Abstract:
It is an object of this invention to prevent a resistor material and an electrode material from diffusing and suppress variation in electric resistance. In a device including a plurality of metal layers of different compositions on a substrate and a second structure made of a material, such as glass paste, requiring a firing process at the time of formation, an intermediate layer is formed between a first metal layer and a second metal layer forming the first structure. The intermediate layer is of an intermetallic compound including one or more metallic elements in the first metal layer and one or more metallic elements in the second metal layer. The melting point of the intermetallic compound is higher than a firing temperature when the second structure is formed, and the intermetallic compound is produced at a temperature higher than the firing temperature for forming the second structure.
Abstract:
The invention concerns the production of segmented nanowires and components having said segmented nanowires.For the production of the nanowire structural element, a template based process is used preferably, wherein the electrochemical deposition of the nanowires in nanopores is carried out. In this manner, numerous nanowires are created in the template foil.For the electrochemical deposition of the nanowires, a reversed pulse procedure with an alternating sequence consisting of cathodic deposition pulses and anodic counter-pulses is carried out. By this means, segmented nanowires can be produced.
Abstract:
The present invention relates to a three dimensional (or 3D) microfluidic system comprising a plurality of layers stacked upon each other, characterised in that at least one of said layers consists of a 1st and at least one 2nd parts, distinct from each other, with the 2nd part being porous and wettable by a solution of interest, nesting into a recess of the 1st part being non-porous and/or non-wettable by said solution of interest, wherein said system can possibly have a built-in reservoir; a method for manufacturing the same and different uses thereof.
Abstract:
Embodiments of methods for sealing a glass microstructure assembly comprise providing one or more side retainer members on a base plate adjacent the glass microstructure assembly, the side retainer members having a height less than an uncompressed height defined by the glass microstructure assembly. The methods also comprise compressing the glass microstructure assembly via a load bearing top plate in intimate contact with the top glass layer while heating the glass microstructure assembly and the top plate to a glass sealing temperature, the glass sealing temperature being a temperature sufficient to make glass viscous, wherein the glass microstructure assembly is compressed until the load bearing top plate contacts the side retainer members, and wherein the lower surface of the top plate maintains adhesion to the upper surface of the top glass layer at the glass sealing temperature while the load bearing plate is supported by the side retainer members.
Abstract:
A micro rotary machine may include a micro actuator and a micro shaft coupled to the micro actuator. The micro shaft comprises a horizontal shaft and is operable to be rotated by the micro actuator. A micro tool is coupled to the micro shaft and is operable to perform work in response to motion of the micro shaft.
Abstract:
The present invention relates to a channel structure for a bioreactor, biochemical reactor, chemical reactor or a reformer comprising a plurality of individual layers stacked on one another and having a respective plurality of openings which pass completely through the respective individual layer and which are characterized in that at least two directly adjacent individual layers each have at least one layer section whose openings are arranged in the form of a pattern respectively regular in two dimensions and in that at least two of the layer sections provided with such a pattern in this manner of directly adjacent individual layers overlap at least in part, wherein the openings of the two at least partly overlapping layer sections are rotated and/or offset with respect to one another in the overlap region.
Abstract:
A micro rotary machine may include a micro actuator and a micro shaft coupled to the micro actuator. The micro shaft comprises a horizontal shaft and is operable to be rotated by the micro actuator. A micro tool is coupled to the micro shaft and is operable to perform work in response to motion of the micro shaft.
Abstract:
Materials and Methods are provided for fabricating microfluidic devices. The materials include low surface energy fluoropolymer compositions having multiple cure functional groups. The materials can include multiple photocurable and/or thermal-curable functional groups such that laminate devices can be fabricated. The materials also substantially do not swell in the presence of hydrocarbon solvents.
Abstract:
The present invention provides a process for producing a stamp for hot embossing (HE). The stamp can be constructed from any photo-resist epoxy that is stable at temperatures equal to the glass transition temperature (Tg) of the material to be stamped. The stamp can be used repeatedly without significant distortion of features. The stamp benefits from low relative cost, high fidelity of features in all three-dimensions and fast construction. The process for producing a stamp for hot embossing from a resist, comprising the steps of producing a seed layer L1 from a selected photoresist polymer material, soft baking the seed layer L1, exposing said seed layer L1 to initiate cross-linking and then post-exposure bake L1 to fully cross-link it, coating the cross-linked seed layer L1 with a second photoresist polymer layer L2; soft baking the second photoresist polymer layer L2; applying a mask to the top surface of the soft baked layer L2 and illuminating the unmasked portions of the soft baked layer L2 with UV radiation through the mask, wherein the exposed areas form the pattern of the embossing features, washing away un-exposed regions of the photoresist with a developer to leave behind a relief pattern formed in the second photoresist polymer layer L2, which relief pattern corresponds to a pattern in the mask.
Abstract:
The invention concerns a nanowire structural element which is suited for implementation in, for example, a microreactor system or microcatalyzer system.For the production of the nanowire structural element, a template based process is used wherein the electrochemical deposition of the nanowires in nanopores is ideally carried out at least until caps are formed and said caps ideally are at least partially merged together. After reinforcing the two cover layers the structured hollow chamber between the two cover layers is cleared by dissolving the template foil and removing the dissolved template material, wherein the two cover layers remain intact. In this manner, a stable sandwich-like nanostructure is constructed with a two-dimensional hollow chamber-like structure in the plane parallel to the cover layers contained on both sides by the cover layers and permeated in a column-like manner with nanowires.