Effective reduction of threshold voltage variability and standby leakage using advanced co-implantation and laser anneal for low power applications

Autor: Ji Hye Yi, Hwa-Sung Rhee, Sun Me Lim, Moon Han Park, Hoi-sung Chung, Nae-In Lee, Yong Shik Kim, J.S. Yoon, Myung Sun Kim, Min Sun Kim, Ho Lee
Rok vydání: 2008
Předmět:
Zdroj: 2008 IEEE International Electron Devices Meeting.
DOI: 10.1109/iedm.2008.4796849
Popis: We have successfully reduced threshold voltage variation by combination of co-implantation and laser spike anneal on 45 nm low power SoC platform with conventional poly-Si/SiON gate stack. Doping profiles of CMOSFET channel is modulated through co-implantation of diffusion suppressor. We have explored the possibility of cluster carbon doping in order to minimize junction leakage degradation. Systematic junction profile design for n- and pFET enables us to reduce random dopant variation significantly without compromising standby leakage, drive current and gate oxide integrity, which finally contributes to RO ~5% performance improvement at equivalent Iddq and ensures high yield of SRAM array by reducing beta and gamma ratio variation.
Databáze: OpenAIRE