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Process integration technology and device characteristics of CMOS FinFET on bulk silicon substrate with sub-10 nm fin width and 20 nm gate length

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22 Author(s)
Okano, K. ; SoC Res. & Dev. Center, Toshiba Corp., Yokohama ; Izumida, T. ; Kawasaki, H. ; Kaneko, A.
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The process integration schemes for CMOS FinFET fabricated on bulk Si substrate are discussed from the viewpoints of device size scalability and short channel effect control. The trimming technique by special oxidation was applied to reduce fin width down to sub-10 nm regime. A novel punch through stopper (PTS) formation process was introduced to the bottom of the channel region to scale the gate length down to 20 nm. The combination of both process technology enables us to fabricate the smallest FinFET on bulk Si substrate reported to date

Published in:

Electron Devices Meeting, 2005. IEDM Technical Digest. IEEE International

Date of Conference:

5-5 Dec. 2005