4-terminal FinFETs with high threshold voltage controllability
For future ultra-low power circuit designs, flexible V/sub th/ control will inevitably be required. To meet this requirement, four-terminal (4-T) DG MOSFETs are promising, thanks to the static and/or dynamic V/sub th/ controllability by one of the double gates. Recently, we demonstrated independent...
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Published in | Conference Digest [Includes 'Late News Papers' volume] Device Research Conference, 2004. 62nd DRC pp. 207 - 208 vol.1 |
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Main Authors | , , , , , , , , |
Format | Conference Proceeding |
Language | English |
Published |
Piscataway NJ
IEEE
2004
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Subjects | |
Online Access | Get full text |
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Summary: | For future ultra-low power circuit designs, flexible V/sub th/ control will inevitably be required. To meet this requirement, four-terminal (4-T) DG MOSFETs are promising, thanks to the static and/or dynamic V/sub th/ controllability by one of the double gates. Recently, we demonstrated independent double gate FinFETs, fabricated by using orientation-dependent wet etching. This method has great advantages in forming precise Si-fins with an atomically flat channel surface. In this paper, we present the successful fabrication of the ultra-thin Si-fins by wet etching, and the fine separated double gates. We show the excellent V/sub th/ controllability of the fabricated 4-T FinFETs by reducing the Si-fin thickness (T/sub Si/) down to 13 nm. We also discuss the T/sub Si/ dependence of the V/sub th/ tunable range on the T/sub Si/. |
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ISBN: | 0780382846 9780780382848 |
ISSN: | 1548-3770 2640-6853 |
DOI: | 10.1109/DRC.2004.1367867 |