Electric leakage detection circuit, flash memory electric leakage detection device and electric leakage detection method

Abstract

The invention discloses an electric leakage detection circuit, a flash memory electric leakage detection device and an electric leakage detection method. The electric leakage detection circuit comprises a first current mirror unit, a second current mirror unit, a reference current generation unit, a third current mirror unit and a comparison unit. The input end of the first current mirror unit serves as the input end of the electric leakage detection circuit, and the output end of the first current mirror unit is electrically connected with the input end of the second current mirror unit. Theoutput end of the second current mirror unit is electrically connected with the input end of the third current mirror unit. The input end of the reference current generation unit is electrically connected with a first power supply, and the output end of the reference current generation unit is electrically connected with the input end of the third current mirror unit. The output end of the third current mirror unit is electrically connected with a first input end of the comparison unit. A second input end of the comparison unit is used for inputting a reference signal, and the output end of the comparison unit serves as the output end of the electric leakage detection circuit. Electric leakage detection of a to-be-detected circuit is realized conveniently and efficiently.

Description

technical field [0001] Embodiments of the present invention relate to leakage detection technology, and in particular to a leakage detection circuit, a leakage detection device for a flash memory memory, and a leakage detection method. Background technique [0002] With the rapid development of semiconductor and other technologies, it plays a very important role in some precision equipment, such as leakage current detection in flash memory. Through leakage detection, bad blocks in flash memory can be marked in time to prevent data from being written into bad blocks. [0003] Since the size of the flash memory chip is getting smaller and smaller, the distance between the corresponding word line and the word line and between the word line and the substrate is also smaller. Accurate detection of electric leakage between them. Contents of the invention [0004] The invention provides a leakage detection circuit, a flash memory leakage detection device and a leakage detection ...

AI Technical Summary

Problems solved by technology

[0003] Since the size of the flash memory chip is getting smaller and smaller, the distance between the corresponding word line and the word line and between the word line and the substrate is also smaller. accurate detection of leakage current between

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