ISSCC 2021
Session 23
mm-Wave
A 605GHz 0.84mW Harmonic Injection-Locked Receiver Achieving 2.3pW/√Hz NEP in 28nm CMOS
The use of THz signals for imaging and sensing, enabling numerous applications in object characterization, medical, security, and other fields, has gained large interest in recent years. Both THz transmitters and receive
ISSCC 2021
Session 23
mm-Wave
A 436-to-467GHz Lens-Integrated Reconfigurable Radiating Source with Continuous 2D Steering and Multi-Beam Operations in 65nm CMOS
High-resolution and fast imaging/sensing at THz requires highly directive steerable beams for scanning the object. A coherent array of coupled sources could improve the radiated power but requires mechanical and slow sca
ISSCC 2021
Session 23
AI / ML
270-to-300GHz Double-Balanced Parametric Upconverter Using Asymmetric MOS Varactors and a Power-SplittingTransformer Hybrid in 65nm CMOS
Oklahoma State University, Stillwater, OK 1 2 Wireless communication at ~300GHz is drawing attention due to its potential to support a high data-rate using the wide available bandwidth. Transmitters operating at ~300GHz
ISSCC 2021
Session 22
mm-Wave
A 250GHz Autodyne FMCW Radar in 55nm BiCMOS with Micrometer Range Resolution
systems have pushed the operation frequency to the terahertz range due to the shorter wavelength and larger available bandwidth [1-5]. However, the best-reported range resolution cannot go below 1.5mm with a 100GHz bandw
ISSCC 2021
Session 22
mm-Wave
A 0.42THz Coherent TX-RX System Achieving 10dBm EIRP and 27dB NF in 40nm CMOS for Phase-Contrast Imaging
The small wavelength and non-ionizing nature of EM waves in the THz spectrum make this frequency band attractive for high-resolution imaging applications. While amplitudebased THz imaging systems have already been demons
ISSCC 2021
Session 22
mm-Wave
A 300GHz-Band Phased-Array Transceiver Using Bi-Directional Outphasing and Hartley Architecture in 65nm CMOS
Chenxin Liu1, Kiyoshi Yanagisawa1, Ashbir Aviat Fadila1, Jian Pang1, Hiroshi Hamada2, Hideyuki Nosaka2, Atsushi Shirane1, Kenichi Okada1 Tokyo Institute of Technology, Tokyo, Japan NTT, Kanagawa, Japan 1 The LO phase gen
ISSCC 2021
Session 22
mm-Wave
THz Prism: One-Shot Simultaneous Multi-Node Angular Localization Using Spectrum-to-Space Mapping with 360-to-400GHz Broadband Transceiver and Dual-Port Integrated Leaky-Wave Antennas
*Equally-Credited Authors (ECAs) The spectrum above 100GHz is expected to spawn a generation of ultra-high-speed wireless links and intelligent sensing and imaging applications. They are meant to be supported through a h
ISSCC 2021
Session 21
RF & Wireless
An Integrated 2.4GHz -91.5dBm-Sensitivity Within-Packet Duty-Cycled Wake-Up Receiver Achieving 2µW at 100ms Latency
*Equally-Credited Authors (ECAs) The Internet-of-Things (IoT) requires dense sensor networks with low-latency response from wireless devices that operate on severely limited power budgets. Integrated wakeup receivers (Wu
ISSCC 2021
Session 21
RF & Wireless
A 0.75-to-1GHz Passive Wideband Noise-Cancelling 171µW Wake-Up RX and 440µW Primary RX FE with -86dBm/10kb/s Sensitivity, 35dB SIR and 3.8dB RX NF
Matthew L. Johnston1, Harish Krishnaswamy2, Arun Natarajan1 Oregon State University, Corvallis, OR Columbia University, New York, NY 1 2 *Equally-Credited Authors (ECAs) IoT transceiver deployments are envisioned to have
ISSCC 2021
Session 21
RF & Wireless
A Fully Integrated 2.7µW -70.2dBm-Sensitivity Wake-Up
