E. Guthmuller, C. F. Tortolero, P. Vivet, C. Bernard, I. Panades, J. Durupt, E. Beignc, D. Lattard, S. Chéramy, A. Greiner, Quentin L. Meunier, P. Bazargan-Sabet
{"title":"A 29 Gops/Watt 3D-Ready 16-Core Computing Fabric with Scalable Cache Coherent Architecture Using Distributed L2 and Adaptive L3 Caches","authors":"E. Guthmuller, C. F. Tortolero, P. Vivet, C. Bernard, I. Panades, J. Durupt, E. Beignc, D. Lattard, S. Chéramy, A. Greiner, Quentin L. Meunier, P. Bazargan-Sabet","doi":"10.1109/ESSCIRC.2018.8494275","DOIUrl":"https://doi.org/10.1109/ESSCIRC.2018.8494275","url":null,"abstract":"3D TSV integration enables scalable manycore architectures, however they require advanced cache coherence features to enable simple programming models. We propose TSARLET, a general purpose 16-core computing fabric targeting 3D TSV integration with a fully scalable cache coherent memory architecture, using distributed L2-caches, and adaptive fault tolerant L3-caches. Implemented in 28nm UTBB FDSOI technology, the circuit operates up to 1.15 GHz using adaptive clocking and provides 29 Gops/W in the 0.5-1.3V supply range. The chip's performance is demonstrated using an image filter application and an OpenMP based Convolutional Neural Network (CNN) on Linux.","PeriodicalId":355210,"journal":{"name":"ESSCIRC 2018 - IEEE 44th European Solid State Circuits Conference (ESSCIRC)","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133634841","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"A 0.4-1.0GHz, 47MHop/S Frequency Hopped TXR Front-End with 20dB in-Band Blocker Rejection","authors":"Naser Mousavi, Zhiheng Wang, R. Harjani","doi":"10.1109/ESSCIRC.2018.8494249","DOIUrl":"https://doi.org/10.1109/ESSCIRC.2018.8494249","url":null,"abstract":"An ultra-fast frequency hopping spread spectrum transceiver front-end architecture is presented that provides 20dB of processing gain at RF for the first time. This enables the receiver front-end to supress any in-band interferes by 20dB before they arrive at the LNA. The circuit consists of passive mixers and agile digital oscillator/DAC engines that are capable of quickly moving in the frequency domain with very low power. A transient hop time of 1.5ns is achieved in this design. The front-end implemented in 65nm CMOS technology, occupies an active area of 3.lmm2, and consumes 24mW (=PTX=PRX) from a 1V power supply for a center frequency of 1GHz.","PeriodicalId":355210,"journal":{"name":"ESSCIRC 2018 - IEEE 44th European Solid State Circuits Conference (ESSCIRC)","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132748147","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"A 320µV-Output Ripple and 90ns-Settling Time at 0.5V Supply Digital-Analog-Hybrid LDO Using Multi-Level Gate-Voltage Generator and Fast-Decision PD Detector","authors":"Younghyun Lim, Jeonghyun Lee, Yongsun Lee, Seyeon Yoo, Jaehyouk Choi","doi":"10.1109/ESSCIRC.2018.8494243","DOIUrl":"https://doi.org/10.1109/ESSCIRC.2018.8494243","url":null,"abstract":"This work presents a digital-analog-hybrid LDO (HLDO) using a multi-level gate-voltage generator (MGG) to achieve a small output ripple (VR) and a fast-transient response. Using the MGG that can partially turn on transistors in the power MOSFET (Mp) and thus reduce Mp's LSB current, VR was limited to less than 320 µV. Also, a fast-decision PD detector having a non-zero decision level expedited the switching of transistors in Mp, thereby reducing the settling time to less than 90 ns.","PeriodicalId":355210,"journal":{"name":"ESSCIRC 2018 - IEEE 44th European Solid State Circuits Conference (ESSCIRC)","volume":"68 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130591035","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"A Fully Integrated Switched-Capacitor Based AC-DC Converter for a 120VRMS Mains Interface","authors":"Elly De Pelecijn, M. Steyaert","doi":"10.1109/ESSCIRC.2018.8494251","DOIUrl":"https://doi.org/10.1109/ESSCIRC.2018.8494251","url":null,"abstract":"A fully integrated AC-DC power converter interfacing the 120 V RMSmains and fabricated in 0.35 µm-CMOS is presented. The converter uses a variable voltage division approach in order to step down the high input voltage while increasing the power density. The