Patent ID: 11971451
Assignee: THE 13TH RESEARCH INSTITUTE OF CHINA ELECTRONICS TECHNOLOGY GROUP CORPORATION
Field: Measurement (Instruments)
Classification: CPC G | IPC G

Claim 10:
11. A method comprising:
constructing an on-wafer calibration piece model set, the on-wafer calibration piece model set comprising one or more on-wafer calibration piece models used in a Terahertz frequency band, wherein each of the one or more on-wafer calibration piece models has a corresponding on-wafer calibration piece;
selecting an on-wafer calibration piece model from the on-wafer calibration piece model set;
in the Terahertz frequency band, using a multi-thread Thru-Reflect-Line (TRL) calibration method to calibrate an on-wafer S parameter measurement system and obtaining a calibrated on-wafer S parameter measurement system, using the calibrated on-wafer S parameter measurement system to measure the on-wafer calibration piece of the selected on-wafer calibration piece model, and obtaining an S parameter of the on-wafer calibration piece;
calculating an admittance of the on-wafer calibration piece according to the S parameter of the on-wafer calibration piece;
determining, according to the on-wafer calibration piece model, an admittance formula corresponding to the on-wafer calibration piece model;
calculating, according to the admittance and the admittance formula, a target parameter in the on-wafer calibration piece model, the target parameter representing crosstalk of the on-wafer calibration piece of the selected on-wafer calibration piece model; and
calibrating, using the on-wafer calibration piece of the selected on-wafer calibration piece model having the target parameter, an on-wafer S parameter measurement system to be calibrated; and
wherein constructing the on-wafer calibration piece model set comprising:
connecting a resistor and a capacitor to an original calibration piece model of a corresponding on-wafer calibration piece model, and wherein:
both the resistor and the capacitor represent the crosstalk of the on-wafer calibration piece of the corresponding on-wafer calibration piece model;
the resistor is connected in series to a circuit including elements in the original calibration piece model;
a first end of the capacitor is connected between the resistor and a first end of the circuit including the elements in the original calibration piece model; and
a second end of the capacitor is connected to a second end of the circuit including the elements in the original calibration piece model.