Patent ID: 6075377
Filing Date: 2000-06-13
Classification: G01R

Abstract:
A testing method for confirming a connecting state of a signal terminal provided in a semiconductor device and to be tested, comprising the steps of:grounding a power source terminal of said semiconductor device through a GND terminal of said semiconductor device and applying a bias voltage lower than a first value to other signal terminals provided in said semiconductor device than said signal terminal to be tested;externally applying a voltage to said signal terminal to be tested through a resistor;measuring a voltage at said signal terminal to be tested;judging said signal terminal to be tested as being opened or connected normally when the voltage value measured at said signal terminal to be tested is equal to or larger than said first value and judging said signal terminal to be tested as being short-circuited to said GND terminal, said power source terminal or said other signal terminals when the voltage measured at said signal terminal to be tested is smaller than the first value.