Patent ID: 8395401
Filing Date: 2013-03-12
Classification: G01R

Abstract:
1. A method for setting contact parameters for a relative movement between an electrode pad of a device formed on a semiconductor wafer and a plurality of probes in order to perform an electrical property test through an electrical contact between the electrode pad of the device and the plurality of probes, the method comprising: providing a coordinate graph comprising a first axis indicating a time that an upper surface of the electrode pad of a device moves and a second axis indicating a height of the upper surface of the electrode pad of a device on a display screen of the computer, the coordinate graph being a simulation result of an entire contact process of the electrode pad of a device and at least one of the plurality of probes; providing at least one table at the same display screen of the computer indicating the simulation result corresponding to the coordinate graph including at least one of the height of the upper surface of the electrode pad of a device and a moving speed of the upper surface of the electrode pad of a device as the contact parameters; and receiving a signal input from an operator specifying a plurality of points on the coordinate graph on the display screen of the computer, each of the plurality of points indicates the height of the upper surface of the electrode pad of a device on the second axis and the time that the upper surface of the electrode pad of a device moves to reach the height on the second axis; and displaying a broken-line graph through connecting the specified plurality of points on the coordinate graph with straight-lines along with specified values corresponding to the specified plurality of points on the table on the same screen, thereby allowing the operator to set the contact parameters.