design includes customized AC-switches and a high-voltage capacitor and achieves an output power of 15.16µW at an efficiency of 80.7% on 9.8mm2.","PeriodicalId":355210,"journal":{"name":"ESSCIRC 2018 - IEEE 44th European Solid State Circuits Conference (ESSCIRC)","volume":"74 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133201628","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"A Pseudo-Ramp Controlled Three Level Buck Converter with an Auto-Ripple Cancellation Technique for Low Output Voltage Ripple in Sub-Threshold Applications","authors":"Li-Cheng Chu, Shao-Qi Chen, Ke-Horng Chen, Ying-Hsi Lin, Shian-Ru Lin, Tsung-Yen Tsai","doi":"10.1109/ESSCIRC.2018.8494303","DOIUrl":"https://doi.org/10.1109/ESSCIRC.2018.8494303","url":null,"abstract":"In high switching frequency and low duty conversion, the on-time in duty cycle is restrained to brief period. The three-level converter extends the on-time to two times larger. By Pseudo-Ramp Controller (PRC) and Auto-Ripple Cancellation (ARC) Topology, flying capacitors are balanced to 50% input voltage with the accuracy of duty cycle improves 11 times and 3mV output voltage ripple.","PeriodicalId":355210,"journal":{"name":"ESSCIRC 2018 - IEEE 44th European Solid State Circuits Conference (ESSCIRC)","volume":"49 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133264636","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Where Technology Meets Security: Key Storage and Data Separation for System-on-Chips","authors":"G. Sigl, Mathieu Gross, Michael Pehl","doi":"10.1109/ESSCIRC.2018.8494319","DOIUrl":"https://doi.org/10.1109/ESSCIRC.2018.8494319","url":null,"abstract":"This article investigates the dependency between advances in chip technology, architectures, and security. Two major properties of secure systems are analyzed in this context: data separation of different applications and secure storage of cryptographic keys. We discuss first examples for compromising data separation, e.g. the Rowhammer attack on modern DRAMs, enabled by the sensitivity of shrinked DRAM cells for crosstalk effects, or Meltdown and Spectre attacks using cache side channels. These attacks show the dependency between data separation and advances in technology and architecture. Even more powerful attacks exploiting bus and network-on-chip traffic are possible. Another area where technology meets security is the storage of cryptographic keys. New technologies offer new ways to realize non-volatile memory (NVM) for secret data storage and to implement physical unclonable functions (PUFs), which generate the key during system start and do not store it permanently in NVM. To enable good PUFs, technology and security people should work together as early as possible in the development phase, since PUFs must be characterized carefully. Ideally a PUF module is provided as a characterized and reliable security primitive in the design library. If we manage to take security already into account in early technology development phases and during architecture definition, we will get more secure systems-on-chip in the future.","PeriodicalId":355210,"journal":{"name":"ESSCIRC 2018 - IEEE 44th European Solid State Circuits Conference (ESSCIRC)","volume":"38 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132382408","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Energy-Efficient Design in FDSOI","authors":"B. Nikolić","doi":"10.1109/ESSDERC.2018.8486856","DOIUrl":"https://doi.org/10.1109/ESSDERC.2018.8486856","url":null,"abstract":"This talk presents options for energy-efficient mixed-signal and digital design in FDSOI technologies. Effective generation of body bias and its use to improve efficiency will be presented on the examples of RF and baseband building blocks, temperature sensors, data converters and voltage regulators. The techniques will be presented within a concept of a RISC-V-based SoC, designed to operate in a very wide voltage range utilizing 28nm FDSOI.","PeriodicalId":355210,"journal":{"name":"ESSCIRC 2018 - IEEE 44th European Solid State Circuits Conference (ESSCIRC)","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126077679","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Smart Connected Sensors - Enablers for the