, 16) without extraneous materials to produce a workpiece 25 which is joined over a joining area (24) which is formed by two fully adjoining surfaces (13, 13′) of the two workpieces (10, 16), with the first workpiece (16) being of plastic and the second workpiece (10) being of a material different from plastic, a strong bond is achieved even when the coefficients of thermal expansion of the workpieces are different by activating at least the surface (13′) of the first workpiece (16) by irradiation with high-energy radiation in a first step, bringing the surfaces (13, 13′) of the workpieces (10, 16) into contact in a second step and pressing the two workpieces (10, 16) against one another at room temperature, in particular at a temperature of from 15° C. to 30° C., to join them at the surfaces (13, 13′).
摘要:
A process for producing microstructured tool insert for injection molding a part, the part being fabricated of a synthetic material, a metal or a ceramic material and including an arrangement of microstructures which are formed on an outer surface of the part and have two different predetermined depths. The process comprises the following steps: (1) microstructuring the front side of the first wafer by means of plasma etching to form an arrangement of first microstructures, which are formed on the front side of the wafer and which have a first predetermined depth, (2) microstructuring the rear side of the first wafer by means of plasma etching to form an arrangement of the second microstructures which form cavities which have a first orifice on the rear side of the first wafer and issue into the first microstructures on the front side of the first wafer or have a second orifice on the front side of the first wafer, (3) bonding the rear side of the first wafer to a carrier substrate to form a master, (4) electrochemically depositing a metal layer on the front side of the first wafer and in the cavities which are present therein and are formed by the second microstructures, and (5) separating the metal layer from the master, wherein the separated metal layer can be used as a tool insert for injection molding a part.
摘要:
Process for producing a tool insert for injection molding a part which is produced from a synthetic material, a metal or a ceramic material and which comprises an arrangement of microstructures which are formed on an outer surface of the part and have a predetermined depth. The process comprises the following steps: photo-lithographically masking the front side of a first wafer with a first etching mask which corresponds to an arrangement of microstructures, microstructuring the first wafer by means of plasma etching the front side of the first wafer to form an arrangement of microstructures, the depth of which extends over the entire thickness of the first wafer, so that the microstructures form cavities which have an orifice on the front side and on the rear side of the first wafer respectively, removing the first etching mask from the front side of the first wafer, bonding the front side of the first wafer to a carrier substrate to form a master, electrochemically depositing a metal layer on the rear side of the first wafer and in the cavities which are present therein and are formed by the microstructures, and separating the metal layer from the master, wherein the separated metal layer can be used as a tool insert for injection molding a part.