PROTECTIVE DEVICE OF A KEYPAD FOR AN AUTOMATIC TELLER MACHINE CAPABLE OF SENSING HACKING BY CUTTING A SPECIFIC PART OF A SENSE LINE FORMED IN A SENSE LINE PATTERNED SUBSTRATE

摘要

PURPOSE: A protective device of a keypad for an automatic teller machine is provided to increase the reliability of the protective device of keypad by laminating a mask substrate which does not transmit the light in the lower part of a sense line patterned substrate.;CONSTITUTION: A keypad printed circuit board(200) of multi-layered processes a keypad signal composed in a keypad. A sense line patterned substrate(300) is formed in the lower part of the keypad printed circuit board. The sense line is tightly patterned through the front side of the sense line patterned substrate. The sense line patterned substrate senses the hacking in the cut state of the segment of the sense line. A mask substrate(400) is laminated in the lower part of the sense line patterned substrate. The mask substrate prevents the penetration of the light about the sense line patterned substrate and keypad printed circuit board. The mask substrate is coated to material or the material which does not transmit the light.;COPYRIGHT KIPO 2010