ISSCC 2024
Session 25
Other
Extreme Wave-Based Metastructures Nader Engheta
opportunities for unprecedented control of electromagnetic and optical signals with numerous applications. In order to sculpt and manipulate waves to achieve exciting functionalities, we need materials. Judiciously engin
ISSCC 2024
Session 25
Other
Toward Exponential Growth of Therapeutic Neurotechnology
Motif Neurotech, Houston, TX 1 2 Bioelectronic devices that manipulate and record human neural activity could help patients suffering from debilitating health conditions not effectively treated by drugs. Here we discuss
ISSCC 2024
Session 26
Medical & Bio
A 600ch 10b Source-Driver IC with a Charge-Modulation DAC Achieving 1-Horizontal Time of 1.5μs Suitable for 240Hz-Frame-Rate Mobile Displays
with digital-to-analog conversion (DAC) and signal drive into pixels, drastically impact image quality in displays. As the demand for higher spatial resolution to enhance visual realism grows, even in mobile displays, a
ISSCC 2024
Session 26
Medical & Bio
A Fully Nonlinear Compact 10b Source Driver with Low-Voltage Gamma Slope DAC and Data/Phase Dependent Current Modulation Achieving 2411μm2/Channel for Mobile OLED Displays
C&Tech, Seoul, Korea 1 2 With the rapid development of display technology, there is a growing demand for highcolor-depth, low-power, cost-effective, and compact source-driver ICs (SD-IC), which convert digital data to an
ISSCC 2024
Session 26
Medical & Bio
Noise Immunity in Capacitive Sensing: Single-Ended AFE Design with Common-Current Subtraction for Mutual- and Self-Capacitance Sensing in 390pF Load
flagship smartphones thanks to their thin form factor. However, the touch sensor integrated within the display faces several technical challenges arising from large parasitic capacitance of the touch sensor [1]. A potenti
ISSCC 2024
Session 26
Medical & Bio
A 620pF-Compensated Dual-Mode Capacitance Readout IC for Sub-Display TSP with VRR Scan
become a prevalent use interaction method over the past decade, owing to their multi-touch capabilities and ease of use. There is a great demand for sub-display panels outside smartphones in emerging form-factor products
ISSCC 2024
Session 26
Medical & Bio
A 977μW Capacitive Touch Sensor with Noise-Immune Excitation Source and Direct Lock-In ADC Achieving 25.2pJ/step Energy Efficiency
China 1 2 Capacitive touch systems play a crucial role in user interfaces across many applications, such as mobile devices, desktop PCs, and interactive whiteboards [1-6]. In capacitive touch systems, various sources of
ISSCC 2024
Session 27
Wireless
A Differential Hybrid Class-ED Power Amplifier with 27W Maximum Power and 82% Peak E2E Efficiency for Wireless Fast Charging To-Go
Portable power banks with wireless charging are popular on the market, targeting a wireless charging to-go experience. However, the low input voltage from the battery and the large equivalent series resistance (ESR) of t
ISSCC 2024
Session 27
Wireless
A 6.78-MHz 79.5%-Peak-Efficiency Wireless Power Transfer System using a Wireless Mode-Recognition Technique and a Fully-On/off Class-D Power Amplifier
Wireless power transfer (WPT) systems are increasingly favored for applications such as implantable devices and portable electronics. In these systems, local voltage regulation on the receiver (RX) side ensures a well-re
ISSCC 2024
Session 27
Wireless
A 90.8%-Efficiency SIMO Resonant Regulating Rectifier Generating 3 Outputs in a Half Cycle with Distributed Multi-Phase Control for Wirelessly-Powered Implantable Devices
Wirelessly-powered implantable medical devices (IMDs) have recently embraced a 1stage resonant regulating rectifier (R3) to enhance power conversion efficiency (PCE), replacing the prior 2-stage structure comprising an ac-
ISSCC 2024
Session 27
Wireless
A 13.56MHz Wireless Power Transfer System with Hybrid Voltage-/Current-Mode Receiver and Global Digital-PWM Regulation Achieving 150% Transfer Range Extension and 72.3% End-to-End Efficiency
Wireless power transfer (WPT) shows extensive applications in sub-100mW batteryless biomedical implantable devices, where the robustness against variations in coupling and load conditions is still an unsolved and crucial
ISSCC 2024
Session 27
Wireless
A Wireless Power Transfer System with Up-to-27.9% Efficiency Improvement under Coupling Coefficient Ranging from 0.1 to 0.39 Based on Phase-Shift/Time-Constant Detection and Hybrid Transmission Power Control
