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Using multi-threshold threshold gates in RTD-based logic design: A case study

Hector Pettenghi, María J. Avedillo, José M. Quintana
2008 Microelectronics Journal  
The basic building blocks for Resonant Tunnelling Diode (RTD) logic circuits are Threshold Gates (TGs) instead of the conventional Boolean gates (AND, OR, NAND, NOR) due to the fact that, when designing  ...  This paper describes the design of n-bit adders using these MTTGs. A comparison with a design based on TGs is carried out showing advantages in terms of latency, device counts and power consumption.  ...  Threshold logic [5] is a computational model widely used in the design of RTD based circuits [4] .  ... 
doi:10.1016/j.mejo.2007.05.015 fatcat:vryivkkibfczpcpicqglwkcgzm

Improved Nanopipelined RTD Adder Using Generalized Threshold Gates

Héctor Pettenghi, María J. Avedillo, José M. Quintana
2011 IEEE transactions on nanotechnology  
Threshold logic is a computational model widely used in the design of MOBILE circuits, i.e. these circuits are built from threshold gates (TGs).  ...  1 Many logic circuit applications of Resonant Tunneling Diodes are based on the MOnostable-BIstable Logic Element (MOBILE).  ...  Acknowledgements This effort was supported by the Spanish Government under project TEC2007-67245 and Andalusian Government through project EXC/2007/TIC-2961.  ... 
doi:10.1109/tnano.2009.2035311 fatcat:x3v2k2gocbg65kwim3tea3snpy

Evaluation of MOBILE-based gate-level pipelining augmenting CMOS with RTDs

Juan Nuñez, María J. Avedillo, José M. Quintana, Teresa Riesgo, Eduardo de la Torre-Arnanz
2011 VLSI Circuits and Systems V  
The incorporation of Resonant Tunnel Diodes (RTDs) into III/V transistor technologies has shown an improved circuit performance: higher circuit speed, reduced component count, and/or lowered power consumption  ...  We compare RTD-CMOS and pure CMOS realizations of a network of logic gates which can be operated in a gate-level pipeline. Significant lower average power is obtained for RTD-CMOS implementations.  ...  ACKNOWLEDGEMENT This work has been funded in part by the Spanish Ministry of Science and Innovation with support from ERDF under Projects TEC2007-67245 and TEC2010-18937 and in part by the Consejería de  ... 
doi:10.1117/12.886816 fatcat:ignos6sgb5glfc7jmjptqpmf64

40 Gbps operation of MOBILE and its application to weighted-sum threshold logic gate using only RTDS

Hyungtate Kim, Myunghwan Park, Kwangseok Seo
2008 2008 20th International Conference on Indium Phosphide and Related Materials  
(a) Circuit configuration of MOBILE using only RTDs as active devices, (b) peak current relation and transfer characteristics of the proposed MOBILE, (c) loadline diagram of the input stage for noninverted  ...  In addition, to demonstrate the functionality and the computational capability of the proposed MOBILE configuration using only RTDs, we have designed a 2-input weighted sum Linear Threshold Gates (LTG)  ...  ACKNOWLEDGMENT This work was financially supported by the National program for Tera Level Nano Devices of the Ministry of Science and Technology as one of the 21st Century Frontier programs.  ... 
doi:10.1109/iciprm.2008.4702923 fatcat:iyc5kfuqpfajzglnd6ui25a22a

Two-Phase RTD-CMOS Pipelined Circuits

J. Nunez, M. J. Avedillo, J. M. Quintana
2012 IEEE transactions on nanotechnology  
In particular, it has been shown significant power advantages of single phase RTD-CMOS MOBILE circuits over pure CMOS.  ...  RTD-based MOBILE nanopipelined circuits have been reported using different clock schemes including a four phase strategy and a single phase clock scheme.  ...  Logic circuit applications of RTDs are mainly based on the MOnostable-BIstable Logic Element (MOBILE) [6] which exploits the NDR of their I-V characteristic (Fig. 1a) .  ... 
doi:10.1109/tnano.2012.2213839 fatcat:5gpwfhcgdbgglmkmirm2hdzwcy

