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Interfacial-Layer-Free Ge0.95Si0.05Nanosheet FeFETs

IEEE Transactions on Electron Devices 2024年第3期71卷 1758-1763页

作者： Hsieh, Wan-Hsuan Chen, Yu-Rui Liu, Yi-Chun Zhao, Zefu Lee, Jia-Yang Tu, Chien-Te Huang, Bo-Wei Wang, Jer-Fu Lee, M.H. Liu, C.W. Graduate Institute of Electronics Engineering National Taiwan University Taipei10617 Taiwan Institute and Undergraduate Program of Electro-Optical Engineering Graduate School of Advance Technology National Taiwan University Taipei10617 Taiwan National Taiwan University Graduate School of Advance Technology Taipei10617 Taiwan Graduate Institute of Electronics Engineering Graduate Institute of Photonics and Optoelectronics Graduate School of Advanced Technology National Taiwan University Department of Electrical Engineering Taipei10617 Taiwan

The substantial memory window (MW) of 1.8 V is achieved by utilizing stacked two nanosheet (NS) gate-all-around (GAA) Ge0.95 Si0.05 ferroelectric field-effect transistors (FeFETs), employing a low write voltage of 2 V. The channel phosphorus concentration 1E18 cm-3 is used to erase the absence of interfacial layer (IL) can reduce the operation voltage. An isotropic wet etching process is employed for channel release. The stacked two NSs offer the advantages of reducing cell-to-cell variation and doubling the read current. Additionally, the stability of data storage is demonstrated with the data retention of >1E4 s, linearly extrapolated to a span of 10 years, and exhibiting high endurance >1E11 cycles. The thermal budget is as low as 400 °C. © 1963-2012 IEEE.

关键词： III-V semiconductors

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Fully Integrated Pulse Analyzer Using Silicon Photonics

Fully Integrated Pulse Analyzer Using Silicon Photonics

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2024 Conference on Lasers and Electro-Optics, CLEO 2024

作者： Kondo, Keisuke Oshima, Hiroki Hayama, Ryo Sugihara, Okihiro Graduate Program in Optical Engineering Graduate School of Regional Development and Creativity Utsunomiya University 7-1-2 Yoto Tochigi Utsunomiya321-8585 Japan

We demonstrate a fully integrated pulse analyzer fabricated using silicon photonics. The device consists of an on-chip optical correlator and micro-ring filter. Pulse measurements on a chip with very high sensitivity ... 详细信息

ISBN: (纸本)9781957171395

关键词： Silicon photonics

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Fully Integrated Pulse Analyzer Using Silicon Photonics

Fully Integrated Pulse Analyzer Using Silicon Photonics

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CLEO: Science and Innovations in CLEO 2024, CLEO: S and I 2024 - Part of Conference on Lasers and Electro-Optics

关键词： Silicon photonics

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Amplitude and Phase Retrieval of optical Pulses Using A Silicon Photonics optical Correlator

Amplitude and Phase Retrieval of Optical Pulses Using A Sili...

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2023 Conference on Lasers and Electro-Optics, CLEO 2023

作者： Kondo, Keisuke Oshima, Hiroki Sugihara, Okihiro Graduate Program in Optical Engineering Graduate School of Regional Development and Creativity Utsunomiya University 7-1-2 Yoto Tochigi Utsunomiya321-8585 Japan

We propose retrieval of amplitude and phase of optical pulses using a silicon photonics optical correlator and tunable filter. The amplitude and phase of pico-second pulses with and without frequency chirp were succes... 详细信息

ISBN: (纸本)9781957171258

关键词： Silicon photonics

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Fully Integrated Pulse Analyzer Using Silicon Photonics

Fully Integrated Pulse Analyzer Using Silicon Photonics

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Conference on Lasers and Electro-Optics (CLEO)

作者： Keisuke Kondo Hiroki Oshima Ryo Hayama Okihiro Sugihara Graduate Program in Optical Engineering Graduate School of Regional Development and Creativity Utsunomiya University Tochigi Japan

ISBN: (纸本)9798350369311

关键词： optical filters Sensitivity Pulse measurements optical device fabrication Measurement by laser beam Lasers and electrooptics Silicon photonics System-on-chip optical sensors optical pulses

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Unleashing Endurance Limits of Emerging Memory: Multi-Level FeRAM Recovery Array Empowered by a Coordinated Inverting Amplifier Circuit

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IEEE Transactions on Electron Devices 2024年第4期71卷 2708-2713页

