Power Master Semiconductor

What Power Master Semiconductor does

Power Master Semiconductor Co., Ltd. is a privately-held Korean power semiconductor manufacturer headquartered in Cheongju (Chungcheongbuk-do) with an integrated 6-inch and 8-inch wafer fab on site and an R&D and sales office in Incheon. The company designs and manufactures discrete power devices for high-voltage (60V–1200V) applications, with its core technology stack spanning Silicon Carbide (SiC MOSFETs, SiC Diodes, SiC Modules), high-voltage Super-Junction MOSFETs (E7 and F7 series), medium-voltage MOSFETs (60V–150V), and field-stop trench IGBTs (650V–1200V). Process IP described as proprietary includes exclusive SiC trench technology with 3um trench depth and no micro trench, high-temperature/high-current implant at 600°C with up to 1.2MeV triple charge, and high-temperature oxidation and anneal at 2000°C/1500°C, operated in a Class 1 cleanroom with 0.4um photolithography and laser-anneal silicidation.

The company monetizes through two streams: hardware sales of its SiC and silicon-based discrete power device portfolio, and professional foundry services (Unit Process Service and 6-inch SiC Wafer Service) that monetize spare fab capacity for external customers. Its target verticals span automotive (xEV OBC, HV/LV DC-DC), cloud/data center and telecom power, DC EV charging (20kW–350kW), solar inverters, energy storage PCS, consumer adapters and chargers, display power, and industrial motor drives. AEC-Q101 automotive qualification on selected SiC MOSFETs signals design-in intent for automotive OEMs. The go-to-market is direct enterprise field sales with regional sales contacts in Korea and China, supported by participation in Electronica India and Electronica China trade shows and a multilingual (Korean/English/Chinese) website with application notes, selection guides, and sales inquiry forms.

Operationally the company is small and focused: two co-representatives (윤기명 / Yoon Ki-myung and 이재길 / Lee Jae-gil) are listed on its business registration, no headcount, funding events, or revenue figures are publicly disclosed, and the only stated certification is ISO 9001. The company's stated positioning — 'good price-performance alternative to leading makers' balanced across in-house and subcontractor manufacturing — implies a challenger rather than incumbent role in the global SiC power device market.

Name

Power Master Semiconductor

Legal name

Power Master Semiconductor Co., Ltd.

Website

https://powermastersemi.com

Company type

Private

Founded year

2018

Operating status

Operating

Headcount range

251–500 employees

Short description

Power Master Semiconductor is a privately-held Korean power semiconductor manufacturer that designs and produces Silicon Carbide (SiC) MOSFETs, SiC Diodes, SiC Modules, Super-Junction MOSFETs, MV MOSFETs, and IGBTs (60V–1200V) at its Cheongju fab, serving automotive, EV charging, solar, data center, and industrial customers.

Ownership category

akta.pro rank

Product category

Power Semiconductors

NAICS

Semiconductor and Related Device Manufacturing (334413), Semiconductor and Other Electronic Component Manufacturing (3344)

SIC

Semiconductors & Related Devices (3674), Electrical Industrial Apparatus (3620)

akta.pro primary industry

Wide-Bandgap Power Devices (SiC/GaN Discretes) (HDAHAHAG)

akta.pro secondary industries

Power Modules (IGBT/MOSFET/SiC/GaN Modules) (HDAHAHAH), High-Voltage, Power Discretes & Modules (IGBT/MOSFET/SiC/GaN) (HDAHAAAK), Power Semiconductor Foundries (BCD/Power IC Processes) (HDAHACAE), Wide-Bandgap (SiC/GaN) Power Modules, Gate Drivers & Packaging (EUAFAIAJ), Diodes & Rectifiers (Standard/Fast/Schottky) (HDAHAHAD)

Keywords

• Silicon carbide MOSFETs
• Power semiconductor devices
• Super junction MOSFETs
• IGBT power modules
• Wafer foundry services

Headquarters

HQ city

Chungju

HQ country

South Korea

HQ region

Asia

Offices2 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

Supply Chain, Technology or R&D, Personnel, Operations

Revenue model

1. Power Semiconductor Products: Sale of SiC MOSFET, SiC Diode, HV SJ MOSFET, MV MOSFET, IGBT, and SiC Module products for power conversion applications.
2. Foundry Services: Unit process services and wafer services for both 8 inch Silicon and 6 inch SiC processing, including front-end processing, thinning, and back metallization.