Efficient realization of RTD-CMOS logic gates

Juan Núñez, María J. Avedillo, José M. Quintana
2011 Proceedings of the 21st edition of the great lakes symposium on Great lakes symposium on VLSI - GLSVLSI '11  
The incorporation of Resonant Tunnel Diodes (RTDs) into III/V transistor technologies has shown an improved circuit performance: higher circuit speed, reduced component count, and/or lowered power consumption  ...  This paper compares RTD-CMOS and pure CMOS realizations of a set of logic gates which can be operated in a gate-level nanopipelined.  ...  RTD-BASED MOBILE LOGIC GATES Logic circuit applications of RTDs are mainly based on the MOnostable-BIstable Logic Element (MOBILE) which exploits the negative differential resistance of their I-V characteristic  ... 
doi:10.1145/1973009.1973090 dblp:conf/glvlsi/NunezAQ11 fatcat:oplrwspwgnh7pptuulsdwmmtay

A novel contribution to the RTD-based threshold logic family

Hector Pettenghi, Maria J. Avedillo, Jose M. Quintana
2008 2008 IEEE International Symposium on Circuits and Systems  
Threshold logic is a computational model widely used in the design of MOBILE circuits, i.e. these circuits are built from threshold gates.  ...  1 Many logic circuit applications of Resonant Tunneling Diodes are based on the MOnostable-BIstable Logic Element (MOBILE).  ...  Circuit applications of RTDs are mainly based on the MOnostable-BIstable Logic Element (MOBILE).  ... 
doi:10.1109/iscas.2008.4541926 dblp:conf/iscas/PettenghiAQ08 fatcat:evdne4sgcre5rgqttexda2bsnm

Reconfigurable RTD-based circuit elements of complete logic functionality

Yexin Zheng, Chao Huang
2008 2008 Asia and South Pacific Design Automation Conference  
These simple RTD-based circuit elements are implemented with threshold gates (TGs) and multi-threshold threshold gates (MTTGs) by employing programmable monostable-bistable logic element (MOBILE) principles  ...  Resonant tunneling diodes (RTDs) have demonstrated promising circuit characteristics of high speed switching property and versatile functionality with negative differential resistance (NDR).  ...  Various RTD models have been proposed [4] , [5] , [6] and RTD devices and circuits have been reported working at a frequency of several GHz [7] , [8] , [9] .  ... 
doi:10.1109/aspdac.2008.4484045 dblp:conf/aspdac/ZhengH08 fatcat:ibb5jt2gjjcdzn2ohs4kmvc7i4

Two-Phase MOBILE Interconnection Schemes for Ultra-Grain Pipeline Applications [chapter]

Juan Núñez, María J. Avedillo, José M. Quintana
2013 Lecture Notes in Computer Science  
The proposed interconnection architecture is applied to the design of a 4-bit Carry Lookahead Adder.  ...  Up to our knowledge it is the first MOBILE working circuit reported with this interconnection architecture.  ...  This work has been funded by Ministerio de Economía y Competitividad del Gobierno de España with support from ERDF under Project TEC2010-18937.  ... 
doi:10.1007/978-3-642-36157-9_17 fatcat:asemtcr65fcwhattf42fxuamri

Low-power high-speed performance of current-mode logic D flip-flop topology using negative-differential-resistance devices

T. Kim, Y. Jeong, K. Yang
2008 IET Circuits, Devices & Systems  
The low-power/high-speed performance of current-mode logic (CML) D flip-flops based on negative-differential-resistance (NDR) devices is presented.  ...  The power consumption of the D flip-flop core circuit was measured to be as low as 20 mW at a power supply voltage of 23.3 V.  ...  Acknowledgment This work was supported by the National Program for Tera-level Nano-devices of the Ministry of Science and Technology of the Republic of Korea as one of the 21st Century Frontier Programs  ... 
doi:10.1049/iet-cds:20070135 fatcat:s4f2uunbu5dalkbxfhuv7i22ce

