The present invention relates to a guide device comprising a baseplate unit having formed therein a guide channel for guiding electronic devices, wherein at least two portions of the baseplate unit are spatially fixed, said guide device being characterized in that means for compensating the thermal expansion of the baseplate unit are provided. The dicing die-bonding film in the present invention is a dicing die-bonding film having a pressure-sensitive adhesive layer on a base material and a die bond layer on the pressure-sensitive adhesive layer, in which the arithmetic mean roughness X on the pressure-sensitive adhesive layer side in the die bond layer is 0. The data processing apparatus is operable to form an impaired version of the material item from which a marked representation of the original material item can be formed. The caster structure may include a single caster, or a pair of casters positioned side by side on the bottom surface of the main body of the vacuum cleaner. The apparatus may also include a probe moveably coupled to the engagement device and capable of moving along a leading edge of the turbine blade to detect a surface anomaly of the turbine blade and a control device for controlling the movement of the probe along the leading edge of the turbine engine in response to user manipulation.