| abstract |
According to an embodiment of the present invention, a fine particle collecting unit for collecting fine particles; and a processor for receiving a detection signal from the fine particle collecting unit and matching the information of the fine particles collected from the sensing signal, wherein the fine particle collecting unit includes at least two conductor layers having different shapes on a plane and the A particle trapping device is provided, comprising an insulator layer provided between at least two conductive layers to expose at least a portion of the conductive layers. |