A method for automatically assessing interest in a displayed product is provided. The EDM module includes an electrode, a providing part, an electrode guide and a retrieving part. The capacitor is charged by the difference in electric potential between the first reference voltage and an output voltage from the regular reflection light receiving unit. A preformed one-piece integrated mold cap and heatspreader assembly attached to the substrate to enclose at least a portion of the bonding wires and the die. The component may also include a number of turbulators disposed on at least one of the inner and outer portions of the wall. A first adhesion tape is attached to the planar support layer.