Heavy ion SEU immunity of a GaAs complementary HIGFET circuit fabricated on a low temperature grown buffer layer

Naval Res. Lab., Washington, DC
IEEE Transactions on Nuclear Science (Impact Factor: 1.46). 01/1996; DOI: 10.1109/23.489226
Source: IEEE Xplore

ABSTRACT We compare dynamic SEU characteristics of GaAs complementary
HIGFET devices fabricated on conventional semi-insulating substrates
versus low temperature grown GaAs (LT GaAs) buffer layers. Heavy ion
test results on shift register and flip-flop devices from the same
process lot demonstrate that the LT GaAs layer provides immunity from
upsets, even at an LET value of 90 MeV·cm2/mg. This
result is also consistent with pulsed laser measurements performed on
the same flip-flop circuits used in the ion test