An automated unique tagging system using CMOS process variation

Dell, Brandon L.; Bolus, Jonathan F.; Blalock, Travis N.

doi:10.1145/1228784.1228840

Cited by 2 publications

(2 citation statements)

References 6 publications

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“…However, for such systems, wireless communication is frequently the largest energy consumer, so any reduction in transmitted data directly improves system performance. It has been observed that prior knowledge of which bits are unreliable can be used to increase the accuracy of identification [15,18], and that the reliability of individual bits can be determined by examining the magnitude of the underlying variation [17].…”

Section: System Overview and Designmentioning

confidence: 99%

39 fJ/bit On-Chip Identification ofWireless Sensors Based on Manufacturing Variation

Bolus

Calhoun

Blalock

2014

JLPEA

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A 39 fJ/bit IC identification system based on FET mismatch is presented and implemented in a 130 nm CMOS process. ID bits are generated based on the ∆V T between identically drawn NMOS devices due to manufacturing variation, and the ID cell structure allows for the characterization of ID bit reliability by characterizing ∆V T. An addressing scheme is also presented that allows for reliable on-chip identification of ICs in the presence of unreliable ID bits. An example implementation is presented that can address 1000 unique ICs, composed of 31 ID bits and having an error rate less than 10 −6 , with up to 21 unreliable bits.

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Section: System Overview and Designmentioning

confidence: 99%

39 fJ/bit On-Chip Identification ofWireless Sensors Based on Manufacturing Variation

Bolus

Calhoun

Blalock

2014

JLPEA

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“…This reduces the amount of data that needs to be transmitted, and thus the energy consumption of the sensor. It has been observed that prior knowledge of which bits are unreliable can be used to increase the accuracy of identification [35] [41], and this system is novel in its ability to characterize the value and reliability of each random bit using only two read operations. It does this by examining the amount of manufacturing variation on which each bit is based, and determining if it is large enough to outweigh the effects of electrical noise.…”

Section: Previous Workmentioning

confidence: 99%

Design of mm-Sized Wirelessly Powered Sensors

Bolus

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This work presents several circuits that can be used to improve the range and decrease the size of millimeter-sized wirelessly powered sensors. It is shown that this can be accomplished by decreasing the power consumption of the sensor, and several circuits common to wireless sensors are presented that consume very low amounts of power, in the 100 nW range. A wireless power transmission system that can generate power in the range of 1 µW is also presented. In completing my doctorate I relied, in no small part, on the support of many colleagues, family and friends. Without their support the work presented here would not have been possible, and I am very grateful for their efforts. A few of these people in particular I would like to distinguish here. First, I would like to thank my advisor, Travis Blalock, for his guidance and support. He allowed me the opportunity to work on a wide variety of interesting and challenging projects during my time at UVa, and was an invaluable help during all stages of my research. He always displayed great confidence in my abilities, and was always receptive and encouraging of my ideas. I would also like to thank the my doctoral committee, Ben Calhoun, Alf Weaver, Ron Williams and Scott Barker, for all their efforts and helpful feedback. In particular I would like to thank my committee chair, Ben Calhoun. He provided me with space on several chips to implement my designs, offered substantial constructive feedback on a great deal of my writing, and was always highly motivating. Many of my fellow students are also deserving of my thanks. Stuart Wooters was always available to help with any difficulties I was having, and our conversations about research proved very useful to my work. He also constructed the pad ring for the demodulator and wireless power transmission chips used in Chapters 3 and 4. Yanqing Zhang helped me with the synthesis of some of the digital logic used for iii the demodulator. Kyle Alexander Craig constructed the pad ring for the random identification chip described in Chapter 2. I would also like to thank Steve Jocke, Andrew Jurik, and Peter Beshay for their assistance. Many members of my family are deserving of my thanks. In particular, I would like to thank my grandfather, Fred Wikner, who has always maintained a great interest in my education, and been a strong motivating force in the pursuit of my doctorate. Lastly, but most importantly, I would like to thank my parents John and Andrea, and my brother Christian, for their unwavering love and support. They have always encouraged my interest in technical things, and have provided me with everything I needed to pursue my education. Their confidence in me has been invaluable. I cannot imagine a more supportive family, and for this I will always be grateful.

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An automated unique tagging system using CMOS process variation

Cited by 2 publications

References 6 publications

39 fJ/bit On-Chip Identification ofWireless Sensors Based on Manufacturing Variation

39 fJ/bit On-Chip Identification ofWireless Sensors Based on Manufacturing Variation

Design of mm-Sized Wirelessly Powered Sensors

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