Abstract: The present invention relates to a cleaning apparatus and method of circuit boards by making use of insulating liquids and, more particularly, to the cleaning apparatus of live circuit-boards in advanced electronic and communication devices, while the power is on, by specially prepared cleaning liquid. The invention provides a safe eliminating method of micro dust particles from sensitive circuit boards. The apparatus includes a can filled with specially prepared cleaning liquid, a spray device attached to the aforementioned can, and an adsorption pad placed under the aforementioned circuit boards in the advanced electronic and communication devices. The aforementioned spray device sprays the specially prepared cleaning liquid over the circuit board with the spraying pressure of 5 kgf/cm2 or more. The specially prepared cleaning liquid collects micro dust particles on the circuit boards while it runs down the surface of the circuit board.

Abstract: The present invention relates to an apparatus for generating flames and more particularly to the microwave plasma burner for generation of high-temperature plasma flame by injecting gaseous, liquid or solid-powder hydrocarbon-fuels into plasma generated by microwaves. The invention provides a compact and portable apparatus for generating plasma flame. The apparatus includes a magnetron, an electrical power supplier, a waveguide system, a microwave power monitering system, stub tuners, a discharge tube, a gas supply system, a plasma ignitor and a fuel supply system. The method and apparatus is described for generation of a large volume of high-temperature plasma by injecting gaseous, liquid or solid-powder hydrocarbon-fuels into the microwave plasma torch to decompose the hydrogen and carbon containing fuels, and to mix the resultant gaseous hydrogen and carbon compounds with air or oxygen gas, instantaneously generating a large volume of high-temperature flames.

Abstract: The present invention relates to a synthesis method of carbon nanotubes, and more particularly to an apparatus for a mass synthesis of carbon nanotubes in gas phase using an atmospheric-pressure microwave plasma torch. The method and apparatus is described for the continuous production of carbon nanotubes by making use of a microwave plasma torch operated at a frequency of 2.45 GHz, by introducing a transition metal catalyst precursor and a carbon containing gas into the microwave plasma torch to produce atomized catalyst metal and to decompose the carbon containing gas, by passing the resulting gaseous mixtures through a furnace, and by quenching rapidly and collecting the products so formed at the exit of the furnace. The resultant products are the carbon nanotubes.