Flying probe doesn’t rely on the pin drawing fixed on fixture. Two or more probes can be installed on the surface of X-Y and move freely, the testing point can be controlled by CAD GERBER FILE. Dual probe can move within 4 mil area. Probe can move isolated, also at the same time didn’t restrict the real distance of how close they can be. Testing device with 2 moving hands is base upon capacitor, press PCB on the insulation layer of a metal sheet as the capacitor for another metal sheet. In case there is 1 wire happen to short, capacitor value will become larger then certain point; if there is a open wire, capacitor will become smaller.

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