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Self-restoring three-mode redundancy structure for defending single-particle soft error accumulation

A three-mode redundancy and anti-single event technology, applied in the direction of reliability improvement and modification, can solve problems such as voting circuit output errors, and achieve the effect of solving reinforcement failures

Active Publication Date: 2018-05-18
BEIJING MXTRONICS CORP +1
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Problems solved by technology

[0004] Although the above-mentioned traditional three-mode redundant structure can resist single-event soft errors caused by single-particle attacks, if the circuit is not refreshed for a long time, after a soft error occurs in one of the modules, the remaining one of the modules will also be single-event-induced by single-event attacks. Particle soft error, the soft error of the two modes will cause the final output error of the voting circuit 207, thus limiting its use

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[0018] Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided for more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art. It should be noted that, in the case of no conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and examples.

[0019] figure 1 It is a schematic diagram of a three-mode redundant structure for self-healing anti-single event soft error accumulation provided by the emb...

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Abstract

The invention discloses a self-restoring three-mode redundancy structure for defending single-particle soft error accumulation. A single-particle soft error detection circuit and a data selection circuit are added to perform optimized design on a circuit, the design based on the structure can automatically restore after single-path signal overturning in the three-mode redundancy structure, and theproblem that the three-mode redundancy structure may cause single-particle reinforcement failure due to error accumulation is effectively solved.

Description

technical field [0001] The invention belongs to the technical field of semiconductor integrated circuits, in particular to a triple-mode redundant structure capable of self-recovery and anti-single event soft error accumulation. Background technique [0002] The single event effect is caused by space particles, especially high-energy particles hitting semiconductor devices, resulting in instantaneous photocurrent. The single event effect will cause the voltage disturbance of the device. When a single event attacks the storage circuit, it will cause the flip of the storage circuit, which is called a single event flip; when the single event hits the combinational logic, it will generate a transient pulse that can propagate along the combinational logic. , that is, a single-event transient, and a single-event soft error will also be caused after the single-event transient is captured by a storage unit such as a flip-flop. [0003] The commonly used structure to solve the probl...

Claims

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Application Information

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IPC IPC(8): H03K19/003
CPCH03K19/003
Inventor 刘家齐赵元富岳素格王亮李建成孙永姝王丹李东强
Owner BEIJING MXTRONICS CORP
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