-16.5dB-SIR, FEC and Cryptographic Checksum downconversion, charge summation, baseband amplification, and ADC without requiring static bias currents, driving-buffers, and level-shifting circuits at each interface, saving
ISSCC 2021
Session 21
RF & Wireless
A 3-to-10GHz 180pJ/b IEEE802.15.4z/4a IR-UWB Coherent Polar Transmitter in 28nm CMOS with Asynchronous Amplitude Pulse-Shaping and Injection-Locked Phase Modulation
Ming Ding, Johan Dijkhuis, Gert-Jan van Schaik, Elbert Bechthum, Johan van den Heuvel, Mohieddine El Soussi, Arjan Breeschoten, Hannu Korpela, Yao-Hong Liu, Christian Bachmann imec-Netherlands, Eindhoven, The Netherlands
ISSCC 2021
Session 21
RF & Wireless
A 1.125Gb/s 28mW 2m-Radio-Range IR-UWB CMOS Transceiver
Ewha Womans University, Seoul, Korea 1 2 As the amount of information that wireless communication devices carry increases more than ever, the importance of data transmission speed and efficiency has drastically increased
ISSCC 2021
Session 20
AI / ML
A 60GHz 186.5dBc/Hz FoM Quad-Core Fundamental VCO Using Circular Triple-Coupled Transformer with No Mode Ambiguity in 65nm CMOS
The recent development of the 5th-generation (5G) communication sytems has set increasingly strict requirements on the spectral purity of millimeter-wave (mm-wave) local oscillators (LO). Low phase noise is crucial to en
ISSCC 2021
Session 20
RF & Wireless
A 3.09-to-4.04GHz Distributed-Boosting and HarmonicImpedance-Expanding Multi-Core Oscillator with -138.9dBc/Hz at 1MHz Offset and 195.1dBc/Hz FoM
Zhejiang University, Hangzhou, China 1 2 The rapid development of high-speed communication and radar systems has placed stringent requirements on the spectral purity of RF oscillators. Also, maximizing battery lifetime,
ISSCC 2021
Session 20
RF & Wireless
A 5.0-to-6.36GHz Wideband-Harmonic-Shaping VCO Achieving 196.9dBc/Hz Peak FoM and 90-to-180kHz 1/f3 PN Corner Without Harmonic Tuning
Instituto Superior Tecnico/University of Lisboa, Lisbon, Portugal 1 2 Since 2001 [1], LC VCOs have been demonstrating significant improvements of figureof-merit (FoM) and 1/f3 phase noise (PN) corner [2-5] by exploring c
ISSCC 2021
Session 2
mm-Wave
SOLI: A Tiny Device for a New Human Machine Interface
Jaime Lien2, Dennis Noppeney1, Maryam Tabesh2, Christoph Rumpler1, Michael Aichner3, Siegfried Albel3, Jagjit Singh Bal4, Ivan Poupyrev2 Infineon Technologies, Neubiberg, Germany Google, Mountain View, CA 3 Infineon Tech
ISSCC 2021
Session 2
mm-Wave
High-Performance and Small Form-Factor mm-Wave CMOS Radars for Automotive and Industrial Sensing in 76-to-81GHz and 57-to-64GHz Bands
Karthik Subburaj2, Zeshan Ahmad1, Daniel Breen1, Sunhwan Jang1, Tim Davis1, Mayank Singh1, Shankar Ram2, Vashishth Dudhia2, Marc DeWilde1, Dheeraj Shetty2, John Samuel2, Zahir Parkar2, Cathy Chi1, Pilar Loya1, Zachary Cr
ISSCC 2021
Session 2
mm-Wave
mm-Wave 5G Radios: Baseband to Waves
Mohamed Abdalla1, Mohamed Mobarak1, John Kilpatrick2, Brian Hall2, Ahmed Ashry1, Hossam Fahmy1, Sherif Salim1, Russell Kernan2, Brian Herdeg2, Gary Sapia2, Mohamed El-Nozahi1, Mohamed Weheiba1, Mark D’Amato2, Christian B
ISSCC 2021
Session 19
Wireline I/O
A MEMS-Based Dynamic Light Focusing System for Single-Cell Precision in Optogenetics
Mohammad Meraj Ghanbari1, Nick Antipa1, Sina Faraji Alamouti1, Laura Waller1,2, Daniel Lopez3, Rikky Muller1,2 University of California, Berkeley, CA Chan Zuckerberg Biohub, San Francisco, CA 3 National Institute of Stan
ISSCC 2021
Session 19
Wireline I/O