An Algorithm for Nanopipelining of RTD-Based Circuits and Architectures

P. Gupta, N.K. Jha
2005 IEEE transactions on nanotechnology  
Index Terms-Nanotechnology, nano-pipelining, resonanttunneling diodes, RTD-based circuits and architectures.  ...  Nano-pipelining is well-suited for the nanotechnology based on resonant tunneling diodes (RTDs) and offers the opportunity to obtain massive throughput and, therefore, has applications in data-intensive  ...  Designs of RTD-based arithmetic circuits are presented in [8] . A good discussion on the physical model and properties of RTDs is presented in [4] , [5] , [9] .  ... 
doi:10.1109/tnano.2004.842069 fatcat:5wzxctbqkbh3rgm72e5b3p6sd4

Device and circuit simulation of quantum electronic devices

S. Mohan, J.P. Sun, P. Mazumder, G.I. Haddad
1995 IEEE Transactions on Computer-Aided Design of Integrated Circuits and Systems  
The second version, named QSPICE (1999), was augmented with homotopy-based convergence routine, named RTD-stepping as well as a novel limiting algorithm to overcome the limitations of source stepping and  ...  The component model of NDR and QSPICE were added with a host of quantum tunneling devices, including resonant tunneling diode (RTD), bound state resonant tunneling transistor (BSRTT), resonant tunneling  ...  Yamamoto, NTT, Japan, for many conducive discussions regarding problems encountered in simulating various RTD circuits. The authors would also like to thank the creators of the SPICE simulator, Prof.  ... 
doi:10.1109/43.387727 fatcat:d3n6bcus5rc6dkzqv2lsuj6ype

Noise margins of threshold logic gates containing resonant tunneling diodes

M. Bhattacharya, P. Mazumder
2000 IEEE transactions on circuits and systems - 2, Analog and digital signal processing  
In this brief, we present an analytical study of the noise performance of these threshold gates supplemented by computer simulation results, with the objective of obtaining reliable circuit design guidelines  ...  Additionally, by virtue of being threshold logic gates, they are guaranteed to be more compact than traditional digital logic circuits, while achieving the same functionality.  ...  ACKNOWLEDGMENT The authors would like to thank Dr. M. Yamamoto of NTT System Electronics Laboratories, Japan, and Dr. S. Kulkarni of the University of Michigan.  ... 
doi:10.1109/82.877149 fatcat:kthfs7iofnagzcueofd7j32t6a

Design and characterization of the negative differential resistance circuits using the CMOS and BiCMOS process

Kwang-Jow Gan, Cher-Shiung Tsai, Dong-Shong Liang
2009 Analog Integrated Circuits and Signal Processing  
In application, we utilize the NDR circuit to design an inverter circuit based on the monostable-bistable transition logic element.  ...  We investigate four novel negative-differentialresistance (NDR) circuits using the combination of the standard Si-based n-channel metal-oxide-semiconductor field-effect-transistor (NMOS) and SiGe-based  ...  Acknowledgments This work was supported by the National Science Council of Republic of China under the contract no. NSC97-2221-E-168-045.  ... 
doi:10.1007/s10470-009-9327-5 fatcat:eepmmh4fnbckfnkxyesof45ezi

Simulator of semiconductor devices for multivalued logic

Supriya Karmakar
2020 IET Circuits, Devices & Systems  
Multivalued logic (MVL) is an effective way to increase device integration in semiconductor circuits. The major problem for MVL implementation is the availability of proper semiconductor devices.  ...  In this work, the designed graphic user interface will provide more flexibility to the user to highlight the application of different semiconductor devices for MVL implementation.  ...  This project will help to understand the device characteristics and to help to design future MVL logic circuit design.  ... 
doi:10.1049/iet-cds.2019.0415 fatcat:fqtpsbx365bglbkvn4unlui64e
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