Corrected multiple upsets and bit reversals for improved 1-s resolution measurements

Journal Article · Thu Dec 01 04:00:00 EST 1994 · IEEE Transactions on Nuclear Science (Institute of Electrical and Electronics Engineers); (United States)

DOI:https://doi.org/10.1109/23.340636· OSTI ID:6653193

Brucker, G J ^[1]; Stassinopoulos, E G ^[2]; Stauffer, C A ^[3]

---

1. Brucker (G.J.), West Long Branch, NJ (United States)
2. NASA/Goddard Space Flight Center, Greenbelt, MD (United States)
3. SES, Greenbelt, MD (United States)

Previous work has studied the generation of single and multiple errors in control and irradiated static RAM samples (Harris 6504RH) which were exposed to heavy ions for relatively long intervals of time (minute), and read out only after the beam was shut off. The present investigation involved storing 4k [times] 1 bit maps every second during 1 min ion exposures at low flux rates of 10[sup 3] ions/cm[sup 2]-s in order to reduce the chance of two sequential ions upsetting adjacent bits. The data were analyzed for the presence of adjacent upset bit locations in the physical memory plane, which were previously defined to constitute multiple upsets. Improvement in the time resolution of these measurements has provided more accurate estimates of multiple upsets. The results indicate that the percentage of multiples decreased from a high of 17% in the previous experiment to less than 1% for this new experimental technique. Consecutive double and triple upsets (reversals of bits) were detected. These were caused by sequential ions hitting the same bit, with one or two reversals of state occurring in a 1-min run. In addition to these results, a status review for these same parts covering 3.5 years of imprint damage recovery is also presented.

• OSTI ID: 6653193
• Journal Information: IEEE Transactions on Nuclear Science (Institute of Electrical and Electronics Engineers); (United States), Journal Name: IEEE Transactions on Nuclear Science (Institute of Electrical and Electronics Engineers); (United States) Vol. 41:6Pt2; ISSN 0018-9499; ISSN IETNAE
• Country of Publication: United States
• Language: English

Related Subjects

440200* -- Radiation Effects on Instrument Components
Instruments
or Electronic Systems
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
ANNEALING
CHARGED PARTICLES
DATA
DATA ANALYSIS
EXPERIMENTAL DATA
HEAT TREATMENTS
HEAVY IONS
INFORMATION
IONS
MEMORY DEVICES
NUMERICAL DATA
PHYSICAL RADIATION EFFECTS
RADIATION EFFECTS