Abstract: The present invention relates to a switch device (100) for use in hand-held power tools. The switch device (100) may include at least one chamber (102) whose interior serves as an accommodation space. The chamber (102) may partially encase an operational member (104) for actuating the hand-held power tool through the switch device (100). Further, the switch device (100) is provided with multiple holes (202) on side walls (204) of the chamber (102) to create a passageway for external particulate materials. Also, a bottom surface (205) of the chamber (102) may be sloped to extend from an interior of the chamber (102) to each of the multiple holes (202), to enhance the discharging of the external particulate materials through the holes (202).

Abstract: The present invention relates to a switch device (100) for use in hand-held power tools. The switch device (100) may include at least one chamber (102) whose interior serves as an accommodation space. The chamber (102) may partially encase an operational member (104) for actuating the hand-held power tool through the switch device (100). Further, the switch device (100) is provided with multiple holes (202) on side walls (204) of the chamber (102) to create a passageway for external particulate materials. Also, a bottom surface (205) of the chamber (102) may be sloped to extend from an interior of the chamber (102) to each of the multiple holes (202), to enhance the discharging of the external particulate materials through the holes (202).

Abstract: There are provided a sensor which is small, suitable for reflow soldering by automatic cleaning and automatic mounting, can be manufactured in batch, and has a switch function, and a manufacturing method of the sensor, and a portable telephone having the sensor built therein. There are provided a sensor having a switch function, the sensor being composed of a first substrate composed of a semiconductor by which a conducting part of the switch is formed, a second substrate composed of the semiconductor by which a conducting part of the switch is formed or an insulator by which the conducting part of the switch is formed, and a moving member having conductivity, wherein any of the first substrate and the second substrate has a cavity-shaped portion and the moving member having conductivity is confined by the first substrate and the second substrate, and a manufacturing method of the sensor, and an electronic device having the sensor built therein.

Abstract: There are provided a sensor which is small, suitable for reflow soldering by automatic cleaning and automatic mounting, can be manufactured in batch, and has a switch function, and a manufacturing method of the sensor, and a portable telephone having the sensor built therein. There are provided a sensor having a switch function, the sensor being composed of a first substrate composed of a semiconductor by which a conducting part of the switch is formed, a second substrate composed of the semiconductor by which a conducting part of the switch is formed or an insulator by which the conducting part of the switch is formed, and a moving member having conductivity, wherein any of the first substrate and the second substrate has a cavity-shaped portion and the moving member having conductivity is confined by the first substrate and the second substrate, and a manufacturing method of the sensor, and an electronic device having the sensor built therein.