Crystal oscillator packaging structure

The invention discloses a crystal oscillator packaging structure. The crystal oscillator packaging structure comprises a packaging base, a resonance crystal wafer and a top cover. The top of the packaging base is provided with a groove, and the side wall of the packaging base surrounds the groove. The resonance crystal wafer comprises a frame area, a U-shaped connecting area, a resonance area and a first connecting arm. The U-shaped connecting area is connected between the edge of the resonance area and the frame area, a notch of the U-shaped connecting area and two mutually perpendicular inner side walls face the resonance area, the first connecting arm is connected between the U-shaped connecting area and the frame area, and the frame area is arranged on the side wall of the packaging base. The top cover is arranged on the frame area to shield the groove, the U-shaped connecting area, the resonance area and the first connecting arm. The U-shaped connecting area is formed between the frame area and the reson