Institute of Microelectronics

Scalable Patterning of Organic Electrochemical Transistors for Logic Gates and Neuromorphic Computing

ABSTRACT Organic electrochemical transistors (OECTs) are promising building blocks for bioelectronics owing to their efficient ion–electron coupling, soft‐material compatibility and high transconductance. However, their large off‐state currents and poor scalability have so far li...

Carbon quantum dots synthesis by laser ablation of graphene oxide in biocompatible solutions

A biocompatible dispersion of carbon quantum dots (CQDs) has been obtained by laser irradiation of graphene oxide (GO) in liquid media. The CQD synthesis uses a pulsed IR laser operating at 970 nm, with a 100 ms pulse duration and a fluence of 1.1 kJ/cm2. The carbon target consis...

Glass-network-dominated instability of laser modification and sidewall undulation formation in through-glass vias fabricated by laser-induced deep etching

Through-glass vias (TGVs) fabricated by femtosecond laser-induced deep etching (LIDE) are critical vertical interconnect structures for glass-based heterogeneous integration. However, severe sidewall undulation and excessive roughness remain major challenges that degrade metalliz...

Engineering defects and ion pathways in MOF membranes for advanced low-concentration CO2 capture and photocatalytic conversion

Efficient capture and conversion of low-concentration CO 2 (10–15 vol% in industrial flue gas, ∼420 ppm in ambient air) remains a critical bottleneck for carbon capture, utilization and storage (CCUS) toward global carbon neutrality. Conventional stepwise "capture-then-conversion...

Broadband Transient Spectral Band Detection and Computation Based on 2D‐vdW Nano Device

ABSTRACT The ability to resolve optical signals with different wavelengths or colors is essential for a wide range of advanced photonic applications, such as wavelength‐division multiplexed multichannel optical communications and multiparameter intelligent sensing systems. Howeve...

A Millimeter-Wave Dual-Band Substrate Integrated Waveguide Filter with Complementary Split Ring Resonators

This paper presents a millimeter-wave dual-band bandpass filter based on a substrate integrated waveguide (SIW). The dual-band response is realized by embedding two pairs of complementary split-ring resonators (CSRRs) with different dimensions in the SIW cavity. Their geometry-de...

Electrical feedthrough governs symmetry of phononic frequency combs in MEMS resonators

Understanding parasitic electrical feedthrough in microelectromechanical (MEMS) resonators is essential for controlling nonlinear spectral phenomena. Here, we demonstrate that electrical feedthrough fundamentally governs the symmetry of phononic frequency combs in a capacitively...

Composite Crystalline Aluminum Nitride Passivation for Near-Junction Thermal Management in Gallium Nitride High-Electron-Mobility Transistors

In this work, we demonstrate a composite crystalline aluminum nitride (AlN) passivation layer for near-junction thermal management in aluminum gallium nitride/gallium nitride (AlGaN/GaN) high-electron-mobility transistors (HEMTs). The 120-nm-thick AlN film consists of an ordered...

Large tunneling magnetoresistance in room temperature magnetic tunnel junctions based on altermagnetic XV2Y2O

This work presents a comprehensive investigation of spin-dependent quantum transport properties of the emerging layered room temperature metallic altermagnet family X V 2 Y 2 O ( X = K, Rb, Cs; Y = S, Se, Te), based on first-principles calculations combined with the non-equilibri...

Geometrical-optics resonator photonics

Conventional waveguide optical resonators face inherent limitations of low damage thresholds, limited coupling tunability, and stochastic resonance. To overcome these, we introduce a geometrical-optics resonator (GOR) framework, emulating free-space reflection and thin-film coupl...

HZO thickness-dependent charge loss mechanisms in HfO2-based MIFIS FeFETs

Hafnium-based ferroelectric field-effect transistors (FeFETs) with metal/gate interlayer/ferroelectric/channel interlayer/silicon (MIFIS) gate stacks are a promising candidate for high-density 3D NAND. However, the severe retention degradation hinders their application, and the d...

Spatial Regulation and Steering of Temporal-Interference Electric Fields in an Idealized Cylindrical Forearm Model

Transcutaneous electrical stimulation (TES) is a non-invasive technique that delivers electrical currents through the skin to modulate peripheral neural and muscular activity. However, conventional surface stimulation often exhibits limited spatial selectivity because current spr...

Investigation of Position-Dependent Signal Propagation Delay in Large-Pitch AC-LGAD Using a Two-Dimensional Transmission-Line Model

This paper presents a study of position-dependent signal propagation delay in large-pitch pixelated AC-coupled Low-Gain Avalanche Detectors (AC-LGADs). In AC-LGADs, a continuous resistive N+ layer and segmented AC-coupled readout electrodes enable charge sharing and simultaneous...

Direct evaporation of single-crystal metal contacts for 2D semiconductors

Metal contacts remain one of the key bottlenecks in two-dimensional (2D) semiconductor electronics. We developed an atomic-scale step-by-step evaporation method to directly grow single-crystal metals on monolayer semiconductors with clean interfaces. This method accesses a distin...

A Hardware-Error-Aware Time-Domain CIM Accelerator for AdderNet with Significance-Aware Dual-Mode DTC Encoding and Shared-Clock TDC Readout

Adder neural networks remove multiplication from convolution, yet their direct L1-distance datapath still requires subtraction, absolute-value generation, and wide accumulation. We address this cost by mapping the online L1 operation to minimum selection and time-domain accumulat...

A Design-Technology Co-Optimization Framework Based on Process-Parameter Sensitivity Analysis

This paper proposes a design-technology co-optimization (DTCO) framework applicable to advanced technology nodes, which accelerates the process optimization exploration for such nodes. Developing automatic parameter extraction algorithms tailored for the BSIM-CMG model, along wit...

Enhancing Dermatological Image Segmentation via In‐Sensor Computing With a Neuromorphic Ga‐Doped ZnO Nanorod‐Based Optoelectronic Memristors

ABSTRACT Conventional computing architectures with separate sensing and processing units are plagued by latency and energy inefficiencies. By fusing local data and computation, in‐sensor computing enables real‐time localized data processing and decision‐making, approaching the en...

Mechanistic Mapping of Additive Cracking for Hybrid SEI Construction in Aqueous Zinc‐Ion Batteries

ABSTRACT Electrolyte additives represent a promising strategy for regulating the solid‐electrolyte interphase (SEI) in aqueous zinc‐ion batteries. However, the underlying molecular mechanisms by which these additives mediate SEI formation remain insufficiently understood. Here, w...