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 PXS Research maps this technology to Physical AI and the Materials & Critical Components, Grid, Power & Thermal…

Universe: Physical AI
Layer: Materials & Critical Components · Grid, Power & Thermal Infrastructure
Mapped: 6 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

416 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

Public companies exposed

NVTS (Navitas Semiconductor)
INDI (indie Semiconductor)
TXN (Texas Instruments)
STM (STMicroelectronics)
IFNNY (Infineon Technologies)
ON (ON Semiconductor)

Primary and supporting material

Sources

5 cited sources from the research vault and public framework used to define this capability.

01

Stocks mapped to this technology

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

INDIindie SemiconductorAutomotive ADAS semiconductors | Radar sensing | Vision processing | In-cabin sensing Physical AI Edge Compute & Control Silicon ACCUMULATE●●○○○ ●●○○○ $9Research target Aug 25, 2026Last reviewed ↗ NVTSNavitas Semiconductor Corp.GaN power ICs | SiC devices Physical AI Grid, Power & Thermal Infrastructure HOLD●●○○○ ●●○○○ $8.50Research target Jul 13, 2026Last reviewed ↗ NXPINXP SemiconductorsAutomotive radar and 4D imaging radar Physical AI Perception & Sensing WATCH●●○○○ ●●○○○ $250.35Research target Aug 3, 2026Last reviewed ↗ ONON SemiconductorSiC and GaN power semiconductors Physical AI Edge Compute & Control Silicon HOLD●●○○○ ●●○○○ $88.65Research target Aug 7, 2026Last reviewed ↗ STMSTMicroelectronics N.V.MEMS Inertial Sensors (accelerometers, gyroscopes) | Embedded Microcontrollers for Real-Time Control (STM32 family) Physical AI Edge Compute & Control SiliconPerception & SensingActuation & Motion Control ACCUMULATE●●○○○ ●●○○○ $54.43Research target Jul 10, 2026Last reviewed ↗ TXNTEXAS INSTRUMENTS INCAnalog and embedded processing semiconductors Physical AI Edge Compute & Control Silicon WATCH●●○○○ ●●○○○ $210.56Research target Jul 2, 2026Last reviewed ↗

02

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 PXS Research maps this technology to Physical AI and the Materials & Critical Components, Grid, Power & Thermal…

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, Grid, Power & Thermal Infrastructure.

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

PXS Research currently maps 6 public stocks to Gallium nitride (GaN) power semiconductors on silicon, including INDI, NVTS, NXPI, ON, STM, TXN.