作者： Hsiang, K.-Y. Chang, F.-S. Lou, Z.-F. Aich, A. Senapati, A. Lee, J.-Y. Li, Z.-X. Chen, J.-H. Liu, C.-H. Liu, C.W. Maikap, S. Su, P. Hou, T.-H. Lee, M.H. National Yang Ming Chiao Tung University Institute of Electronics Hsinchu300 Taiwan National Taiwan University Program for Semiconductor Devices Materials and Hetero-Integration Taipei10617 Taiwan National Taiwan University Graduate Institute of Electronics Engineering Taipei10617 Taiwan Chang Gung University Department of Electronic Engineering Guishan33302 Taiwan National Taiwan Normal University Institute of Electro-Optical Engineering Taipei11677 Taiwan

Asymmetric field cycling recovery (AFCR) with alternating opposite low E -field cycling is proposed to restore a fatigued ferroelectric (FE) capacitor and is experimentally demonstrated for up to 1012 switching cycles, thereby extending the endurance of FeRAM. Positive and negative asymmetric minor loops (AmLs) with AFCR exhibit nondegradation and complete restoration of Δ 2P r toward unlimited endurance operation. Furthermore, an FE random access memory (FeRAM) array circuit with an inverting amplifier is designed to simultaneously execute Write/Read and Recovery procedures via the AFCR scheme. © 1963-2012 IEEE.

关键词： Ferroelectricity

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Amplitude and Phase Retrieval of optical Pulses Using A Silicon Photonics optical Correlator

Amplitude and Phase Retrieval of Optical Pulses Using A Sili...

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Conference on Lasers and Electro-Optics (CLEO)

作者： Keisuke Kondo Hiroki Oshima Okihiro Sugihara Graduate Program in Optical Engineering Graduate School of Regional Development and Creativity Utsunomiya University Utsunomiya Tochigi Japan

ISBN: (纸本)9781957171258

关键词： Free space optics Phase retrieval Picosecond pulses Silicon photonics Spectral phase interferometry for direct field reconstruction Tunable filters

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An Ultra-high Concentration of Colloidal Quantum Dots for Efficient Light Generation in A Packaged LED

An Ultra-high Concentration of Colloidal Quantum Dots for Ef...

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CLEO: Science and Innovations in CLEO 2024, CLEO: S and I 2024 - Part of Conference on Lasers and Electro-Optics

作者： Huang, Tzu Chia Chang, Ching Huang, Chung-Ping Kuo, Hao-Chung Lin, Chien-Chung Graduate Institute of Photonics and Optoelectronics National Taiwan University Taipei City106 Taiwan Graduate Program of College of Photonics College of Photonics National Yang Ming Chiao Tung University Tainan City Taiwan Department of Photonics Institute of Electro-Optical Engineering National Yang Ming Chiao Tung University Hsinchu300 Taiwan

In this study, we propose various methods to increase the colloidal quantum dot (CQD) efficiency in a packaged LED. The amount of CQD is much higher than the regular concentration with some of them over 40% of weight percentage. The microcarriers were applied to hold the CQDs and an 63.5% improvement of color conversion efficiency can be observed. © Optica Publishing Group 2024

关键词： Nanocrystals

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An Ultra-high Concentration of Colloidal Quantum Dots for Efficient Light Generation in A Packaged LED

An Ultra-high Concentration of Colloidal Quantum Dots for Ef...

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2024 Conference on Lasers and Electro-Optics, CLEO 2024

ISBN: (纸本)9781957171395

关键词： Nanocrystals

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FeRAM Recovery up to 200 Periods with Accumulated Endurance 1012 Cycles and an Applicable Array Circuit toward Unlimited eNVM Operations

FeRAM Recovery up to 200 Periods with Accumulated Endurance ...

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2023 IEEE Symposium on VLSI Technology and Circuits, VLSI Technology and Circuits 2023

作者： Hsiang, K.-Y. Lee, J.-Y. Chang, F.-S. Lou, Z.-F. Li, Z.-X. Li, Z.-H. Chen, J.-H. Liu, C.W. Hou, T.-H. Lee, M.H. Institute and Undergraduate Program of Electro-Optical Engineering National Taiwan Normal University Taiwan Institute of Electronics National Yang Ming Chiao Tung University Taiwan National Taiwan University Graduate School of Advance Technology Taiwan

ISBN: (纸本)9784863488069

Asymmetric Field Cycling Recovery (AFCR) with a low E-field is proposed for the first time to extend the endurance cycles of a ferroelectric (FE) capacitor and is experimentally demonstrated for 200 periods and accumulated to 1012 switching cycles. Positive and negative Asymmetric minor loops (AmL) with AFCR achieve the nondegradation and complete restoration of Δ 2 Pr toward the prospect of unlimited operation. Furthermore, an FeRAM array circuit with an inverting amplifier is designed to execute the Write/Read and Recovery procedures simultaneously by AFCR scheme. © 2023 JSAP.

关键词： Timing circuits

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