Wireless power transfer (WPT) is a convenient way to power the wearable/portable devices with water/dusty-proof requirement. The end-to-end (E2E) efficiency ηE2E is a key specification of WPT system. A compact and efficient
ISSCC 2024
Session 28
Power Management
A 12V-Input 1V-1.8V-Output 94.7%-Peak-Efficiency 685A/cm3Current-Density Hybrid DC-DC Converter with a Charge Converging Phase
Large voltage-conversion-ratio (VCR) DC-DC converters (e.g. 12V to 1-to-1.8V) with high efficiency and high current density are essential for industrial and automotive applications. Conventional buck converters have to us
ISSCC 2024
Session 28
Power Management
A 12-28V to 0.6-1.8V Ratio-Regulatable Dickson SC Converter with Dual-Mode Phase Misalignment Operations Achieving 93.1% Efficiency and 6A Output
Rui P. Martins1,2, Pui-In Mak1 University of Macau, Macau, China University of Lisboa, Lisbon, Portugal 1 2 The USB PD standard for powering portable computing devices is continually advancing. The Adjustable Voltage Sup
ISSCC 2024
Session 28
Power Management
A 94.1%-Efficiency Parallel-SC Hybrid Buck Converter Designed Using VCR-Aware Topology Optimizer for a 4.2A/mm2 Current-Density FoM
pervasive trend across multiple markets, including the sector for buck DC-DC converters. One of the cardinal challenges in achieving optimized power density is navigating the intrinsic trade-off between an inductor’s vol
ISSCC 2024
Session 29
Quantum & Photonics
A 22nm FD-SOI <1.2mW/Active-Qubit AWG-Free Cryo-CMOS Controller for Fluxonium Qubits
Google Quantum AI, Goleta, CA 1 2 Superconducting quantum processors are among the most advanced quantum computing technologies. Systems based on these devices have enabled post-classical computation [1] and proof-of-con
ISSCC 2024
Session 29
Quantum & Photonics
A Cryo-CMOS Controller with Class-DE Driver and DC Magnetic-Field Tuning for Color-Center-Based Quantum Computers
Kai-Niklas Schymik2, Jiwon Yun2, Eftychia Tsapanou Katranara2, René Vollmer2, Tim Taminiau2, Fabio Sebastiano**1, Masoud Babaie**1 Delft University of Technology, Delft, The Netherlands, 2QuTech, Delft, The Netherlands *
ISSCC 2024
Session 29
Quantum & Photonics
A Cryo-CMOS Receiver with 15K Noise Temperature Achieving 9.8dB SNR in 10µs Integration Time for Spin Qubit Readout
Giordano Scappucci1,2, Lieven M. K. Vandersypen1,2, Fabio Sebastiano1,2, Masoud Babaie1,2 Delft University of Technology, Delft, The Netherlands QuTech, Delft, The Netherlands 1 2 Continuous rounds of quantum error corre
ISSCC 2024
Session 29
Quantum & Photonics
A Cryo-CMOS Quantum Computing Unit Interface Chipset in 28nm Bulk CMOS with Phase-Detection Based Readout and Phase-Shifter Based Pulse Generation
Beijing Academy of Quantum Information Sciences, Beijing, China 1 2 Cryogenic CMOS (Cryo-CMOS) ASICs have drawn increasing attention with great potential in scaling down the quantum computing (QC) platform. Recently, sev
ISSCC 2024
Session 29
Quantum & Photonics
A Portable 14GHz Dual-Mode Pulse and Continuous-Wave Electron Paramagnetic Resonance Spectrometer Using a Subharmonic Direct Conversion Receiver
University of Southern California, Los Angeles, CA Electron paramagnetic resonance (EPR) is a powerful spectroscopic technique for direct detection and characterization of free radicals, with high sensitivity and specific
ISSCC 2024
Session 3
Analog Circuits
A PVT-Insensitive Sub-Ranging Current Reference Achieving 11.4ppm/°C from -20°C to 125°C
Daegu Gyeongbuk Institute of Science and Technology, Daegu, Korea 1 2 Improving the temperature stability of the reference current (IREF) is essential for the reliable operation of precision electronics for various appli
ISSCC 2024
Session 3
Analog Circuits
A 0.69/0.58-PEF 1.6nW/24nW Capacitively Coupled Chopper Instrumentation Amplifier with an Input-Boosted First Stage in 22nm/180nm CMOS
Information Technology of Peking University, Hangzhou, China *Equally Credited Authors (ECAs) 1 2 The front-end amplifier typically determines the noise level of a sensor system. Therefore, a highly power-efficient amplifie
ISSCC 2024
Session 3
Analog Circuits
A 0.028mm2 32MHz RC Frequency Reference in 0.18μm CMOS with ±900ppm Inaccuracy from -40°C to 125°C and ±1600ppm Inaccuracy After Accelerated Aging
