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Arsenic: The Toxic Critical Mineral Powering GaAs Semiconductors for AI

Arsenic: The Toxic Critical Mineral Powering GaAs Semiconductors for AI

David Rogers
2026-07-06

High-purity arsenic is the toxic but essential feedstock for GaAs compound semiconductors used in AI data center photonics and high-frequency RF. Explore arsenic refining challenges, extreme toxicity handling, China-dominated supply risks, recycling from GaAs waste, and its growing importance for AI infrastructure.

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Boron: The 1% Element Powering High-Performance NdFeB Magnets in AI Data Centers

David Rogers
2026-07-03

Boron makes up just 1–1.2% of sintered NdFeB permanent magnets but is essential for the magnetic strength, coercivity, and thermal stability needed in AI data center HDD spindle motors, cooling fans, and precision motors. Learn about the high-purity refining process, abundant global supply from the US and Turkey, China concentration risks in magnet production, and strong demand growth from the AI buildout.

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Boron: The 1% Element Powering High-Performance NdFeB Magnets in AI Data Centers
Neodymium Magnets: Powering AI Data Centers, Chip Manufacturing & the Supply Chain

Neodymium Magnets: Powering AI Data Centers, Chip Manufacturing & the Supply Chain

David Rogers
2026-07-02

Neodymium (NdFeB) magnets are critical to AI infrastructure. They power high-efficiency cooling motors in data centers and enable ultraprecision motion control in ASML EUV lithography machines. Explore surging demand, China’s dominance in the supply chain, Western production ramp-ups, and recycling efforts in 2026.

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Indium Supply Chain Risks for AI Data Centers: InP Lasers & China’s Silicon Photonics Pivot

David Rogers
2026-07-01

Indium powers InP lasers critical for 800G and 1.6T optical interconnects in AI data centers. Explore the complex refining process, China’s 70% dominance in indium production, export controls driving price spikes, looming supply shortfalls, and how Chinese firms like Huawei are mitigating risks through silicon photonics, quantum dot lasers, and co-packaged optics (CPO).

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Indium Supply Chain Risks for AI Data Centers: InP Lasers & China’s Silicon Photonics Pivot
Gallium: The Inelastic Byproduct Powering AI Semiconductors (GaN, GaAs & InP)

Gallium: The Inelastic Byproduct Powering AI Semiconductors (GaN, GaAs & InP)

David Rogers
2026-06-30

Gallium is a critical yet highly inelastic byproduct of aluminum and zinc refining, essential for GaN power devices, GaAs RF chips, and InP photonics that enable efficient AI data centers, high-speed interconnects, and 5G infrastructure. Learn about extreme purity requirements, steep marginal costs for additional supply, China’s 98–99% dominance, export controls, and emerging recycling and diversification efforts needed to secure the AI buildout.

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Copper in AI Data Centers: Power Delivery, Chip Interconnects & the 800V Shift

David Rogers
2026-06-29

Copper is critical for AI infrastructure, powering chip interconnects and high-density data center power delivery. Learn about refining processes, surging demand, sulphuric acid price signals, risks, and why the industry is shifting to 800V DC architectures to scale efficiently.

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Copper in AI Data Centers: Power Delivery, Chip Interconnects & the 800V Shift
Starting a Wafer: High-Purity Quartz from Spruce Pine and Silicon Powering AI Chip Production

Starting a Wafer: High-Purity Quartz from Spruce Pine and Silicon Powering AI Chip Production

David Rogers
2026-06-26

Discover how high-purity quartz (HPQ) from Spruce Pine, NC and silicon enable wafer starts for AI chips. Learn about fused quartz crucibles, the Czochralski process, Sibelco IOTA supply, wafer demand forecasts, and semiconductor materials risks.

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Tungsten Vias & Contacts: The Critical Mineral Powering AI Chip Interconnects

David Rogers
2026-06-25

Tungsten is essential for reliable vias and contacts in advanced AI semiconductors via WF6 CVD processes. Discover surging AI-driven demand, China’s ~80% control of production and refining, purity requirements, geopolitical supply risks, and emerging diversification efforts like new mines and recycling.

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Tungsten Vias & Contacts: The Critical Mineral Powering AI Chip Interconnects
Tantalum Capacitors Powering AI Servers: Supply Chain Challenges, Refining Process & Niobium Alternatives

Tantalum Capacitors Powering AI Servers: Supply Chain Challenges, Refining Process & Niobium Alternatives

David Rogers
2026-06-24

Explore how tantalum capacitors enable reliable power delivery in AI servers and GPU systems. Learn about the complex hydrometallurgical refining process, geopolitical supply concentration in the DRC, key manufacturers, surging AI-driven demand, and why engineers increasingly mix MLCCs, polymer aluminum, and niobium capacitors—retaining tantalum only where its unique performance metrics are essential.

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Hafnium High-k Dielectrics: Powering AI Chip Scaling Amid Supply Chain Risks

David Rogers
2026-06-23

Hafnium dioxide (HfO₂) is the critical high-k dielectric enabling transistor scaling in leading-edge AI chips from 3nm to 2nm nodes. Learn about hafnium extraction from zircon sands, global supply constraints, China’s dominance in separation, and promising US diversification projects like IperionX’s Titan for long-term semiconductor supply chain security.

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Hafnium High-k Dielectrics: Powering AI Chip Scaling Amid Supply Chain Risks