A printed circuit board for use in an electronic device package such as a ball grid array package or organic chip carrier package. The composition comprises a skin conditioning agent, a viscosity enhancing agent and an oleophilic film-forming agent. The diode series comprises a plurality of serially connected diodes with the cathode of one diode connected to the anode of a subsequent diode. Ground shields are received in the conductive holder between the frame assembly and the conductive holder. Driving of the electric oil pump is controlled such that a work rate of the electric oil pump increases as a temperature of the oil supplied to the valve characteristic changing mechanism increases, or as a viscosity of the oil is reduced. Prior to completion of the cross-linking reaction the cross-linked nanoparticles are separated from the suspension.