PLAs in Quantum-dot Cellular Automata

Hu, Xiaobo Sharon; Crocker, Michael; Niemier, Mike; Yan, Miu Chung; Bernstein, Gary H.

doi:10.1109/isvlsi.2006.73

Cited by 12 publications

(19 citation statements)

References 29 publications

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“…This is true for QCA circuits as well. A QCA PLA design was first detailed in Hu et al [2006] for the purpose of improving fault tolerance, especially since it could be used in conjunction with device-level fault tolerance strategies that had already been proposed for QCA circuits. In addition, the regular, repeated design of a PLA array was much preferable to custom logic in cases where a self-assembly process was involved in fabrication, such as for molecular QCA 8:4 • M. Crocker et al circuits.…”

Section: Reprogrammable Pla Cells and Array Structurementioning

confidence: 99%

“…However, QCA majority gates can be programmed to AND and OR gates without requiring any extra signal routing. Implementing NAND and NOR functionality would require more QCA inverters, therefore the QCA PLA discussed in Hu et al [2006] uses AND and OR logic.…”

Section: Reprogrammable Pla Cells and Array Structurementioning

confidence: 99%

“…A basic fault detection scheme was proposed in Hu et al [2006]. The basic idea of fault detection given for QCA-based PLAs is hierarchical in nature.…”

Section: Fault Detectionmentioning

confidence: 99%

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Defects and faults in QCA-based PLAs

Crocker

Niemier

2009

J. Emerg. Technol. Comput. Syst.

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Defect tolerance will be critical in any system with nanoscale feature sizes. This article examines some fundamental aspects of defect tolerance for a reconfigurable system based on Quantumdot Cellular Automata (QCA). We analyze a novel, QCA-based, Programmable Logic Array (PLA) structure, develop an implementation independent fault model, and discuss how expected defects and faults might affect yield. Within this context, we introduce techniques for mapping Boolean logic functions to a defective QCA-based PLA. Simulation results show that our new mapping techniques can achieve higher yields than existing techniques.

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Section: Reprogrammable Pla Cells and Array Structurementioning

confidence: 99%

Section: Reprogrammable Pla Cells and Array Structurementioning

confidence: 99%

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Defects and faults in QCA-based PLAs

Crocker

Niemier

2009

J. Emerg. Technol. Comput. Syst.

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“…For example, the PLA structure in [8] can be expanded to include more rows and columns such that defective crosspoints and/or interconnect can be avoided -increasing the probability that the desired set of logic functions can be mapped onto the faulty PLA. However, for MQCA, a larger PLA not only means a larger chip area, but also more/longer clock wires to operate the logic and interconnect.…”

Section: Defect Tolerance At the Architectural Levelmentioning

confidence: 99%

Fabrication Variations and Defect Tolerance for Nanomagnet-Based QCA

Niemier

Crocker

2008

2008 IEEE International Symposium on Defect and Fault Tolerance of VLSI Systems

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“…Several studies have been reported about QCA circuits [3][4][5][6][7][8][9][10][11][12][13][14][15]. Exclusive-OR (XOR) is the most logical gate and is widely used in many combinational and sequential logic circuits.…”

Section: Introductionmentioning

confidence: 99%

Design and Implementation of Efficient Combinational Logic Circuits with Minimum Area and Circuit Complexity Using Quantum- dot Cellular Automata (QCA)

2017

IJSR

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Quantum dot cellular automata (QCA), is a rising innovation and a possible alternative for scaling-down trend of VLSI technology. It advantages diminutive size, low power consumption, better switching speed. QCA seems to be a good competitor for future digital systems and widely utilized as a part of advance frameworks. Therefore numerous implementations of QCA based logic functions have been proposed so far. In this paper, an efficient XOR gates is presented. The model proves designing capabilities of combinational logic circuits. The proposed XOR gate has been testified to design logic circuits for QCA. Adder circuit is the most fundamental component used in digital systems. An efficient Half-Adder and Half-Subtractor circuits are designed employing the proposed XOR gate. Performance evolutions of the proposed XOR circuits are compared to its conventional counter parts. The functionality and circuit operation of the proposed designs have been authenticate used QCA Designer simulation tool Ver. 2.0.3.

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PLAs in Quantum-dot Cellular Automata

Cited by 12 publications

References 29 publications

Defects and faults in QCA-based PLAs

Defects and faults in QCA-based PLAs

Fabrication Variations and Defect Tolerance for Nanomagnet-Based QCA

Design and Implementation of Efficient Combinational Logic Circuits with Minimum Area and Circuit Complexity Using Quantum- dot Cellular Automata (QCA)

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