SemiHow — Korean power MOSFET manufacturer: super junction, trench, SiC

Admin · 2026.10.26

SemiHow

A power semiconductor company in Incheon founded in 2002 by former Samsung Semiconductor engineers; it makes MOSFETs and IGBTs at Samsung Foundry.

KoreaFounded 2002ISO 9001 · 14001Produced at Samsung FoundryPower semiconductors

2002

Founded

110+ types

600–900V super junction MOSFETs (developed 2019)

80%+

Share produced on Samsung Foundry 8-inch line (since 2020)

110 million

700V SJ MOSFETs supplied for Galaxy chargers (2015)

At a glance

Company name	SemiHow Co., Ltd.
Headquarters	Seo-gu, Incheon (Cheongna; moved June 2023)
Founded	July 2002
Production	Samsung Foundry 8-inch line (over 80% of products since 2020)
Certifications	ISO 9001:2015, ISO 14001:2015, TRIAC UL certification (E355129)
Overseas sales	Shenzhen and Wuxi (China), Taiwan, India
Website	https://www.semihow.com

About the company

SemiHow is a power semiconductor specialist founded in 2002 by engineers who had spent more than 10 years on power semiconductor design, process and production technology at Samsung Semiconductor. Its headquarters moved to Cheongna, Incheon in 2023.

In 2004 it signed a technical support and foundry agreement with CR Micro (China), and in 2005 it launched high-voltage MOSFETs. It went on to release low-voltage trench MOSFETs, SCRs · TRIACs, IGBTs, super junction MOSFETs and more.

In 2018 it signed a strategic agreement with Samsung Foundry, and since 2020 more than 80% of its power discrete products have been made on Samsung Foundry's 8-inch line. Its products are used in phone chargers, adapters, PCs, EV chargers, servers, LED lighting, home appliances and automotive parts.

History

2002

SemiHow founded (July)

2005

High-voltage (HV) MOSFETs developed and launched

2012

TRIACs · SCRs launched, TRIAC UL certification

2018

Strategic agreement with Samsung Foundry, mass production of 700V-class SJ MOSFETs begins

2023

Strategic cooperation with SK keyfoundry, headquarters expanded and moved to Cheongna, Incheon

Main products

Super junction (SJ) MOSFETs

600–900V-class high-voltage MOSFETs for chargers, adapters and EV on-board chargers (OBC)

LV trench · SGT MOSFETs

60–100V-class low-voltage MOSFETs for automotive LED lighting and HVAC modules

Planar MOSFETs

Planar high-voltage MOSFETs through 5 generations

IGBT · power modules

650V · 1,200V · 1,400V · 1,600V-class IGBTs, IGBT · MOSFET modules, IPMs

SiC MOSFETs · diodes

SiC MOSFETs, Si/SiC diodes, GaN FETs, TRIACs · SCRs, BJTs

Applications

Phone chargersAdaptersPC power suppliesEV chargersServers · networkingLED lightingHome appliances (rice cookers · induction)Automotive (OBC · PTC heaters · inverters)

SemiHow resources on eGuro

· SemiHow MOSFET datasheets — 548 part numbers: super junction, LV trench, planar, SiC
https://eguro.kr/en/board/view.html?b=library&id=114

eGuro distributors

Companies that carry SemiHow products. Click a company name to see its contacts and stock.

GTRACER

Source: SemiHow website company profile · history · Samsung Foundry · applications · quality · sales offices (https://www.semihow.com, checked 2026-10-26). Each logo is a trademark of its respective company.

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