{"title":"Generic Cryogenic CMOS Device Modeling and EDA-Compatible Platform for Reliable Cryogenic IC Design","authors":"Zhidong Tang;Zewei Wang;Yumeng Yuan;Chang He;Xin Luo;Ao Guo;Renhe Chen;Yongqi Hu;Longfei Yang;Chengwei Cao;Lin Lin Liu;Liujiang Yu;Ganbing Shang;Yongfeng Cao;Shoumian Chen;Yuhang Zhao;Shaojian Hu;Xufeng Kou","doi":"10.1109/JEDS.2025.3542589","DOIUrl":"https://doi.org/10.1109/JEDS.2025.3542589","url":null,"abstract":"This paper outlines the establishment of a generic cryogenic CMOS database in which key electrical parameters and transfer characteristics of the MOSFETs are quantified as functions of device size, temperature/frequency responses. Meanwhile, comprehensive device statistical analysis is conducted to evaluate the influence of variation and mismatch effects at low temperatures. Furthermore, by incorporating the Cryo-CMOS compact model into the process design kit (PDK), the cryogenic 4 Kb SRAM and 5-bit flash ADC are designed, and their performance is investigated and optimized based on the EDA-compatible platform, hence laying a solid foundation for large-scale cryogenic IC design.","PeriodicalId":13210,"journal":{"name":"IEEE Journal of the Electron Devices Society","volume":"13 ","pages":"117-127"},"PeriodicalIF":2.0,"publicationDate":"2025-02-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10891147","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143512789","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Harmonic Enhancement of Terahertz GaN Planar Gunn Oscillators With Multiple Gates","authors":"Ying Wang;Shuai Hui;Yu-Xin Fu;Yuan-Zhu Xia;He Guan","doi":"10.1109/JEDS.2025.3543017","DOIUrl":"https://doi.org/10.1109/JEDS.2025.3543017","url":null,"abstract":"In this paper, we propose a novel design of GaN-based planar Gunn oscillator as terahertz signal source. The oscillator has multiple gates and each gate can be individually biased. By controlling gate bias voltage and distance to the barrier layer, the output oscillating current can be formed in such a way that the higher harmonics are more powerful than the fundamental one. This is because multiple Gunn domains created under the gates in the channel are synchronized. Compared to the conventional single-domain diode, this multi-gate configuration not only increases the frequency and output power but also provides superior harmonic control, leading to higher efficiency and more stable operation at terahertz frequencies. We will review the design details and analysis on domain forming conditions using a physics-based numerical model. The optimal parameters for high power, high DC-RF conversion efficiency and high frequency will be given. Specifically, in dual-gate device, when it works in the dual-domain mode, the second harmonic is enhanced, reaching a frequency of 310.5 GHz with 7.6 mW of power and 11.2% efficiency. The tri-gate device operating in tri-domain mode further enhances the third harmonic to 417.0 GHz, with 9.57 mW of power and 9.23% efficiency. The multi-gate structure allows for more efficient harmonic generation, greater frequency tunability, and better power management, all of which are crucial for advanced terahertz application such as mixing, frequency multiplexing, and signal amplification.","PeriodicalId":13210,"journal":{"name":"IEEE Journal of the Electron Devices Society","volume":"13 ","pages":"145-153"},"PeriodicalIF":2.0,"publicationDate":"2025-02-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10891377","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143611872","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Ángel A. Díaz-Burgos;Enrique G. Marin;Francisco Pasadas;Francisco G. Ruiz;Andrés Godoy
