SJSUPERJUNCTIONSPOWERING A MORE EFFICIENT WORLD ⌕
ADVANCED POWER SEMICONDUCTOR TECHNOLOGY

Higher Voltage.
Lower Losses.
A Cleaner Tomorrow.

Superjunction technology is reshaping high-voltage power conversion — from silicon MOSFETs to SiC, GaN and emerging charge-engineered architectures.

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IndependentEngineering-firstEvidence-led
SUPERJUNCTION
Charge Balance. Higher Performance.
SOURCE
DRAIN
P-type pillarN-type pillarDrift region
↘Higher
Breakdown Voltage
⌁Lower
RDS(on)
▥Improved
Power Density
◉Greater
Efficiency
◒Enabling a
Greener Future
600V–1700V+Voltage classes across SJ research & products
RDS(on) × QgCore switching / conduction trade-off
>95%Efficiency target in many power-conversion systems
EV · Solar · AI · IndustrialWhere power density matters
Evidence FirstClaims separated from independent analysis
WHERE THE TECHNOLOGY MATTERS

From the device to the system.

Follow superjunction technology through real power-electronics architectures, from the silicon die to the equipment it enables.

Power semiconductor technology visualization
01 / DEVICE LIBRARY

Real devices. Real specifications.

Explore manufacturers, device families, voltage classes and official technical resources.

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02 / EV & CHARGING

More power. Less wasted energy.

Understand where SJ devices fit into PFC, DC-DC, onboard charging and fast charging.

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03 / RENEWABLE ENERGY

Power conversion for a cleaner grid.

Track device requirements for solar, storage and high-efficiency conversion.

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04 / AI & DATA CENTERS

Power density becomes infrastructure.

Follow the semiconductor path from AC input to the computing load.

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05 / INDUSTRIAL

Efficient power at scale.

Industrial drives, telecom, UPS and other demanding conversion systems.

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GLOBAL TECHNOLOGY ECOSYSTEM

Companies advancing power semiconductors.

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InfineonInfineonOfficial source ↗ STMicroelectronicsSTMicroelectronicsOfficial source ↗ onsemionsemiOfficial source ↗ ToshibaToshibaOfficial source ↗ ROHMROHMOfficial source ↗ VishayVishayOfficial source ↗ NexperiaNexperiaOfficial source ↗ Fuji ElectricFuji ElectricOfficial source ↗ WolfspeedWolfspeedOfficial source ↗

Company names and marks are used only for identification and navigation. Superjunctions.com is independent and does not imply endorsement, sponsorship or affiliation.

LATEST RESEARCH

Research radar

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08SEP
2026
RESEARCH

Intrinsic polarization superjunctions

Emerging III-nitride architectures use polarization engineering to create charge-balanced structures without conventional intentional doping.

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SJRADAR
TREND

Silicon → SiC → GaN

Track the migration of superjunction ideas into wide-bandgap power electronics.

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ENGINEERING TOOLS

Useful, not decorative.

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ϟLoss CalculatorConduction + switching▥FOM EstimatorDevice comparisonΘThermal CalculatorJunction rise↗Voltage MarginBus utilization
POWERING GLOBAL PROGRESS

Better power electronics.
Less wasted energy.

Superjunctions.com maps the technology behind more efficient power conversion.

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THE INTELLIGENCE LAYER

One place to move from curiosity to engineering judgment.

Read the physics. Compare the devices. Follow the companies. Run the first-order calculation. Then go to the original source.

01Technology encyclopediaPhysics, structures and trade-offs→02Device libraryProducts and official sources→03Research radarEmerging directions→04Research resourcesDatasheets, standards and databases→
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The useful question is not which device has the lowest headline RDS(on). It is which device minimizes total system loss under the actual voltage, current, frequency, temperature, topology and gate-drive conditions.

ENGINEERING PRINCIPLE · SUPERJUNCTIONS.COM
SUPERJUNCTIONS.COM

Powering a more efficient world.

Independent intelligence for the people building the next generation of power electronics.

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