A safety arrangement for a utility lighter includes a stop post extended from a pusher button and a locking member which includes a switching member slidably mounted on a sidewall of the casing along a safety slot and a stopper extended from the switching member to the internal cavity through the safety slot to align with the stop post. A substantially belt-shaped crystal is formed which is crystallized so as to grow crystal grains in a direction substantially parallel to a scanning direction of a CW laser beam by scanning the CW laser beam along the substrate, thereby irradiating the CW laser beam on portions of the polycrystalline semiconductor thin film formed onto the substrate. The output stage provides inverting and non-inverting differential output signals on inverting and non-inverting output nodes. The ceramic plug and other ceramic components may be manufactured using relatively simple machining techniques to reduce the overall production costs. The base sub-assembly includes a base surface over which the puck moves, a position detector that measures the position of the puck in the puck field of motion, and an attachment mechanism.