IoT","authors":"U. Gomez","doi":"10.1109/ESSDERC.2018.8486853","DOIUrl":"https://doi.org/10.1109/ESSDERC.2018.8486853","url":null,"abstract":"The Internet of Things (IoT) is all about making life simpler and more exciting for consumers by interconnecting the world around them. But how can this promise of the IoT be fulfilled? In the world of IoT, microelectromechanical systems (MEMS) sensors form the backbone of the interface between the user and the multitudes of devices that surround us, such as smartphones, wearables, robots and drones. However, making devices able to sense and be connected is simply not enough to realize the grand promise of the IoT. The fact remains, that IoT will only be successful if it follows a user-centric approach, i.e. by solving real-life everyday challenges, making life simpler, enhancing ease of use. Furthermore, ubiquitous sensing of everything on all manner of devices in an ever-increasing number of complex environments poses definite and growing challenges for sensor providers.","PeriodicalId":355210,"journal":{"name":"ESSCIRC 2018 - IEEE 44th European Solid State Circuits Conference (ESSCIRC)","volume":"41 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122309115","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Said Hussaini, Hui Jiang, P. Walsh, D. MacSweeney, K. Makinwa
{"title":"A 15nW Per Button Noise-Immune Readout IC for Capacitive Touch Sensor","authors":"Said Hussaini, Hui Jiang, P. Walsh, D. MacSweeney, K. Makinwa","doi":"10.1109/ESSCIRC.2018.8494283","DOIUrl":"https://doi.org/10.1109/ESSCIRC.2018.8494283","url":null,"abstract":"This paper presents a readout IC that uses an asynchronous charge-redistribution-based capacitance-to-digital-converter (CDC) to digitize the capacitance of a touch sensor. Thanks to the power efficient tracking algorithm, the CDC consumes negligible power consumption in the absence of touch events. To facilitate stand-alone or wake-on-touch applications, the CDC can be periodically triggered by a co-integrated ultra-low power relaxation oscillator. At a 38 Hz scan-rate, the readout IC consumes 15 nW per touch sensor, which is the lowest reported to date.","PeriodicalId":355210,"journal":{"name":"ESSCIRC 2018 - IEEE 44th European Solid State Circuits Conference (ESSCIRC)","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127736115","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
V. Leung, Jihun Lee, Siwei Li, Siyuan Yu, Chester Kilfoyle, L. Larson, A. Nurmikko, F. Laiwalla
{"title":"A CMOS Distributed Sensor System for High-Density Wireless Neural Implants for Brain-Machine Interfaces","authors":"V. Leung, Jihun Lee, Siwei Li, Siyuan Yu, Chester Kilfoyle, L. Larson, A. Nurmikko, F. Laiwalla","doi":"10.1109/ESSCIRC.2018.8494335","DOIUrl":"https://doi.org/10.1109/ESSCIRC.2018.8494335","url":null,"abstract":"Current state-of-the-art Brain-Machine Interfaces (BMIs) rely on invasive “passive” microelectrode technologies, which are prohibitively challenging to scale beyond several hundred channels due to physical constraints. Further performance enhancement in BMIs relies on the ability to develop implantable sensor technologies that would be scalable to thousands of channels without significant biological overhead. In this work., we describe prototype testing of a distributed sensor system of CMOS “Neurograins,” which provide a high density network of autonomous implantable neural sensors. These Neurograins are wirelessly powered using near-field RF at ~1 GHz and at densities up to 250 chips/cm2, A 3-coil system is used to enhance the wireless signal transfer function. Telemetry is accomplished using RF backscatter with TDMA networking at a data rate of 10 Mbps, and Bit Error Rates (BER) <0.1% (measurement limit). An asynchronous periodic, packetized multiple access network is demonstrated for initial Neurograin arrays. Benchtop measured results incorporate a physiologic model for RF attenuation - a “Brain phantom” - to accurately mimic the biomedical scenario.","PeriodicalId":355210,"journal":{"name":"ESSCIRC 2018 - IEEE 44th European Solid State Circuits Conference (ESSCIRC)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129450963","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}