small chip area [1-6], and so can potentially replace bulky crystal- or MEMS-based frequency references in cost-sensitive IoT applications. However, due to the large and nonlinear temperature dependence of on-chip resist
ISSCC 2024
Session 3
Analog Circuits
A 0.5V 6.14µW Trimming-Free Single-XO Dual-Output
[8.1nJ, 200µs] Successive-Approximation-Based RTC Calibration Rui Luo1, Ka-Meng Lei1, Rui P. Martins1,2, Pui-In Mak1 University of Macau, Macau, China, Instituto Superior Técnico/Universidade de Lisboa, Lisbon, Portugal
ISSCC 2024
Session 3
Analog Circuits
A 14b 98Hz-to-5.9kHz 1.7-to-50.8μW BW/Power Scalable Sensor Interface with a Dynamic Bandgap Reference and an Untrimmed Gain Error of ±0.26% from -40°C to 125°C
Kofi A. A. Makinwa3, Nick Nianxiong Tan1 Vango Technologies, Hangzhou, China Zhejiang University, Hangzhou, China 3 Delft University of Technology, Delft, The Netherlands *Equally Credited Authors (ECAS) 1 2 To accommodat
ISSCC 2024
Session 3
Analog Circuits
A 4mW 45pT/√Hz Magnetoimpedance-Based ΔΣ Magnetometer with Background Gain Calibration and Short-Time CDS Techniques
Aichi Steel, Tokai, Japan 1 2 Low-noise, low-power digital-output magnetometers are essential for various applications, including security-gate systems, non-destructive inspections, and geomagnetic and biomagnetic measur
ISSCC 2024
Session 3
Analog Circuits
An Amplifier-Less CMOS Potentiostat IC Consuming 3.7nW Power all over 129.5dB Dynamic Range for Electrochemical Biosensing
The Catholic University of Korea, Bucheon, Korea 3 New York University, New York, NY 1 2 Ultra-low-power potentiostats, which perform high-precision current measurements for electrochemical biosensing, hold paramount imp
ISSCC 2024
Session 3
Analog Circuits
A β-Compensated NPN-Based Temperature Sensor with ±0.1°C (3σ) Inaccuracy from -55°C to 125°C and a 200fJ∙K2 Resolution FoM
The two key performance metrics of BJT-based temperature sensors are their accuracy and energy efficiency. Although NPN-based temperature sensors achieve the best energy efficiency [1], they have not been able to combine t
ISSCC 2024
Session 3
Analog Circuits
A 0.65V 900μm2 BEoL RC-Based Temperature Sensor with ±1°C Inaccuracy from -25°C to 125°C
capacity and prevent chip overheating, it is essential to minimize the gap between on-die thermal measurements and the actual temperature at hotspots. This relies primarily on the inherent accuracy of the temperature sen
ISSCC 2024
Session 3
Analog Circuits
A 1.2V High-Voltage-Tolerant Bootstrapped Analog Sampler in 12-bit SAR ADC Using 3nm GAA’s 0.7V Thin-Gate-Oxide Transistor
process utilizing the Multi-Bridge-Channel-FET (MBCFET) with nanosheet technology enhances performance, power efficiency, and area (PPA) benefits by large effective channel width and enhanced design flexibility compared to
ISSCC 2024
Session 30
Digital Circuits
A 40nm VLIW Edge Accelerator with 5MB of 0.256pJ/b RRAM and a Localization Solver for Bristle Robot Surveillance
Sigang Ryu1, Jong-Hyeok Yoon2, Zhijian Hao1, Azadeh Ansari1, Win-San Khwa3, Yu-Der Chih4, Meng-Fan Chang3, Arijit Raychowdhury1 Georgia Institute of Technology, Atlanta, GA Daegu Gyeongbuk Institute of Science and Techno
ISSCC 2024
Session 30
AI / ML
A 22nm 0.26nW/Synapse Spike-Driven Spiking Neural Network Processing Unit Using Time-Step-First Dataflow and Sparsity-Adaptive In-Memory Computing
Science and Technology University, Beijing, China *Equally Credited Authors (ECA) 1 2 Recently, brain-inspired spiking neural networks (SNNs) have demonstrated tremendous improvement in energy efficiency (EE) and low powe
ISSCC 2024
Session 30
Digital Circuits
VIP-Sat: A Boolean Satisfiability Solver Featuring 5×12 Variable In-Memory Processing Elements with 98% Solvability for 50-Variables 218-Clauses 3-SAT Problems
Boolean satisfiability (SAT), a non-deterministic polynomial (NP)-complete problem, has gained increasing attention with applications in artificial intelligence, machine learning, electronic design automation, and VLSI tes
ISSCC 2024
Session 30
Digital Circuits
A Fully Integrated Annealing Processor for Large-Scale Autonomous Navigation Optimization selectors arranged in two stages, reducing the critical path by 85% compared to the design with a 1024b selector. An additional LFSR is included to ensure that the resulting distribution reaches uniformity.
