Patent ID: 6657452
Filing Date: 2003-12-02
Classification: G01R

Abstract:
A configuration for measuring an internal voltage in an integrated semiconductor apparatus, which comprises:a tester having a voltage generator supplying a reference voltage; and a plurality of semiconductor apparatuses, each one of said plurality of semiconductor apparatuses having a respective internal voltage to be measured and a comparator with a first input, a second input, and an output, said first input of said comparator of each one of said plurality of semiconductor apparatuses having the respective internal voltage to be measured applied thereto, said second input of said comparator of each one of said plurality of semiconductor apparatuses connected to said voltage generator of said tester for receiving the reference voltage, said output of said comparator of each one of said plurality of semiconductor apparatuses connected to said tester; said tester disposed external from each one of said plurality of semiconductor apparatuses and configured to determine whether the internal voltage of each one of said plurality of semiconductor apparatuses matches or does not match the reference voltage; and said voltage generator of said tester supplying the reference voltage to said comparator of each one of said plurality of semiconductor apparatuses in discrete voltage steps; said tester having a plurality of input channels; said output of said comparator of each one of said plurality of semiconductor apparatuses being connected to a respective one of said plurality of input channels; and said tester supplying the reference voltage to each one of said plurality of semiconductor apparatuses in parallel.