A Mechanically Flexible Implantable Neural Interface for Computational Imaging and Optogenetic Stimulation over 5.4×5.4mm2 FoV
Jacob T. Robinson3, Ashok Veeraraghavan3, Kenneth L. Shepard1 Columbia University, New York, NY University of Washington, Seattle, WA 3 Rice University, Houston, TX 1 2 *Equally-Credited Authors (ECAs) The advent of gene
ISSCC 2021
Session 19
Wireline I/O
Optical Phased-Array FMCW LiDAR with On-Chip Calibration
Light detection and ranging (lidar) sensors provide high resolution and high accuracy for diverse applications such as autonomous vehicles and three-dimensional imagers. Over the past few years, there has been significan
ISSCC 2021
Session 18
Medical & Bio
A Wireless Multimodality System-on-a-Chip with Time-Based Resolution Scaling Technique for Chronic Wound Monitoring
wounds (CWs) may last for weeks or even months. The process of CW healing relies on many highly regulated factors, such as C-reactive protein (CRP), uric acid (UA), and temperature, which require in-depth observations. R
ISSCC 2021
Session 18
Medical & Bio
An Integrated Thermal Actuation/Sensing Array with Stacked Oscillators for Efficient and Localized Heating of Magnetic Nanoparticles with Sub-Millimeter Spatial Resolution efficiency and loop gain. A smaller VGS reduces the conduction angle in the large-signal operation for better energy efficiency while compromising the loop gain at startup. With 0.5V VGS, the simulated efficiency is >45%, and the loop gain is >2.3 across the entire frequency tuning range.
the fourth row of the array and capacitively coupled to the oscillator outputs. The measured maximum RF swing is >19.5Vpp for the four-stacked oscillator and >26.5Vpp for the five-stacked oscillator from 1.44 to 1.95GHz
ISSCC 2021
Session 18
Medical & Bio
CMOS-Driven Pneumatic-Free Scalable Microfluidics and Fluid Processing with Label-Free Cellular and Bio-Molecular Sensing Capability for an End-to-End Point-of-Care System
point-of-care (POC) molecular diagnostic platforms that encompass an end-to-end system (from sample fluid to diagnostic information) with the ability to allow rapid analysis on the spot. While POC sensing technologies ha
ISSCC 2021
Session 18
Medical & Bio
An Optically-Addressed Nanowire-Based Retinal Prosthesis with 73% RF-to-Stimulation Power Efficiency and 20nC-to-3µC Wireless Charge Telemetering
Patrick P. Mercier1, Gert Cauwenberghs1 University of California, San Diego, La Jolla, CA KAIST, Daejeon, Korea 3 Nanovision Biosciences, San Diego, CA 1 2 Recent approaches toward a functional retinal prosthesis to rest
ISSCC 2021
Session 17
Power Management
A High-Conversion-Ratio and 97.4% Peak-Efficiency 3-Switch Boost Converter with Duty-Dependent Charge Topology for 1.2A High Driving Current and 20% Reduction of Inductor DC Current in MiniLED Applications
Chin-Hsiang Liang1, Kai-Syun Chang1, Kai-Cheng Chung1, Ke-Horng Chen1, Ying-Hsi Lin2, Shian-Ru Lin2, Tsung-Yen Tsai2 National Chiao Tung University, Hsinchu, Taiwan, Realtek Semiconductor, Hsinchu, Taiwan 1 2 Today’s min
ISSCC 2021
Session 17
Power Management
A 90.5%-Efficiency 28.7µVRMS-Noise Bipolar-Output HighStep-Up SC DC-DC Converter with Energy-Recycled Regulation and Post-Filtering for ±15V TFT-Based LAE Sensors
The applications of large-area electronics (LAEs) based on thin-film transistors (TFTs) are rapidly expanding from displays to sensors. For the TFT gate drivers, high-voltage bipolar supply rails (approximately ±15V) are
