A semiconductor device capable of reducing an inductance is provided. The particulate filler fluid is fed under high pressure to the mixing zone, such as to form a jet stream to entrain elastomer latex fluid sufficiently energetically to substantially completely coagulate the elastomer with the particulate filler prior to the discharge end. Indicia representing an eye is positioned adjacent at least one of the openings of the viewing device to help attract consumers to the product and to inform the consumers about the intended use of the product. Power savings are thereby achieved as compared to devices that require the pre-trigger memory to be continuously active. A surface of a portion outside the effective optical range is formed of a light-absorbing material, so that light is prevented from directly entering the lens through the communicating passage.