Patent ID: 7630183

Claim:
An electrostatic discharge (ESD) inducing apparatus in a mobile communication terminal with a fingerprint recognition function, comprising: a fingerprint recognizing device to obtain fingerprint information by contacting with a fingerprint of a human finger, the fingerprint recognizing device being provided on one side of the mobile communication terminal; a printed circuit board provided with a mounting device contacting with the fingerprint recognizing device to receive the fingerprint information from the fingerprint recognizing device, the mounting device comprising a plurality of contact balls on the printed circuit board; and a ground device to induce a static electricity caused by contacting with the fingerprint, the ground device being provided to the printed circuit board adjacent to the mounting device, wherein the ground device comprises a patterned thin film disposed on the printed circuit board, and the patterned thin film includes: an ESD ground pad located proximate to the mounting device of the printed circuit board, and a plurality of protection pads projecting from the ESD ground pad toward the contact balls of the mounting device to induce the ESD from the fingerprint recognizing device to the ground pad, wherein a first protection pad comprises a body portion and an expand portion attached to the body portion, wherein the body portion comprises a proximal end and a distal end, wherein the body portion is tapered along a direction from the proximal end to the distal end, and wherein the expanded portion is attached to the distal end.