{"title":"Modeling of van der Waals-Based Photovoltaic Devices","authors":"Ángel A. Díaz-Burgos;Enrique G. Marin;Francisco Pasadas;Francisco G. Ruiz;Andrés Godoy","doi":"10.1109/JEDS.2025.3542168","DOIUrl":"https://doi.org/10.1109/JEDS.2025.3542168","url":null,"abstract":"Two-dimensional Transition Metal Dichalcogenide-based van der Waals heterostructures have been proposed for avant-garde, highly scalable optoelectronic and excitonic devices. Although ab initio techniques have been thoroughly employed to analyze these confined systems from a microscopic perspective, a robust mesoscopic description for device-scale simulation is still lacking. In this work, we account for the recent reports on the role of interlayer excitons and the band alignment in van der Waals-based optoelectronic devices, developing an extended van Roosbroeck system within the framework of the Drift-Diffusion approximation. Ultrafast interlayer charge transfer of photo-generated carriers is incorporated effectively, as is interlayer recombination. This description succeeds in reproducing selected experimental measurements of a van der Waals-based gated-diode, providing a comprehensive physical description of the involved magnitudes.","PeriodicalId":13210,"journal":{"name":"IEEE Journal of the Electron Devices Society","volume":"13 ","pages":"219-227"},"PeriodicalIF":2.0,"publicationDate":"2025-02-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10887203","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143667623","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"A 3-kV GaN MISHEMT With High Reliability and a Power Figure-of-Merit of 685 MW/cm²","authors":"Yifan Cui;Minghao He;Jianguo Chen;Yang Jiang;Chuying Tang;Qing Wang;Hongyu Yu","doi":"10.1109/JEDS.2025.3533920","DOIUrl":"https://doi.org/10.1109/JEDS.2025.3533920","url":null,"abstract":"In this letter, GaN metal–insulator–semiconductor high electron mobility transistors (MISHEMTs) are fabricated on Si substrates with an ultra-high breakdown voltage of over 3 kV using a 90-nm in situ <inline-formula> <tex-math>$textrm {SiN}_{mathrm { X}}$ </tex-math></inline-formula> layer as both the gate dielectric and surface passivation. The devices exhibit low off-state leakage current (on/off ratio of <inline-formula> <tex-math>$10{^{{9}}}$ </tex-math></inline-formula>), high forward gate breakdown voltage (>122 V), and state-of-the-art figure of merit (685 MW/cm2). Moreover, the reliability of the in situ <inline-formula> <tex-math>$textrm {SiN}_{mathrm { X}}$ </tex-math></inline-formula> dielectric is evaluated through the high-temperature gate bias test. The results are fitted with a Weibull distribution, estimating a 10-year estimation of 100 ppm. The maximum gate-source voltage of over 70 V is obtained. This letter presents a strategy for mass producing GaN-on-Si MISHEMTs with high breakdown voltage and reliability.","PeriodicalId":13210,"journal":{"name":"IEEE Journal of the Electron Devices Society","volume":"13 ","pages":"106-111"},"PeriodicalIF":2.0,"publicationDate":"2025-02-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10886964","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143446251","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Zhuo Chen;Nicolò Ronchi;Roman Izmailov;Hongwei Tang;Mihaela Ioana Popovici;Harold Dekkers;Alexandru Pavel;Geert Van den Bosch;Maarten Rosmeulen;Valeri V. Afanas’Ev;Jan Van Houdt
{"title":"Understanding the Slow Erase Operation in IGZO-Channel FeFETs: The Role of Positive Charge Generation Kinetics","authors":"Zhuo Chen;Nicolò Ronchi;Roman Izmailov;Hongwei Tang;Mihaela Ioana Popovici;Harold Dekkers;Alexandru Pavel;Geert Van den Bosch;Maarten Rosmeulen;Valeri V. Afanas’Ev;Jan Van Houdt","doi":"10.1109/JEDS.2025.3541418","DOIUrl":"https://doi.org/10.1109/JEDS.2025.3541418","url":null,"abstract":"This work systematically investigates the programming and erasing dynamics of IGZO-channel back-gated FeFETs, uncovering that erase operation is significantly slower than programming. PUND measurements in ferroelectric capacitors with IGZO top electrodes reveal that the ferroelectric switching kinetics under negative bias are limited by the generation of positive charges. Two underlying physical mechanisms are identified: (1) IGZO-bandgap donor states, which can get