Current monitoring device and method for CMOS device

Abstract

A current monitoring device of a CMOS device comprises the CMOS device, a current monitoring module, a power supply module and a control module, wherein the control module is connected with the powersupply module and the current monitoring module at the same time, and the power supply module is connected with the CMOS device through the current monitoring module; the power supply module suppliespower to the CMOS device through the current monitoring module; the current monitoring module monitors the supply current in the working state of the CMOS device in real time and sends the monitoringresult to the control module; and when the monitoring result is abnormal, the control module controls the power supply module to stop supplying power. According to the current monitoring device and the method for the CMOS device, the current of the CMOS device can be conveniently and accurately monitored in real time, and a reference basis is provided for stable work of the CMOS device and even chip design and process improvement.

Description

technical field [0001] The invention relates to the field of integrated circuit testing, in particular to a current monitoring device and method for a CMOS device. Background technique [0002] Each CMOS device in the integrated circuit usually uses the control module to control the power supply module to supply power to the CMOS device during the working process. However, during the working process of the CMOS device, there is no effective device or method to monitor its working status, and it usually needs to wait until the CMOS device outputs After the results are obtained, the work status can be judged according to the results. [0003] Due to the large number of applications of CMOS devices and the uncertainty of environmental parameters, their working status will also be affected. If the current of the CMOS device changes greatly due to changes in the external environment and its own configuration during its work , if the working current in the CMOS device increases s...

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Problems solved by technology

[0002] Each CMOS device in the integrated circuit usually uses the control module to control the power supply module to supply power to the CMOS device during the working process. However, during the working process of the CMOS device, there is no effective device or method to monitor its working status, and it usually needs to wait until the CMOS device outputs After the results are obtained, the work status can be judged according to the results

[0003] Due to the large number of applications of CMOS devices and the uncertainty of environmental parameters, their working status will also be affected. If the current of the CMOS device changes greatly due to changes in the external environment and its own configuration during its work , if the working current in the CMOS device increases sharply, the power consumption of the CMOS device will increase and seriously affect the life of the CMOS device, and it will burn the CMOS device or even damage the entire application system. Therefore, the DC parameters of the CMOS device, especially the current parameters Monitoring is becoming more and more important

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