Patent ID: 7525192

Claim:
A printed circuit board (PCB) with a quartz crystal oscillator comprising: a substrate; a mounting area defined on an upper surface of the substrate for receiving the quartz crystal oscillator, a copper foil being arranged on the mounting area, and contacting the outside of the quartz crystal oscillator; two first vias, pins of the quartz crystal oscillator being inserted into the first vias; respectively two second vias connected to a ground layer of the PCB and communicating with the copper foil, for transmitting noise at the outside of the quartz crystal oscillator to the ground layer of the PCB wherein a solder mask is attached on the copper foil around each of the second vias for preventing an electrical connection between the copper foil, and a securing wire is connected to the second vias, wherein the securing wire passes over the quartz crystal oscillator, and two ends of the wire are respectively soldered to the second vias.