Showing papers by "Jongwook Jeon published in 2000"
10 Dec 2000
TL;DR: Al/sub 2/O/sub 3/ (EOT=227 /spl Aring/) gate dielectric layer formed by Atomic Layer Deposition (ALD) process have been characterized for sub-100 nm CMOS devices as discussed by the authors.
Abstract: Al/sub 2/O/sub 3/ (EOT=227 /spl Aring/) gate dielectric layer formed by Atomic Layer Deposition (ALD) process have been characterized for sub-100 nm CMOS devices The gate leakage current was 3 orders of magnitude lower than that of SiO/sub 2/ and the hysteresis of C-V curve was not observed However, the negative fixed charge induced the flat band voltage (Vfb) shift and degraded the channel mobility of MOS transistor The Vfb shift was reduced and channel mobility was improved by applying P+ gate by BF/sub 2/ implantation It is suggested that the phosphorous diffused from gate polysilicon has a role of network modifier in Al/sub 2/O/sub 3/ film and formation of the Al-O- dangling bond which may be ascribed to negative fixed charge
67 citations