Go-to-market motion2 records

Distribution channels2 records

Marketing channels4 records

Core offering

Power Master Semiconductor is a South Korean fabless power semiconductor company that designs and supplies Silicon Carbide (SiC) MOSFETs, SiC diodes, SiC modules, super junction MOSFETs, medium-voltage MOSFETs, and IGBT discrete devices targeting high-efficiency power conversion. The company also operates a wafer foundry business offering both unit-process and full-process fabrication services for SiC-based and Si-based semiconductor processes.

Product overview

Power Master Semiconductor is a power semiconductor company offering a portfolio of Silicon Carbide (SiC) and Silicon-based discrete power semiconductor devices along with foundry services. The core product line includes SiC MOSFETs, SiC Diodes, and SiC Modules (wide-bandgap power devices), complemented by HV Super Junction MOSFETs and MV MOSFETs (silicon-based devices), and IGBTs. The SiC products (MOSFETs, Diodes, Modules) target high-efficiency applications like EV charging, solar inverters, energy storage systems, and server power. The foundry services division provides 6-inch SiC wafer processing and unit process services for custom development and manufacturing of SiC Diode and MOSFET products.

Differentiator

Problem solved

Functional benefit

Products and services

• 650V SiC MOSFETs
• 1200V Gen3 SiC MOSFETs
• 1200V Gen2 eSiC MOSFETs
• Automotive 1200V eSiC MOSFET
• 650V eSiC MOSFET (TOLL package, P08Y24)
• SiC Diodes (650V and 1200V)
• SiC Modules
• HV Super Junction MOSFETs
• MV MOSFETs
• IGBTs
• TSPAK Top-Side Cooling Packages
• Wafer Foundry Services

Segments8 records

Ideal customer profiles4 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature7 records

Scale indicators1 record

Recent moves6 records

Expansion highlights5 records

Direct peers

• Wolfspeed: Pure-play SiC power device and substrate supplier with vertically integrated 6-inch/8-inch SiC fab. Most direct comparable in SiC MOSFET/Diode/module technology and end-market focus (EV, industrial, energy).
• Vishay Intertechnology: Broad-line discrete semiconductor and passive component manufacturer with MOSFETs, IGBTs, and diodes. Competes with Power Master's HV super-junction and MV MOSFET portfolios in industrial, computing, and consumer power applications.
• Alpha & Omega Semiconductor: Power discrete specialist offering MOSFETs, IGBTs, SiC, and power ICs with similar mid-sized scale and a focus on consumer, computing, and automotive sockets. Closely comparable in product breadth (silicon + SiC) and target customer profile.
• ON Semiconductor (onsemi): Global IDM with a broad SiC and silicon power discrete portfolio (including EliteSiC) targeting EV, industrial, and server applications. Direct competitor in 650V–1200V SiC MOSFETs and power modules serving overlapping automotive and energy-infrastructure customers.
• Rohm Semiconductor: Japanese SiC leader (SiC MOSFETs, Schottky diodes, full SiC modules) with own substrate supply and AEC-Q101 automotive portfolio. Direct competitor in 650V/1200V SiC discretes and modules for xEV and industrial applications.

Broad incumbents

• STMicroelectronics: Major IDM offering SiC MOSFETs and diodes (STPOWER) plus silicon IGBT/MOSFET. Directly competes in automotive traction, OBC, DC-DC, and industrial power conversion—the same verticals Power Master prioritizes.
• Mitsubishi Electric: Established Japanese power semiconductor manufacturer with a strong IGBT and SiC module portfolio targeting industrial, rail, and EV traction. Overlaps with Power Master's IGBT and SiC module offerings in industrial and automotive.
• Infineon Technologies: Largest power semiconductor IDM with CoolSiC SiC MOSFETs, IGBTs, and gate drivers across automotive, solar, and data center end-markets. Competes head-to-head with Power Master across the entire 60V–1200V discrete and module portfolio but at vastly greater scale.
• Toshiba Electronic Devices & Storage: Japanese power semiconductor vendor with SiC MOSFETs, silicon MOSFETs, and IGBTs serving industrial, automotive, and consumer. Directly comparable in silicon-based discrete coverage and in select 650V/1200V sockets.

Emerging players

• GeneSiC Semiconductor: US-based SiC-focused startup offering SiC MOSFETs, Schottky diodes, and modules with novel cell architectures. Comparable as a smaller-scale, technology-led SiC peer pursuing similar automotive and industrial design-wins.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks6 records

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/company/power-master-semiconductor

Revenue estimate

Valuation estimate

Number of profiles

Profiles2 records

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Power Master Semiconductor