ISSCC 2021
Session 17
Power Management
A 0.03mV/mA Low Crosstalk and 185nA Ultra-Low-Quiescent Single-Inductor Multiple-Output Converter Assisted by 5-Input Operational Amplifier for 94.3% Peak Efficiency and 3.0W Driving Capability
multi-output (SIMO) converter offers the advantage of small size and can provide distributive voltage/current for wearable electronic devices. However, there are still some design challenges to solve. In continuous-condu
ISSCC 2021
Session 17
Power Management
A Reconfigurable DC-DC Converter for Maximum TEG Energy Harvesting in a Battery-Powered Wireless Sensor Node
wireless sensor node (WSN). However, energy harvesting resources are inherently sporadic and critically affected by their environment, mandating energy storage elements (e.g., battery or super-capacitor) to guarantee a r
ISSCC 2021
Session 17
Power Management
A 98.2%-Efficiency Reciprocal Direct Charge Recycling Inductor-First DC-DC Converter
Inductive DC-DC converters are fundamentally limited by the trade-off between conduction losses and switching losses. Miniaturized converters used in applications such as mobile devices suffer badly from this trade off,
ISSCC 2021
Session 17
Power Management
Peak-Current-Controlled Ganged Integrated High-Frequency Buck Voltage Regulators in 22nm CMOS for Robust Cross-Tile Current Sharing
Suhwan Kim1, Xiaosen Liu1, Huong T. Do2, Kaladhar Radhakrishnan2, Krishnan Ravichandran1, James W. Tschanz1, Vivek De1 Intel, Hillsboro, OR Intel, Chandler, AZ 1 2 High-performance many-core processors and GPUs demand 10
ISSCC 2021
Session 17
Power Management
A 1.25GHz Fully Integrated DC-DC Converter Using Electromagnetically Coupled Class-D LC Oscillators
electronics has strengthened the demand for fully integrated power management circuits. Buck converters offer high efficiency, but they cannot satisfy the stringent size requirements because bulky off-chip inductors are
ISSCC 2021
Session 17
Power Management
A Masterless Fault-Tolerant Hybrid Dickson Converter with 95.3% Peak Efficiency 20V-to-60V Input and 3.3V Output for 48V Multi-Phase Automotive Applications
NXP Semiconductors, Chandler, AZ 1 Autonomous-driving features have increased the load power demand of processors, which in turn, have resulted in the development of a 48V bus in electric vehicles. The resulting high and
ISSCC 2021
Session 17
Power Management
A Two-Stage Cascaded Hybrid Switched-Capacitor DC-DC Converter with 96.9% Peak Efficiency Tolerating 0.6V/µs Input Slew Rate During Startup
Efficient high-conversion-ratio power delivery is needed for many portable computing applications which require sub-volt supply rails but operate from batteries or USB power sources. In such applications, the power manag
ISSCC 2021
Session 16
Memory
An 89TOPS/W and 16.3TOPS/mm2 All-Digital SRAM-Based Full-Precision Compute-In Memory Macro in 22nm for Machine-Learning Edge Applications
Rawan Naous, Yu-Lin Chen, Chieh-Pu Lo, Cheng-Han Lu, Haruki Mori, Wei-Chang Zhao, Dar Sun, Mahmut E. Sinangil, Yen-Huei Chen, Tan-Li Chou, Kerem Akarvardar, Hung-Jen Liao, Yih Wang, Meng-Fan Chang, Tsung-Yung Jonathan Ch
ISSCC 2021
Session 16
Memory
A 28nm 384kb 6T-SRAM Computation-in-Memory Macro with 8b Precision for AI Edge Chips VGBL= (VMM15 × CGBL15 + VMM14 × CGBL14 + … + VMM0 × CGBL0)/(CGBL15 + CGBL14 + … + CGBL0). The voltage of GBLB (VGBLB) is the pMACV of 2bIN×1bW with 16-channel accumulation using the LSB part of a 4b-input (IN10).
