Test method for carrying out single particle effect evaluation for application reinforcing device

Abstract

The invention relates to a test method for carrying out single particle effect evaluation for an application reinforcing device, particularly relates to an application reinforcing device single particle effect evaluation test method in combination with the space environment and belongs to the particle irradiation test technology field. The application reinforcing effects of EDAC, TMR and timing refreshing adopted by the device can be more accurately tested. After continuous irradiation for the device to the certain amount, e.g., 107ions / cm<2>, statistics of the single particle effect number iscarried out, effectiveness of reinforcing measures and correlativity of the incident particle cumulative fluence in the reinforcing error correction period are considered, in combination with actualapplication conditions of the device and the on-orbit space environmental conditions, the single irradiation fluence is set, irradiation stops whenever the irradiation fluence is realized, and the application reinforcing device is configured to be in an initial state to continue the test. The method is advantaged in that a problem of the severely-underestimated application reinforcing effect caused by abnormal single particle false accumulation because of the overlarge ground test accumulation fluence in the prior art is solved.

Description

technical field [0001] The invention relates to a test method for evaluating the single event effect of an application-hardened device, in particular to a test method for evaluating the single-event effect of an application-hardened device combined with the space environment, which belongs to the technical field of particle radiation testing and is suitable for using EDAC (Error Detection And Correction), TMR (Triple Modular Redundancy), timed refresh and other reinforcement measures applied to the single event effect detection of the device. Background technique [0002] With the improvement of satellite model performance indicators and the increasing pressure of micro-satellite cost control, more and more high-performance commercial devices are applied to satellite model missions. Most of these high-performance commercial devices are not designed for anti-single event upset, which is prone to single event upset in orbit. When satellite models use these single-event upset-...

AI Technical Summary

Problems solved by technology

[0007] EDAC can only correct errors in areas that have been read, and cannot correct errors that have not been read. If the ground test fluence rate is too high and the cumulative fluence is too large, before reading, two bits of a certain bit have flipped, and the Unable to correct errors; as long as two errors do not occur at the same time in TMR, the error of the faulty module can be covered up to ensure the correct output of the system. Error correction; the fluence rate of space high-energy particles is generally 0-10ions / cm 2 .s, the timing refresh frequency suitable for space use, often appears too low in ground simulation tests, and has accumulated a lot of errors before it can be refreshed in time

[0008] To sum up, the commonly used ground simulation test method, due to the difference between the fluence rate, the total fluence and the on-orbit situation, makes the test results inaccurate and often seriously underestimates the effect of applied reinforcement

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