Thickness dependent integrity of gate oxide on SOI
2003
Abstract To investigate the gate oxide integrity for the silicon-on-insulator (SOI) wafer, we evaluated the time-dependent dielectric breakdown (TDDB) characteristic of gate oxide formed on SOI wafer with gate oxide thickness ( T ox ) as a parameter. The TDDB characteristic was degraded with increasing the T ox of gate oxide for the SOI wafer. The time to 50% failure of breakdown ( T BD ) was shorter when T ox was thicker than 7 nm in contrast to the gate oxide for the bulk silicon wafer.
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