Abstract:
An article is provided, the article including a substrate having a surface with a first wettability characteristic. A nano-structure array is formed on the surface of the substrate to provide a nano-structured surface having a second wettability characteristic. A thin-layer surface coating is formed on the nano-structured surface, the thin-layer surface coating being configured to tune the nano-structured surface to a target wettability characteristic.
Abstract:
A microfluidic system comprising an integrated circuit having a bonding surface bonded to a polymeric microfluidics platform. The microfluidic system comprises one or more microfluidics devices controlled by control circuitry in the integrated circuit. At least one of the microfluidic devices comprises a MEMS actuator positioned in a MEMS layer of the integrated circuit. The MEMS layer is covered with a polymeric layer which defines the bonding surface of the integrated circuit.
Abstract:
A substrate plate (10) for at least one MEMS device (12) to be mounted thereon, the MEMS device (12) having a certain footprint on the substrate plate, and the substrate plate having a pattern (14) of electrically conductive leads to be connected to electric components (28) of the MEMS device (12), said pattern (14) forming contact pads (36, 38) within the footprint of the MEMS device (12) and comprising at least one lead structure (42) that extends on the substrate plate (10) outside of the footprint of the MEMS device (12) and connects a number of said contact pads (36) to an extra contact pad (44) said lead structure (42) being a shunt bar that interconnects a plurality of contact pads (36) of the MEMS device (12) and is arranged to be removed by means of a dicing cut (48) separating the substrate plate (10) into a plurality of chip-size units (10'), characterized in that at least a major part of said extra contact pad (44) is formed within the footprint of one of the MEMS devices (12).
Abstract:
Die Erfindung betrifft ein Verfahren zur Erzeugung eines zumindest bereichsweise lichten Zwischenraums (A) zwischen wenigstens einem ersten Element (26) und wenigstens einem zweiten Element (27) eines mikrofluidischen Bauteils (25). Bei dem Verfahren sind die Werkstoffe der Elemente (26,27) zumindest hinsichtlich einer ihrer Eigenschaften unterschiedlich, wobei in einem ersten Verfahrensschritt das erste Element (26) hergestellt und in einem zweiten Verfahrensschritt der Werkstoff des zweiten Elementes (27) dem ersten Element (26) zugeführt wird und wobei in einem dritten Verfahrensschritt das zweite Element (27) zumindest bereichsweise einer Volumenverringerung unterzogen wird, derart, dass der zumindest bereichsweise lichte Zwischenraum (A) entsteht. Dadurch wird ein Verfahren bereitgestellt, bei dem mit vergleichsweise geringem Aufwand zumindest ein Teil einer Mikrostruktur (Mikrospalt, Mikrokanal, Mikrokavität, etc.) herstellbar ist. Die Erfindung betrifft auch ein mikrofluidisches Bauteil (25), welches aufgrund seiner Ausgestaltung besonders gut mit dem erfindungsgemäßen Verfahren herstellbar ist.
Abstract:
A method of forming a suspended beam in a MEMS process is disclosed. In the process a pit (8) is etched into a substrate (5). Sacrificial material (10) is deposited in the pit (8) and on the surrounding substrate surface. The sacrificial material (10) is then removed from the surrounding substrate surface and from the periphery of the pit (8) so that there is a gap between the sacrificial material and at least two sidewalls of the pit. The sacrificial material is then heated so that it reftows such that the remaining sacrificial material contacts the sidewalls of the pit. Material for the beam (12), which is typically a metal, is then deposited on the substrate surface and the reflowed sacrificial material, and the sacrificial material is then removed to form the suspended beam. The beam could be used as the heating element in an inkjet printer.
Abstract:
A method of polymeric coating from sidewalls of en etched trench defined in silicon wafer [5] was provided The method comprises etching the wafer in a biased plasma etching chamber using 02 plasma. The chamber temperature is in the range of 90-180 deg C.