positively charged by emitting electrons to Conduction Band and reversibly neutralized during programming, help ferroelectric switching and limits the switching kinetics; and (2) hydrogen doping into IGZO, which proceeds at a much slower rate and is irreversible, thus incapable of supporting ferroelectric switching. This work emphasizes the importance to deepen the understanding of erasing kinetics to enable low-latency, and high-endurance applications of oxide-semiconductor-channel FeFETs.","PeriodicalId":13210,"journal":{"name":"IEEE Journal of the Electron Devices Society","volume":"13 ","pages":"245-251"},"PeriodicalIF":2.0,"publicationDate":"2025-02-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10883345","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143667455","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Logic-Compatible Asymmetrical FET for Gain Cell eDRAM With Long Retention and Fast Access Speed","authors":"Kaifeng Wang;Pengfei Hao;Fangxing Zhang;Lining Zhang;Qianqian Huang;Ru Huang","doi":"10.1109/JEDS.2025.3540581","DOIUrl":"https://doi.org/10.1109/JEDS.2025.3540581","url":null,"abstract":"A novel Asymmetrical FET (AsyFET) is proposed to enhance the retention of gain cell memory and is experimentally demonstrated based on standard 300mm logic foundry platform. In AsyFET, the asymmetrical S/D doping and S/D gate spacer are designed to suppress leakage current. The modulated Schottky direct tunneling current and band-to-band tunneling current are designed to write “1” and “0” respectively without write disturb. The AsyFET-based 2T0C DRAM with significantly enhanced retention and fast access speed is also proposed and experimentally demonstrated on the same wafer. Without area penalty or new materials, the fabricated Si AsyFET can obtain ultralow off-state current of <inline-formula> <tex-math>$sim 10{^{-}17 }$ </tex-math></inline-formula>A/<inline-formula> <tex-math>$mu $ </tex-math></inline-formula>m, leading to the long retention above second-level in 55nm technology node across the 300mm wafer. The on-state currents of AsyFET at forward and reverse bias are <inline-formula> <tex-math>$sim 10{^{-}6 }$ </tex-math></inline-formula>A/<inline-formula> <tex-math>$mu $ </tex-math></inline-formula>m, enabling write speed of below 5ns with negligible temperature dependence. The experimental results show the great potential of proposed AsyFET 2T0C DRAM design for low-power, high-density, and high-speed on-chip memory.","PeriodicalId":13210,"journal":{"name":"IEEE Journal of the Electron Devices Society","volume":"13 ","pages":"237-244"},"PeriodicalIF":2.0,"publicationDate":"2025-02-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10879406","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143667575","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Minghao He;Mujun Li;Chenkai Deng;Xiaohui Wang;Qing Wang;Hongyu Yu;Kah-Wee Ang
{"title":"Trap Analysis of Normally-Off Ga₂O₃ MOSFET Enabled by Charge Trapping Layer: Photon Stimulated Characterization and TDDB","authors":"Minghao He;Mujun Li;Chenkai Deng;Xiaohui Wang;Qing Wang;Hongyu Yu;Kah-Wee Ang","doi":"10.1109/JEDS.2025.3538769","DOIUrl":"https://doi.org/10.1109/JEDS.2025.3538769","url":null,"abstract":"A charge trapping layer (CTL) technique is incorporated to achieve a normally-off Ga2O3 MOSFET. The gate dielectric was engineered using a stack composed of a blocking layer (16 nm <inline-formula> <tex-math>${mathrm { HfO}}_{mathrm { x}}$ </tex-math></inline-formula> / 2 nm Al2O3), a CTL (5.76 nm Al:HfO<inline-formula> <tex-math>${_{text {x}}}~1$ </tex-math></inline-formula>:5), and a tunneling barrier (2 nm Al2O3 / 2 nm <inline-formula> <tex-math>${mathrm { HfO}}_{mathrm { x}}$ </tex-math></inline-formula> / 2 nm Al2O3). The trap profile of the CTL layer and the interface of the gate dielectric and Ga2O3 channel are studied by photon-stimulated characterization, which yield highly uniform results, indicating the high quality and uniformity of the proposed