soft error


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soft error

[′sȯft ′er·ər]
(computer science)
An error that occurs in automatic operations but does not recur when the operation is attempted a second time.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.

soft error

A temporary disruption of a memory cell that causes its content to change from 0 to 1 or 1 to 0. The cause may be radioactive decay within the chip itself or cosmic rays from outer space. Without error correction built into the hardware, a soft error within a string of data may go unnoticed, unless financial amounts are involved. If an instruction resides in the faulty cell, or if the cell contains codes and settings used by the software, the program may crash or produce erroneous results. The remedy for soft errors is a cold boot. Contrast with hard error. See cold boot, parity checking and ECC memory.
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References in periodicals archive ?
Observing (3), (5), and (8), the reliability of data transfer between any two sensor nodes within one hop is determined by the soft error rate induced by the cosmic ray radiation, bit error rate induced by the on chip thermal noise, and error probability of one-hop transmission as shown in Figure 2.
First of all, the higher integration density and lower voltage/current thresholds have increased the likelihood of soft errors [2, 3].
Therefore, transient effects can induce a type of errors named after soft errors. The examples of transient effects are disruptions caused by high radiation dose (dose-rate effects) or by heavy charged particle passing through a component (single event upsets--SEU) [5, 6].
Xilinx quality report for Q2 2011 states that soft error rate for block ram (internal SRAM memory Spartan 6 family is 381 FIT/Mb.
It maintains a history of every soft error it encounters, so that if a sector appears to be going bad, Disk Technician will move the data while it is still recoverable.
(1) Soft error Unlike a hard error, which is a fault that causes permanent malfunctioning of a semiconductor device, a soft error is a temporary error that disappears as soon as the semiconductor device concerned is restarted or the data concerned are overwritten.
Baumann, "Soft errors in advanced semiconductor devices-part I: the three radiation sources," IEEE Transactions on Device and Materials Reliability, vol.
The main objective of developing ACPC is to protect the configuration memory from soft error. ACPC is used to mount custom architectures of internal configuration access port (ICAP) intellectual property is proposed.
[18] Martinez-Alvarez A, Restrepo-Calle F, Cuenca-Asensi S, et al., "A Hardware-Software Approach for On-line Soft Error Mitigation in Interrupt-Driven Applications[J]," IEEE Transactions on Dependable & Secure Computing, 502-508, 2016.
It delivers a full TCAD-to-signoff flow for vertical markets including: displays, power electronics, optical devices, radiation and soft error reliability and advanced CMOS process and IP development.
Tahoori, "Soft error hardening for logic-level designs," in Proceedings of the IEEE International Symposium on Circuits and Systems(ISCAS '06), pp.