In this work, the sizes of the clusters can be balanced by limiting the number of stations in a cluster. Memory access to the locations of stations can be reduced by mapping computations for clustering in a 2D array onto
ISSCC 2024
Session 30
Digital Circuits
A Variation-Tolerant In-eDRAM Continuous-Time Ising Machine Featuring 15-Level Coefficients and Leaked Negative-Feedback Annealing
in various real-world decision-making and planning problems. However, most CO problems (COPs) are NP-hard, demanding substantial computational resources with conventional computers. The Ising machine is promising in addr
ISSCC 2024
Session 30
AI / ML
Vecim: A 289.13GOPS/W RISC-V Vector Co-Processor with Compute-in-Memory Vector Register File for Efficient High-Performance Computing
Vector processors have re-emerged in high-performance computing and flagship mobile SoC designs for their improved programmability, appealing power efficiency over multicore processors and area efficiency over GPUs [1]. For
ISSCC 2024
Session 31
Power Management
An 83.4%-Peak-Efficiency Envelope-Tracking Supply Modulator Using a Class-G Linear Amplifier and a Single-Inductor Dual-Input-Dual-Output Converter for 200MHz Bandwidth 5G New Radio RF Applications
Envelope tracking (ET) significantly improves the efficiency of RF power amplifiers (PAs) in mobile handsets. Most ET supply modulators (ETSMs) adopt a hybrid topology, combining a wide-bandwidth low-efficiency linear amplifi
ISSCC 2024
Session 31
Power Management
A Capacitor-Based Bias-Flip Rectifier with Electrostatic Charge Boosting for Triboelectric Energy Harvesting Achieving Auto-MPPT at Breakdown Voltage and 14× Power Extraction Improvement
With the advantages of flexibility and power density, triboelectric nanogenerators (TENGs) are promising in harvesting ambient mechanical energy via triboelectrification and electrostatic induction to power lower-power Int
ISSCC 2024
Session 31
Power Management
A Ripple-Less Buck Converter with Sub -21.94dB EVM for 5G Low Earth Orbit Application
Hsing-Yen Tsai1, Rong-Bin Guo1, Ke-Horng Chen1, Kuo-Lin Zeng1,2, Ying-Hsi Lin3, Shian-Ru Lin3, Tsung-Yen Tsai3 National Yang Ming Chiao Tung University, Hsinchu, Taiwan Chip-GaN Power Semiconductor, Hsinchu, Taiwan 3 Rea
ISSCC 2024
Session 31
Power Management
A 950ns 0.5-to-5.5V 5G NR RF PA Supply Modulator with Floating Capacitor Control for Symbol Power Tracking
in which the output power of the RF power amplifier (RF PA) changes rapidly, the fast dynamic voltage scaling (DVS) is required in the supply modulator that provides voltage to the RF PA. In 3GPP requirements, the user eq
ISSCC 2024
Session 31
Power Management
% Efficiency 1200V-to-48V LLC Converter with CC/CV Mode Charging Compliant with EVSE Level 1
Yu-Ting Huang1, Xiao-Quan Wu1, Ke-Horng Chen1, Kuo-Lin Zeng1,2, Ying-Hsi Lin3, Shian-Ru Lin3, Tsung-Yen Tsai3 National Yang Ming Chiao Tung University, Hsinchu, Taiwan Chip-GaN Power Semiconductor, Hsinchu, Taiwan 3 Real
ISSCC 2024
Session 31
Power Management
A SIDO/DISO VCF-Step-Reconfigurable Continuously ScalableConversion-Ratio SC Converter Achieving 91.4%/92.6% Peak Efficiency and Almost-lossless Channel Switching
University of Lisboa, Lisbon, Portugal 1 2 In an energy harvesting (EH) system for the internet of things (IoT), the input voltage VIN may vary within a wide range, e.g., from 0.3 to 1.8V from a solar cell, while the bat
