Patent ID: 9213060
Filing Date: 2015-12-15
Classification: G01R

Abstract:
1. A test structure comprising: first, second, third and fourth probe pads, the first probe pad being connected to ground; a comb-like structure including a plurality of grounded tines and connected to the first probe pad; a plurality of floating tines, each floating tine provided in between the grounded tines and each floating tine connected together between the second and third probe pads; a plurality of switching devices, each switching device connected to an end portion of each floating tine and connecting the floating tines to the second and third probe pads, such that each floating tine is connected to switching device at both ends thereof, so as to form a serpentine-like structure of serially connected floating tines between the second and third probe pads; and the fourth probe pad being a control pad connected to the plurality of switching devices, which controls on and off states of the switching devices during testing.