Company patents
Taiwan Semiconductor Manufacturing Company
Taiwan Semiconductor Manufacturing Company's patent strategy shows a surprising and drastic shift, with nearly all categories experiencing a significant decline in patent filings in 2025 and so far in 2026, including its core "Semiconductor Manufacturing Process" which dropped by 95.5% in 2025. This indicates a potential re-evaluation or major change in its intellectual property approach, moving away from the robust filing seen in 2023-2024 across areas like "Photolithography" (growing +75.0% YoY in 2024) and "Material & Chemical Analysis" (growing +200.0% YoY in 2024).
Patent Trend by Technology Area
Yearly patent publications since 2023
Product themes
Product-level themes inferred from filings since 2023, with category chips showing where each theme appears. Select a theme to filter the patents below.
93 US filings (since 2023) · 12 categories · 35 themes
Techniques and methodologies for fabricating semiconductor devices, including etching, deposition, annealing, isolation, and doping steps, aimed at improving yield, performance, or enabling new structures.
Novel materials and processes for forming low-resistance electrical contacts and interconnects within semiconductor devices, including selective deposition, silicidation, and barrier layers for improved performance and scaling.
Techniques for stacking multiple semiconductor dies or active layers vertically to achieve higher density and shorter interconnections, often utilizing through-silicon vias (TSVs) or other vertical conductive paths like through-hole electrodes.
Structural innovations in individual transistors, such as fin-based field-effect transistors (FinFETs), 3D gate structures, or multi-layer active regions, aimed at improving performance or density.
Systems and methods for automated substrate transport, precise positioning, temperature regulation, and chamber environment management to ensure process stability, uniformity, and yield in semiconductor manufacturing.
Techniques for precise material removal, pattern shaping, and controlling etch selectivity or uniformity, often involving plasma, wet chemistry, or directed beams to achieve desired features on semiconductor substrates.
Methods and equipment for applying photoresist uniformly onto wafers, forming patterns through various exposure techniques (e.g., direct imaging, multi-exposure), and integrating patterned layers into semiconductor structures or packaging.
Design and control of plasma processing chambers, including heating, gas delivery, electrode configurations, and magnetic field control for uniform and efficient material processing in semiconductor manufacturing.
Manufacturing processes and structural designs for transistors utilizing fin-shaped channels or multiple gates (e.g., FinFETs, Gate-All-Around FETs) to enhance gate control and reduce short-channel effects.
Components, processes, and methods specifically designed for Extreme Ultraviolet (EUV) lithography, including light sources, reflective optics, masks, pellicles, and contamination control mechanisms.
Packaging technologies where bare dies are embedded within a mold compound or substrate cavity, and then interconnected using redistribution layers (RDLs) for fan-out or compact integration, often avoiding through-silicon vias in the chips themselves.
Techniques for forming electrical contacts, vias, and interconnects to semiconductor devices, including advanced methods like contact-over-active-gate (COAG) and backside contacts for improved density and performance.
Design and operation of transistors optimized for memory applications, including floating body devices, ferroelectric FETs (FeFETs), vertical TFTs for 3D arrays, and charge-trapping memory cells.
Design and implementation of non-traditional logic gates or memory elements, often leveraging new materials or device physics to achieve multi-functionality, adaptive thresholds, or higher density.
Development of novel materials and designs for bonding, sealing, and underfill applications, focusing on improving mechanical integrity, electrical performance, and preventing defects like cracks or delamination in chip-to-chip connections.
Innovations in the design, materials, and manufacturing of lithography masks, including reflective masks, programmable masks, and defect mitigation strategies, to enable finer feature patterning and process control.
Design and engineering of specialized components within deposition systems, such as heaters, targets, susceptors, and chamber walls, to achieve precise control over process parameters like temperature, material flux, and plasma characteristics.
Focuses on the physical design, materials, and manufacturing processes for individual memory cells, including transistor structures, interconnects, and multi-layered (3D) architectures to enhance density and performance.
Methods for temporarily attaching a wafer or substrate to a carrier for thinning, dicing, or other processing, followed by controlled debonding, often using light-sensitive resins, temporary adhesives, or roughened interfaces.
Novel electrical connection methods within or between package components, including through-glass vias (TGVs), backside contacts, and optimized redistribution layers for improved signal and power integrity.
Advanced techniques for forming and optimizing gate dielectrics, work function layers, and other dielectric layers within transistor structures to improve performance, reliability, and scaling.
Integrated solutions for dissipating heat generated by high-density semiconductor devices within the package, including embedded cooling structures, cold plates, and optimized fluidic channels.
Processes involving chemical and mechanical forces to planarize surfaces (CMP) or wet chemical treatments for cleaning, etching, or material removal, often utilizing specialized compositions, nozzles, or fluid management systems.
Development and application of resin compositions, molding compounds, and underfill materials to protect semiconductor devices from environmental factors, moisture, mechanical stress, and for structural integrity.
Physical layout and material composition of individual pixels within a display panel, including active layers, electrodes, light-emitting elements (LEDs, OLEDs), and associated thin-film transistors (TFTs).
Layout, material composition, and structural arrangement of photoelectric conversion elements and associated circuitry within image sensor arrays, including infrared detectors and back-side illuminated structures.
Development of novel chemical compositions for photoresists, including polymers, sensitizers, and crosslinking agents, to achieve improved lithographic performance such as resolution, sensitivity, line edge roughness, and etch resistance.
Techniques and apparatus for measuring critical dimensions, overlay accuracy, defect detection, and surface topography in lithographic processes, often involving optical, laser, or charged particle beams.
Methods and apparatus for precise wafer positioning, ion beam uniformity, and dose monitoring during ion implantation processes in semiconductor device manufacturing.
Systems and methods for delivering radio frequency (RF) power to plasma processing chambers, including impedance matching, pulse shaping, and feedback control for stable and efficient plasma generation.
The design and manufacturing of integrated circuits that combine optical and electronic components, particularly for high-speed data communication between processors and memory.
Engineering of artificial subwavelength structures (meta-atoms) to create metasurfaces that manipulate light properties (phase, polarization, wavelength) for multi-functional optical devices.
Development of memory cells utilizing resistive switching or phase-change materials, including novel material compositions, multi-layered structures, and integration with selector devices like bipolar junction transistors, to achieve non-volatile storage.
Methods for depositing thin films with controlled conformality, thickness, and material properties, including selective deposition on specific areas, often using atomic layer deposition (ALD), chemical vapor deposition (CVD), or epitaxial growth.
Methods and compositions for identifying, quantifying, or characterizing specific biological molecules (e.g., nucleic acids, proteins, metabolites, antibodies) or microbial species, often for diagnostic, prognostic, or quality control applications.
Patents
Showing 1-10 of 122