Patent ID: 9411000
Filing Date: 2016-08-09
CPC Classification: G01B,G01R

Claim Text:
1. A method for measuring a capacitance difference (ΔC) between a first capacitive element (DUT 1 ) and a second element (DUT 2 ), the method comprising the steps of: providing a first DC voltage (Vhigh), a second DC voltage (Vlow) which is different from the first DC voltage, and a third DC voltage (GND); providing a measurement circuit comprising: connecting the first capacitive element (DUT connecting the second capacitive element (DUT in a first phase: in a second phase: applying the first and second DC voltages (Vhigh, Vlow) alternatingly to the first and third nodes (N alternately closing the first and second switches (T determining the capacitance difference (ΔC) between the first and second capacitive element (DUT