Ping-Chun Wu1, Yen-Lin Chung1, Li-Yang Hung1, Jin-Sheng Ren1, Tianlong Pan1, Sih-Han Li2, Shih-Chieh Chang2, Shyh-Shyuan Sheu2, Wei-Chung Lo2, Chih-I Wu2, Xin Si1, Chung-Chuan Lo1, Ren-Shuo Liu1, Chih-Cheng Hsieh1, Kea-T
ISSCC 2021
Session 16
AI / ML
eDRAM-CIM: Compute-In-Memory Design with Reconfigurable Embedded-Dynamic-Memory Array Realizing Adaptive Data Converters and Charge-Domain Computing
has led to massive amounts of data movement from off-chip memory to on-chip processing cores in modern machine learning (ML) accelerators. Compute-in-memory (CIM) designs performing analog DNN computations within a memor
ISSCC 2021
Session 16
Memory
A 22nm 4Mb 8b-Precision ReRAM Computing-in-Memory Macro with 11.91 to 195.7TOPS/W for Tiny AI Edge Devices
Sheng-Po Huang1, Fu-Chun Chang1, Peng Chen1, Ta-Wei Liu1, Chuan-Jia Jhang1, Chin-I Su2, Win-San Khwa2, Chung-Chuan Lo1, Ren-Shuo Liu1, Chih-Cheng Hsieh1, Kea-Tiong Tang1, Yu-Der Chih2, Tsung-Yung Jonathan Chang2, Meng-Fa
ISSCC 2021
Session 15
Digital Processors
A 5.99-to-691.1TOPS/W Tensor-Train In-Memory-Computing Processor Using Bit-Level-Sparsity-Based Optimization and Variable-Precision Quantization
position of M macros. The CMA reduces memory accesses by 70.32%, on average, in various NNs. Ruiqi Guo1, Zhiheng Yue1, Xin Si2, Te Hu1, Hao Li1, Limei Tang1, Yabing Wang1, Leibo Liu1, Meng-Fan Chang3, Qiang Li2, Shaojun
ISSCC 2021
Session 15
AI / ML
A 65nm 3T Dynamic Analog RAM-Based Computing-inMemory Macro and CNN Accelerator with Retention
computing inside memory macros have shown significant advantages in computing efficiency for deep learning applications. While earlier CIM macros were limited by lower bit precision, e.g. binary weights in [1], recent wo
ISSCC 2021
Session 15
Digital Processors
A 2.75-to-75.9TOPS/W Computing-in-Memory NN Processor Supporting Set-Associate Block-Wise Zero Skipping and Ping-Pong CIM with Simultaneous Computation and Weight Updating
Zhe Yuan1, Mingtao Zhan1, Jiaxin Liu1, Jian-Wei Su3, Yen-Lin Chung3, Ping-Chun Wu3, Li-Yang Hung3, Meng-Fan Chang3, Nan Sun1, Xueqing Li1, Huazhong Yang1, Yongpan Liu1 Tsinghua University, Beijing, China Pi2star Technolo
ISSCC 2021
Session 15
AI / ML
A Programmable Neural-Network Inference Accelerator Based on Scalable In-Memory Computing operations occur in the dedicated NMC BPBS SIMD module, which is optimized for 1-to-8b weights/activations, and further programmable element-wise operations (e.g., arbitrary activations functions) occur in the NMC CMPT SIMD module.