ISSCC 2024
Session 31
Power Management
A 3.6W 16V-Output 180ns-Response-Time 94%-Efficiency SC Sigma Converter with Output Impedance Compensation and Ripple Mitigation for LiDAR Driver Applications
Chinese University of Hong Kong, Shenzhen, China 3 Delft University of Technology, Delft, The Netherlands 4 Tsinghua University, Beijing, China *Equally Credited Authors (ECAs) 1 2 The rapid adoption of light detection a
ISSCC 2024
Session 31
Power Management
A 11.7W 9mV/A-Cross-Regulation Single-Inductor TripleOutput Buck Converter Using Unordered Power-Distributive Control for a 2A Load Transient
Single-inductor multiple-output (SIMO) converters, capable of providing multiple outputs from just one inductor, are highly favorable in cost- and size-constrained applications such as mobile devices. However, they inher
ISSCC 2024
Session 31
Power Management
An 85-264Vac to 3-4.2Vdc 1.05W Capacitive Power Converter with Idle Power Reduction and 4-Phase 1/10X SC Converter Achieving 5.11mW Quiescent Power and 78.2% Peak Efficiency
Chinese University of Hong Kong, Shenzhen, China 3 Iowa State University, Ames, IA 1 2 Smart homes and smart buildings require numerous offline devices such as IoT nodes, object sensors, smoke detectors, etc. Those device
ISSCC 2024
Session 32
Power Management
A 47GHz 4-way Doherty PA with 23.7dBm P1dB and 21.7% / 13.1% PAE at 6 / 12dB Back-off Supporting 2000MHz 5G NR 64-QAM OFDM
*Equally Credited Authors (ECAs) As mm-wave 5G continues to advance in the 28 and 38GHz bands (n257 to n261), the ever-increasing demand for data-rates is also driving 5G expansion to higher frequencies, such as the 47GH
ISSCC 2024
Session 32
Power Management
A Compact Broadband VSWR-Resilient True-Power-and-Gain Sensor with Dynamic-Range Compensation for Phased-Array Applications
Georgia Institute of Technology, Atlanta, GA *Equally Credited Authors (ECAs) 1 2 With the rapid growth of mm-wave wireless technologies, phased arrays are essential to meet the stringent link-budget requirements under p
ISSCC 2024
Session 32
Power Management
A 24.25-to-29.5GHz Extremely Compact Doherty Power Amplifier with Differential-Breaking Phase Offset Achieving 23.7% PAEavg for 5G Base-Station Transceivers
Taewan Kim, Jinhyun Kim, Woojae Lee, Jae-hong Park, Kihyun Kim, Dong-hyun Lee, Sangho Lee, Jeong Ho Lee, Ji Hoon Kim, Younghwan Kim, Sangyong Park, Bohee Suh, Soyoung Oh, Dongsoo Lee, Sehyug Jeon, Juho Son, Sung-gi Yang
ISSCC 2024
Session 32
Power Management
A Load-Variation-Tolerant Doherty Power Amplifier with Dual-Adaptive-Bias Scheme for 5G Handsets
In modern mobile communications, a high peak-to-average power ratio (PAPR) and a broadband bandwidth are essential for realizing high data-rate communication links. However, a high amplifier efficiency is crucial for a lon
ISSCC 2024
Session 32
Power Management
A 67.8-to-108.2GHz Power Amplifier with a Three-CoupledLine-Based Complementary-Gain-Boosting Technique Achieving 442GHz GBW and 23.1% peak PAE gain response of the input stage is also boosted at a high frequency to further compensate for the gain slope of the power stage and for enhancing the total bandwidth.
Weiping Wu, Xun Bao, Shulan Chen, Yan Wang, Lei Zhang The schematic of the prototype PA using the proposed TCL-based CGB technique is shown in Fig. 32.4.3. The PA consists of a CS output stage, a TCL-based CGB driver sta