Hot carrier lifetime, gate oxide integrity, and radiation response of a 5 nm nitrided gate oxide were evaluated for 0.25 /spl mu/m SOI CMOS devices intended for use in 2.5 V applications and high radiation environments. The devices were fabricated in a new SOI substrate called UNIBOND-170. It is found that the DC hot electron lifetime of the devices exceed 10 years at the operating voltage. Good gate oxide integrity and radiation hardening up to 1 Mrad are shown to make this technology promising for radiation-hard ULSI applications.
Published in:
Nuclear Science, IEEE Transactions on
(Volume:46
,
Issue:
6
)
Date of Publication: Dec. 1999