Reconfigurable multi-function logic based on graphene p-n junctions

In this paper, we introduce a novel reconfigurable graphene logic based on graphene p-n junctions. In this logic device, switching is accomplished by using co-planar split gates that modulate the properties that are unique to graphene, including ambipolar conduction, electrostatic doping, and angula...

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Vydáno v:Design Automation Conference s. 883 - 888
Hlavní autoři: Tanachutiwat, Sansiri, Ji Ung Lee, Wei Wang, Chun Yung Sung
Médium: Konferenční příspěvek
Jazyk:angličtina
Vydáno: IEEE 01.06.2010
Témata:
CMOS logic circuits
Delay
Device
Doping
Electrostatics
Graphene
Logic devices
Logic Gate
p-n Junction
P-n junctions
Reconfigurable logic
Reflection
Semiconductor device modeling
Semiconductor process modeling
ISBN:9781424466771, 1424466776
ISSN:0738-100X
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Shrnutí:In this paper, we introduce a novel reconfigurable graphene logic based on graphene p-n junctions. In this logic device, switching is accomplished by using co-planar split gates that modulate the properties that are unique to graphene, including ambipolar conduction, electrostatic doping, and angular dependent carrier reflection. In addition, the use of these control gates can dynamically change the operation of the device, leading to reconfigurable multi-functional logic. A device model is derived from carrier transmission probability across the p-n junction for allowing quantitative comparison to CMOS logic. Based on this model, we show that the proposed graphene logic has significant advantages over CMOS gate in terms of delay-power product and signal restoration, while maintaining a similar footprint. Furthermore, the device utilizes a large graphene sheet with minimal patterning, allowing feasible integration with CMOS circuits, for potential CMOS-graphene hybrid circuits.
ISBN:9781424466771
1424466776
ISSN:0738-100X
DOI:10.1145/1837274.1837496