Abstract: In a manufacturing apparatus of printed wiring board an aperture of a nozzle pipe located in a central position is larger than that at both sides, or the aperture of the piping to the nozzle pipe in the central position is larger than that of the piping at both sides. The mutual interval is narrower with the central nozzle pipes. The interval of the individual nozzle pipes is variable, and is also variable in the vertical direction. A pressure-proof flexible tube is provided between each nozzle pipe and the pump, and the interval of the individual nozzle pipes is variable, and is also variable in the vertical direction. Further, the spray pressure, oscillating angle, and oscillating speed can be set individually in each nozzle pipe, and such setting can be automated.

Abstract: Invasion of insects into electronic appliances is prevented, nesting of insects in the electronic appliances is prevented, and these preventing actions are maintained for a long period. Further, troubles of electronic appliances due to invasion of insects are decreased. Insect control measures may be applied in all electronic appliances including small and lightweight types. It includes (a) a housing, and (b) an electronic circuit disposed in the housing. The electronic circuit includes a printed wiring board having an electronic material containing a repellent, and an electronic component mounted on the printed wiring board. The electronic material containing the repellent is paste, solder resist, parts layout, insulating resin, prepreg cured piece, resin film, or polyimide film.

Abstract: In the manufacturing apparatus of printed wiring board of the invention, the aperture of the nozzle pipe located in the central position is larger than that at both sides, or the aperture of the piping pipe to the nozzle pipe in the central position is larger than that of the piping pipes at both sides. The mutual interval is narrower in the central nozzle pipes. The interval of the individual nozzle pipes is variable, and is also variable in the vertical direction. A pressure-proof flexible tube is provided between each nozzle pipe and the pump, and the interval of the individual nozzle pipes is variable, and is also variable in the vertical direction. Further, the spray pressure, oscillating angle, and oscillating speed can be set individually in each nozzle pipe, and such setting can be automated.

Abstract: Invasion of insects into electronic appliances is prevented, nesting of insects in the electronic appliances is prevented, and these preventing actions are maintained for a long period. Further, troubles of electronic appliances due to invasion of insects are decreased. Insect control measures may be applied in all electronic appliances including small and lightweight types. It includes (a) a housing, and (b) an electronic circuit disposed in the housing. The electronic circuit includes a printed wiring board having an electronic material containing a repellent, and an electronic component mounted on the printed wiring board. The electronic material containing the repellent is paste, solder resist, parts layout, insulating resin, prepreg cured piece, resin film, or polyimide film.