Patent ID: 8688395
Filing Date: 2014-04-01
Classification: G01R

Abstract:
1. A method of correcting measurement errors by calculating, from a result of measuring electrical characteristics in a state in which an electronic component having arbitrary n ports including two or more ports is mounted on a test measurement jig, an estimated value of the electrical characteristics that would be obtained when measured in a state in which the electronic component is mounted on a base measurement jig, the method comprising: a first step of measuring using a measuring device the electrical characteristics in a state in which at least three first correction data obtaining samples having different electrical characteristics from each other are mounted on the base measurement jig; a second step of measuring using the measuring device the electrical characteristics in a state in which the at least three first correction data obtaining samples, at least three second correction data obtaining samples assumed to have electrical characteristics equivalent to those of the at least three first correction data obtaining samples, or at least one of a third correction data obtaining sample assumed to have electrical characteristics equivalent to those of a portion of the at least three first correction data obtaining samples and other ones of the first correction data obtaining samples are mounted on the test measurement jig; a third step of determining using the measuring device an equation that correlates, on the same electronic component, measurement values of electrical characteristics measured in a state in which the electronic component is mounted on the test measurement jig with measurement values of electrical characteristics measured in a state in which the electronic component is mounted on the base measurement jig, from a result of measurements in the first and second steps, where the equation assumes a presence of leakage signals that are directly transmitted between at least two ports of at least one of the base measurement jig and the test measurement jig without being transmitted to the electronic component connected to the two ports; a fourth step of measuring using the measuring device the electrical characteristics in a state in which an arbitrary electronic component is mounted on the test measurement jig; and a fifth step of calculating using the measuring device the electrical characteristics that would be obtained when measured in a state in which the electronic component is mounted on the base measurement jig, from a result of measurement in the fourth step by using the equation determined in the third step; wherein the equation determined in the third step is, in a relative error correction circuit network model in which identical ports are connected with each other and different ports assuming the presence of leakage signals are connected, between an S parameter at the base measurement jig and an S parameter at the test measurement jig in measurement of arbitrary n ports, a T parameter T where that is represented by using: an S parameter S an S parameter S the T parameter T