Jinseok Lee, Naveen Verma Figure 15.1.3 shows a sample of the operations enabled by CIMU configurability and the SW instruction libraries. In addition to temporal mapping of NN layers, the architecture provides extensive
ISSCC 2021
Session 14
mm-Wave
A Fully Integrated 62-to-69GHz Crystal-Less Transceiver with 12 Channels Tuned by a Transmission-LineReferenced FLL in 0.13µm BiCMOS
The progress towards smaller Wireless Sensor Networks (WSNs) has expanded the applications for ubiquitous sensing. However, the form-factor of a WSN is typically limited by bulky off-chip components, mainly the crystal r
ISSCC 2021
Session 14
mm-Wave
An Adaptive Analog Temperature-Healing Low-Power 17.7-to-19.2GHz RX Front-End with ±0.005dB/°C
Min Li*1, Nayu Li*1, Huiyan Gao*1, Shaogang Wang*1, Zijiang Zhang1, Peidi Chen1, Ningjie Wei1, Qun Jane Gu2, Chunyi Song1, Zhiwei Xu1 Zhejiang University, Zhoushan, China University of California, Davis, CA 1 2 *Equally-
ISSCC 2021
Session 14
mm-Wave
A 76-to-81GHz 2×8 FMCW MIMO Radar Transceiver with Fast Chirp Generation and Multi-Feed Antenna-in-Package Array
Ying Liu1, Yanhui Wu2, Tao Zhang2, Ming Liu1, Bingfei Dou1, Bingbing Liao1, Wei Lv1, Dongfang Pan3, Yongjie Li3, Changwei Wang3, Yuefei Dai1, Pei Li1, Hao Gao4,5 East China Research Institute of Electronic Engineering, H
ISSCC 2021
Session 14
mm-Wave
A 1V W-Band Bidirectional Transceiver Front-End with <1dB
Wei Zhu, Jiawen Wang, Ruitao Wang, Yan Wang Institute of Microelectronics of Tsinghua University, Beijing, China Millimeter-wave (mm-wave) imaging radars and communication systems operating at W-band obtain an ever-incre
ISSCC 2021
Session 14
mm-Wave
A 24-to-30GHz Double-Quadrature Direct-Upconversion Transmitter with Mutual-Coupling-Resilient Series-Doherty Balanced PA for 5G MIMO Arrays
The performance and robustness of millimeter-wave (mm-wave) phased-array transmitters (TXs) define, to a large extent, the quality of a high-data-rate 5G link. In practical situations, however, this TX performance is str
ISSCC 2021
Session 14
mm-Wave
A 26GHz Full-Duplex Circulator Receiver with 53dB/400MHz (40dB/800MHz) Self-Interference Cancellation for mm-Wave Repeaters
Reduction in base-station deployment costs while increasing coverage has motivated Integrated Access and Backhaul (IAB) nodes in mm-wave 5G NR (Fig. 14.3.1). Similarly, high path loss due to shadowing and limited outdoor
ISSCC 2021
Session 14
mm-Wave
An Early Fusion Complementary RADAR-LiDAR TRX in 65nm CMOS Supporting Gear-Shifting Sub-cm Resolution for Smart Sensing and Imaging
sensing provides comprehensive and effective environment information through complementary signals in data acquisition. As an emerging solution, the multimodal sensing becomes essential and boosts applications in automot
ISSCC 2021
Session 14
mm-Wave
A 71-to-86GHz Packaged 16-Element by 16-Beam Multi-User Beamforming Integrated Receiver in 28nm CMOS
high-capacity wireless access. A base-station array of M antennas simultaneously steers K independent beams, which enables spatial multiplexing and channel bandwidth reuse across multiple users. It has been shown that fo