Abstract:
The present invention relates to a micropump which is driven by movement of a liquid drop based upon continuous electrowetting actuation. The continuous electrowetting means a phenomenon that the liquid drop moves as the surface tension of the liquid drop is electrically varied in succession. When a tube in which electrolyte and a liquid metal drop are inserted is applied with voltage having periodically changing polarity via metal electrodes, the surface tension of the liquid metal is varied so that the liquid metal drop reciprocates in the tube generating pressure or force, which is used as a driving force of the micropump. The micropump is operated in a low voltage and consumes a small amount of electric power.
Abstract:
커패시터용 전극층과 커패시터용 전극층의 제조방법, 그 전극층을 이용한 단위센서 및 그 단위센서를 이용한 촉각센서에 관하여 개시한다. 본 발명의 전극층은 폴리머 기판과; 폴리머 기판 상에 형성되는 전극 및 신호 전달선이 구비되는 것을 특징으로 한다. 본 발명의 단위센서는 상술한 전극층으로 이루어진 상부 및 하부 전극층과; 폴리머로 이루어진 스페이서층이 구비되는 것을 특징으로 한다. 본 발명에 의하면, 유연성이 뛰어나고 제조가 용이하며, 확장이 용이한 센서를 구현할 수 있다. 커패시터, 전극층, 단위센서, 촉각센서, 폴리머, 유연성
Abstract:
Disclosed is a micromirror actuator having a two-axis freedom and actuated by an electromagnetic force and fabrication method thereof. The micromirror actuator includes a substrate, a frame configured to be connected with the substrate, a micromirror configured to be connected with the frame, first and second torsion bars connecting the substrate with the frame, third and fourth torsion bars connecting the frame with the micromirror, four interdigitated cantilevers configured to be connected to the substrate, four connecting bars connecting the four interdigitated cantilevers with the frame, interconnection lines formed on the four interdigitated cantilevers and the micromirror, and first and second magnets installed outside the substrate. Since the micromirror actuator of the present invention can be actuated around two axes by electromagnetic force generated by electromagnetic field applied from outside, it is possible to obtain large force and large rotational angle. In addition, the micromirror actuator has a mechanically robust structure endurable against external impact, and is operable at a low voltage of 5V or loss. Further, it is possible to obtain a flat mirror surface sine the upper silicon layer of the SOI substrate is used as the mirror surface.
Abstract:
본 발명은 미소 유체 칩(Microfluidic Chip)에 관한 것으로, 더욱 상세하게는 고속 스크리닝(High-throughput Screening) 또는 고속 분석(High-throughput Assay)을 위한 미소 유체 칩의 구조를 개선하여 고속 스크리닝 또는 고속 분석의 효율을 증대시킬 수 있는 미소 유체 칩에 관한 것이다. 본 발명에 따른, 고속 스크리닝 또는 고속 분석을 위한 미소 유체 칩은 1차원 또는 2차원으로 배열되며 시료를 고립시키기 위한 웰(Well)들; 상기 웰들 상단에 위치되며, 상하로 이동이 가능한 시료 고립 수단; 상기 시료 고립 수단의 상단부에 위치되며, 상기 시료 고립 수단을 상하로 이동시키기 위한 개폐 수단; 상기 시료가 주입되는 입구 및 상기 주입된 시료의 여분이 배출되는 출구; 및 상기 웰들 내에 시약이 주입되는 시약 주입로 및 상기 시약이 배출되는 시약 배출로를 포함하는 것을 특징으로 한다. 고속 스크리닝(High-throughput Screening), 고속 분석(High-throughput Assay), 이중전기이동(dielectrophoresis), 미소웰 어레이(micro-well array), MEMS(Microelectromechanical Systems),
Abstract:
A micro-fluidic chip comprises a well for isolating a specimen, the well being arranged in a one- or two-dimension; a specimen-isolating device disposed above the well; an opening and closing device; an inlet for injection the specimen and an outlet for discharging an excess of the injected specimen; and a reagent-injecting passage for injecting a reagent and a reagent-discharging passage for discharging the reagent. A micro-fluidic chip comprises a well (10) for isolating a specimen, the well being arranged in a one- or two-dimension; a specimen-isolating device (20) disposed above the well and movable upwards and downwards; an opening and closing device (30) disposed above the specimen-isolating device and for moving the specimen-isolating device upwards and downwards; an inlet (40) for injection the specimen and an outlet (50) for discharging an excess of the injected specimen; and a reagent-injecting passage for injecting a reagent and a reagent-discharging passage for discharging the reagent.
Abstract:
PURPOSE: A micromirror driver driven by electromagnetic force and a method for manufacturing the same are provided to drive a micromirror centering on two axes by electromagnetic force generated by using an electromagnetic field, thereby obtaining large force and large revolving angle. CONSTITUTION: If a current is applied to the first to fourth leading wires(510,520,530,540), electromagnetic force generated by the current flowing in the first leading wire and the second leading wire is in an opposite direction of electromagnetic force generated by the current flowing in the third leading wire and the fourth leading wire, thereby a micromirror(300) revolves centering on first and second torsion bars. If a current is applied to fifth and sixth leading wires(610,620), electromagnetic force generated by the current flowing in the fifth leading wire is in an opposite direction of electromagnetic force generated by the current flowing in the sixth leading wire, thereby the micromirror revolves centering on third and fourth torsion bars.
Abstract:
PURPOSE: A micro-pump is provided to allow the micro-pump to be driven at a low voltage and reduce power consumption, while permitting the flexible films blocking both ends of the electrolyte storage tube to be bent in a significantly large degree. CONSTITUTION: A micro-pump comprises a storage tube(10); an electrolytic liquid(20) filling the storage tube; a liquid droplet(30) contained in the electrolytic liquid; metallic electrodes(40,45) arranged at both sides of the liquid droplet, such that the liquid droplet reciprocates within the storage tube; a voltage source for applying voltage to the space between the metallic electrodes; mesh-shaped structures(50,55) arranged between the liquid droplet and the metallic electrodes so as to prevent reaction occurring between the liquid droplet and the metallic electrodes; flexible films(60,65) blocking both ends of the storage tube; fluid passage tubes(70,80) contacting the flexible films so as to provide a path for passage of the pumped fluid, wherein each of the fluid passage tubes has an inlet and an outlet for passage of the pumped fluid; and check valves(71,72,81,82) arranged within the fluid passage tubes, respectively, so as to prevent backflow of the pumped fluid in the fluid passage tubes.