method. Furthermore, we conducted a time-dependent dielectric breakdown (TDDB) test on devices both without a field plate (NOFP) and with a source-connected field plate (SFP) to investigate the dielectric failure mechanism and gain valuable insights for the design of CTL-based Ga2O3 MOSFETs.","PeriodicalId":13210,"journal":{"name":"IEEE Journal of the Electron Devices Society","volume":"13 ","pages":"112-116"},"PeriodicalIF":2.0,"publicationDate":"2025-02-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10877719","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143446253","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Jelle H. T. Bakker;Marcin Ł. Motycki;Raymond J. E. Hueting;Anne-Johan Annema;Mark S. Oude Alink
{"title":"Electrical and 850 nm Optical Characterization of Back-Gate Controlled 22 nm FDSOI PIN-Diodes Without Front-Gate","authors":"Jelle H. T. Bakker;Marcin Ł. Motycki;Raymond J. E. Hueting;Anne-Johan Annema;Mark S. Oude Alink","doi":"10.1109/JEDS.2025.3537290","DOIUrl":"https://doi.org/10.1109/JEDS.2025.3537290","url":null,"abstract":"We present electrical and optical <inline-formula> <tex-math>$(lambda =rm {850~nm })$ </tex-math></inline-formula> measurement results of back-gate controlled SOI PIN-diodes without a front-gate, with an intrinsic Si film thickness of only <inline-formula> <tex-math>${sim }rm 6nm $ </tex-math></inline-formula>. These ultrathin-body PIN-diodes were fabricated as exploratory devices in a commercially available Fully-Depleted Silicon-On-Insulator (FDSOI) technology, without requiring additional process steps. We show that electrostatic back-gate tuning significantly affects the electrical characteristics and optical responsivity <inline-formula> <tex-math>$({{R_{mathrm { o}}}{}})$ </tex-math></inline-formula>. This leads to a novel method to extract the optimal back-gate bias for maximum <inline-formula> <tex-math>${R_{mathrm { o}}}{}$ </tex-math></inline-formula> from electrical measurements. The maximal measured <inline-formula> <tex-math>${R_{mathrm { o}}}{}$ </tex-math></inline-formula> at 0V bias across the diode and with optimal back-gate bias equals <inline-formula> <tex-math>$62{mu }$ </tex-math></inline-formula>A /W, with a -3dB bandwidth of 5.9GHz, and a -6dB bandwidth of 15GHz. These PIN-diodes potentially open the way to new (THz) circuits, sensors, novel/complementary process control monitoring structures, and optical applications. They also enable interaction between the hybrid (bulk) and SOI devices, which is a unique feature of FDSOI technologies.","PeriodicalId":13210,"journal":{"name":"IEEE Journal of the Electron Devices Society","volume":"13 ","pages":"190-199"},"PeriodicalIF":2.0,"publicationDate":"2025-01-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10859268","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143688052","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Call for Nominations for Editor-in-Chief","authors":"","doi":"10.1109/JEDS.2025.3536136","DOIUrl":"https://doi.org/10.1109/JEDS.2025.3536136","url":null,"abstract":"","PeriodicalId":13210,"journal":{"name":"IEEE Journal of the Electron Devices Society","volume":"13 ","pages":"1075-1075"},"PeriodicalIF":2.0,"publicationDate":"2025-01-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10858348","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143106750","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Announcing an IEEE/Optica Publishing Group Journal of Lightwave Technology Special Issue on: OFS-29","authors":"","doi":"10.1109/JEDS.2025.3528210","DOIUrl":"https://doi.org/10.1109/JEDS.2025.3528210","url":null,"abstract":"","PeriodicalId":13210,"journal":{"name":"IEEE Journal of the Electron Devices Society","volume":"13 ","pages":"1074-1074"},"PeriodicalIF":2.0,"publicationDate":"2025-01-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10858349","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143106751","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}