Physical AI · Research expansion in progress

Gallium nitride (GaN) power semiconductors on silicon technology and investment research

Wide bandgap GaN HEMTs grown on silicon substrates for high frequency, high efficiency power conversion at 15V–650V Daily PXS maps this technology to Physical AI and the Materials & Critical Components layer.

Universe: Physical AI
Layer: Materials & Critical Components
Mapped: 3 stocks
Editorial status: Research expansion in progress

What it is

Wide bandgap GaN HEMTs grown on silicon substrates for high frequency, high efficiency power conversion at 15V–650V

Why it matters

GaN enables smaller, lighter, cooler power supplies for robots, drones, and edge AI — critical for mobile autonomy where weight and thermal budget are constrained

Research expansion in progress

Gallium nitride (GaN) power semiconductors on silicon: technology and investment research

254 words · Vault research updated Jul 12, 2026

Technical bottleneck

Bottleneck type: Qualification / Manufacturing capacity
Technical constraint: GaN-on-Si epitaxy requires managing 17% lattice mismatch between GaN and Si; dynamic Rds(on) degradation from buffer trapping remains a reliability challenge; gate drive circuit sensitivity to parasitic inductance requires system-level co-design
Economic constraint: Established silicon MOSFET incumbents with depreciated fabs; qualification cycles for automotive/industrial (AEC-Q101) are 2-3 years; GaN cost premium vs. silicon narrows at higher voltages

Adoption

Driver: USB-C PD adoption creating volume; data center 48V bus conversion; robotics weight/size reduction; LiDAR and RF GaN demand
Blocker: Silicon MOSFET cost advantage at <100V; reliability perception in automotive; single-source risks for gate drivers

Public companies exposed

NVTS

PI

NXPI

INDI

TXN

Validation signals

NVTS revenue ramp; GaN design wins in EV on-board chargers and DC-DC; industrial motor drive GaN adoption for servo drives

Invalidation signals

SiC price reduction at <650V; GaN reliability field failures in automotive; Silicon super-junction MOSFET catching up in efficiency

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Stocks mapped to this technology

Compare the current investment signal, conviction, target and research freshness for each stock.

INDIindie Semiconductor, Inc.Automotive ADAS semiconductors | Radar sensing | Vision processing | In-cabin sensing Physical AI Perception & Sensing ACCUMULATE●●●○○ ●●●○○ $5.50Research target Jul 13, 2026Last reviewed ↗ NVTSNavitas Semiconductor Corp.GaN power ICs | SiC devices Physical AI Grid, Power & Thermal Infrastructure HOLD●●●○○ ●●●○○ $21.00Research target Jul 13, 2026Last reviewed ↗ TXNTEXAS INSTRUMENTS INCAnalog and embedded processing semiconductors Physical AI Edge Compute & Control Silicon WATCH●●○○○ ●●○○○ $298.00Research target Jul 2, 2026Last reviewed ↗

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Technology questions

Direct answers about the technology, its infrastructure layer and mapped public stocks.

What is Gallium nitride (GaN) power semiconductors on silicon?

Wide bandgap GaN HEMTs grown on silicon substrates for high frequency, high efficiency power conversion at 15V–650V Daily PXS maps this technology to Physical AI and the Materials & Critical Components layer.

Which universe and layer is Gallium nitride (GaN) power semiconductors on silicon mapped to?

Gallium nitride (GaN) power semiconductors on silicon is mapped to Physical AI across Materials & Critical Components.

Which stocks are mapped to Gallium nitride (GaN) power semiconductors on silicon?

Daily PXS currently maps 3 public stocks to Gallium nitride (GaN) power semiconductors on silicon, including INDI, NVTS, TXN.