Apparatus and method for detecting wiring short in substrate

A method for detecting a wiring short in a substrate, the method comprising:

• capacitively coupling a plurality of electrodes to a first wiring and a second wiring of a substrate;
• applying a measurement voltage to the first wiring of the substrate;
• and
• determining whether a short circuit connection having a resistance value greater than a reference resistance value is present between the first wiring and the second wiring, based on a difference between a first time constant of an output signal at the first wiring and a second time constant of an output signal at the second wiring responsive to applying the measurement voltage.

A method for detecting a wiring short in a substrate, the method comprising

• applying a rising or falling measurement signal to a first wiring from among first and second wirings of a substrate;
• concurrently measuring response signals in first and second electrode elements capacitively coupled to the first and second wirings of the substrate, wherein the response signals are responsive to the applied measurement signal;
• and
• determining that a short circuit connection is present between the first and second wirings of the substrate according to a difference in the concurrently measured response signals in the first and second electrode elements.