Company patents

Monolithic 3D Inc.

Monolithic 3D Inc. has demonstrated a highly dynamic patent strategy, with a surprising surge in "Memory Devices (Structural)" patents in 2024, growing by +121.1% to 84 patents, indicating a strong, albeit short-lived, focus. However, the company appears to be rapidly shifting priorities across nearly all categories, with significant declines in patenting activity in 2025 and so far in 2026, including a complete cessation of new patents in "Integrated Circuit Layout & Arrangement" and "Transistor & Device Structure" in 2026.

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.

286 US filings (since 2023) · 12 categories · 12 themes

Advanced Memory Cell Structures

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.

Memory Devices (Structural)Memory & Storage (Static)
Who else files here? →
186since 2023
-48.8%YoY
3D Die Stacking & Vertical Interconnects

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.

Memory Devices (Structural)Semiconductor Packaging & EncapsulationMulti-Chip & 3D AssembliesChip-to-Chip Interconnect (Bonding, Bumps)Semiconductor Diodes & Transistors
Who else files here? →
159since 2023
-47.4%YoY
Novel Memory Transistor Architectures

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.

Transistor & Device Structure
Who else files here? →
158since 2023
-56.0%YoY
Advanced Metallization & Contacts

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.

Chip-to-Chip Interconnect (Bonding, Bumps)Semiconductor Diodes & Transistors
Who else files here? →
76since 2023
-59.3%YoY
Advanced Transistor Device Architectures

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.

Integrated Circuit Layout & Arrangement
Who else files here? →
74since 2023
-38.1%YoY
Semiconductor Device Manufacturing Processes

Techniques and methodologies for fabricating semiconductor devices, including etching, deposition, annealing, isolation, and doping steps, aimed at improving yield, performance, or enabling new structures.

Transistor & Device Structure
Who else files here? →
53since 2023
-73.3%YoY
Resistive & Phase Change Memory

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.

Memory Devices (Structural)Inorganic Devices (Thermoelectric, Piezo)
Who else files here? →
33since 2023
-70.0%YoY
Advanced Material Integration

Incorporation of novel semiconductor, dielectric, or metallic materials into transistor structures to achieve enhanced performance, new functionalities, or specific device characteristics.

Transistor & Device Structure
Who else files here? →
23since 2023
-50.0%YoY
Electronic System Layout & Integration

Automated methods and tools for generating, optimizing, and verifying the physical layout and interconnections of electronic components, including integrated circuits, printed circuit boards, and system-level interface protection.

Electronic Design Automation (CAD/EDA)
Who else files here? →
10since 2023
-50.0%YoY
Display Pixel Array Structures

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).

Integrated Circuit Layout & Arrangement
Who else files here? →
4since 2023
n/a
Gate Stack & Dielectric Engineering

Advanced techniques for forming and optimizing gate dielectrics, work function layers, and other dielectric layers within transistor structures to improve performance, reliability, and scaling.

Semiconductor Diodes & Transistors
Who else files here? →
2since 2023
new
Substrate Patterning & Processingfiltered

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.

Photolithography
Who else files here? →
1since 2023
new

Patents

Page 1 of 1