An objective of this invention is to provide an epoxy resin composition for encapsulating a semiconductor chip, which is excellent in flowability and moldability without deterioration in crack resistance during soldering and flame retardance. The printer includes a frame, a device, mounted to the frame, having a number of perforations arranged to form the pattern, a support apparatus, coupled to the frame, that supports the substrate in a printing position beneath the device, and a material dispenser. Each of the pipeline stages includes a control circuit, a latch circuit configured to latch data responsive to an indication from the control circuit, and a combinational logic circuit coupled to receive data from an output of the latch circuit. A voltage regulator is electrically coupled to the first and second electrode arrays to apply a voltage differential between the electrode arrays that creates an air flow within the air duct drawing air into the air intake and out of the exhaust vent. The Boolean expression allows Invoke to be very versatile with respect to the possible combination of events for CWS invocation. Also in that case, the phases of both clocks are equal to each other.