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Heavy ion microscopy of single event upsets in CMOS SRAMs

Conference · · IEEE Transactions on Nuclear Science (Institute of Electrical and Electronics Engineers); (United States)
OSTI ID:6863812
; ; ;  [1];  [2]; ;  [3]
  1. Univ.-GH-Siegen (Germany)
  2. Gesellschaft fuer Schwerionenforschung mbH, Darmstadt (Germany)
  3. ESA-ESTEC, Noordwijk (Netherlands)

The single event upset (SEU) imaging has been applied at the GSI heavy ion microprobe to determine the sensitivity of integrated circuits (IC) to heavy ion irradiation. This method offers the possibility to directly image those parts of an IC which are sensitive to ion-induced malfunctions. By a 3-dimensional simulation of charge collection across p-n-micro-junctions the authors can predict SEU cross-sections. For a MHS65162 2k [times] 8bit CMOS SRAM they found two regions per bit with different sensitivity and measured a total cross-section of (71[+-]18)[mu]m[sup 2] for a bitflip per cell and simulated 60[mu]m[sup 2] with an argon beam of 1.4 MeV/nucl. (LET of 19.7 MeV/mg/cm[sup 2]).

OSTI ID:
6863812
Report Number(s):
CONF-930953--
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. 41:3Pt1; ISSN 0018-9499; ISSN IETNAE
Country of Publication:
United States
Language:
English

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