A method of fabricating a semiconductor device is illustrated. The method for continuously separating aromatic dialdehyde includes the steps of congealing aromatic dialdehyde by cooling the gas-phase reaction mixture including the aromatic dialdehyde, which is obtained by gas-phase oxidation of dimethylbenzene, to 5-70\xb0 C. Each identified sequence includes a plurality of terms. The fluid unit is provided adjacent to an end plate. The push rod can move toward the resilient elements and compress them when the bowstring engages the engagement element.