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|---|---|---|---|---|---|---|
 |
ABB SEMICONDUCTORS [1988] | High Power Diodes, IGBTs, GTOs, PCTc, BCTs, Thyristors |  |
REP | ||
 |
ADVANCED POWER ELECTRONICS [1998] | MOSFETs, IGBTs |  |
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 |
ADVANCED POWER TECHNOLOGY [1984] {acquired by Microsemi in 2005} |
Power MOSFETs, UF & Schottky Diodes |  |
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 |
ADVANCED SEMICONDUCTOR [1979] | RF Power Transistors | |
|
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 |
AEROFLEX [1937] {acquired by Cobham in 2014} |
RadHard Discretes | |
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 |
ALPHA & OMEGA SEMICONDUCTOR [2000] | MOSFETs, TVSs | |
|
||
 |
ALPHA INDUSTRIES [1962] {see Skyworks Solutions from 2002} |
PIN Diodes, GaAs FETs, PHEMTs | |
|||
| ALPHA POWER SOLUTIONS [2015] | SiC Diodes & MOSFETs, SiC Modules |  |
||||
 |
AMAZING MICROELECTRONIC [2006] | TVSs | |
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 |
AMPLEON [2015] {spun-off from NXP} |
RF LDMOS & GaN Transistors |  |
|
||
 |
ANALOGICTECH [1998] {acquired by Skyworks in 2011} |
MOSFETs | |
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 |
ANBON SEMICONDUCTOR [2017] | SiC Schottky Diodes & MOSFETs, IGBTs | |
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 |
ANGSTREM [1963] |
IGBTs |  |
|
||
 |
ANPEC ELECTRONICS [1997] | MOSFETs | |
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| APD SEMICONDUCTOR [2000] {acqiured by Diodes in 2006} |
SBR Schottky Diodes | |
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 |
APEI [1997] {acquired by Cree in 2015} |
SiC Power Modules | |
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 |
ASC SEMICONDUCTORS [1988] | Diodes | |
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 |
AT ELECTRONICS [????] | SiC Schottky Diodes & MOSFETs, IGBTs | |
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 |
AVAGO TECHNOLOGIES [2005] {H-P Semiconductor Div. before 2006} {former Agilent Technologies (SPG)} {merged with Broadcom in 2015} {rebrended to Broadcom in 2016} |
UHF Discretes | |
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| b |
||||||
 |
BASiC SEMICONDUCTOR [2016] | SiC Schottky Diodes & MOSFETs | |
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| BKC SEMICONDUCTOR [1985] {acquired by Microsemi in 1998} |
Diodes, Zener Diodes | |
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 |
BOSCH [1886] | Diodes, SiC MOSFETs & Modules |  |
|
||
 |
BYD SEMICONDUCTOR [2004] {formerly Shenzhen BYD Microelectronics } |
Automotive MOSFETs & IGBTs | |
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 |
BYTESONIC ELECTRONICS [1984] | Diodes, Rectifiers | |
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| c |
||||||
| CALY TECHNOLOGIES [2014] | SiC Schottky Diodes & Current Limiting Devices |  |
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 |
CAMBRIDGE GAN DEVICES [2016] | GaN HEMTs |  |
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 |
CENTRAL SEMICONDUCTOR [2014] | Bipolar & MOSFET Transistors, JFETs, Diodes, Rectifiers, Triacs | |
|
||
 |
CET-MOS [1984] | MOSFETs | |
|
||
 |
CHANGJING ELECTRONICS TECHNOLOGY [2018] | Bipolar Transistors, MOSFETs, Diodes | |
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| CHELTON TELECOM & MICROWAVE [2004] {avionics division of Cobham} |
RF Diodes | |
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 |
CICLON SEMICONDUCTOR DEVICE [2004] {acquired by Texas Instruments in 2009} |
MOSFETs & RF LDMOS | |
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| CLAS-SIC [2017] | SiC foundry with 150mm wafers | |
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| CLIFTON SEMICONDUCTOR [2000] {filed for bankruptcy in 2016} |
GaAs Rectifier Diodes |  |
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| COBHAM ADVANCED ELECTRONIC SOLUTIONS [1934] | GaN Discretes | |
||||
| COMCHIP TECHNOLOGY [2000] | smd Diodes, TVSs | |
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 |
COMPENSATED DEVICES [1974] {acquired by Microsemi in 2001} |
Diodes, Rectifiers | |
|||
| CONCORD SEMICONDUCTOR [????] {acquired by Littelfuse in 2006} |
TVS Diodes | |
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 |
CONTINENTAL DEVICE INDIA [1864] | Diodes, Bipolar Transistors |  |
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| COOLAUDIO [1990] | Transistors | |
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 |
CR MICRO [2013] | Power Discrets | |
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 |
CREE [1987] {see Wolfspeed from 2021} |
SiC MOSFETs & Schottky Diodes, GaN HEMTs | |
|
||
| CRYSTALONICS [1958] | Diodes, Bipolar & JFET Transistors | |
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 |
CYSTECH ELECTRONICS [2002] | Diodes, Bipolar Transistors, MOSFETs | |
|
||
| d |
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 |
DACO SEMICONDUCTOR [1994] | SiC MOSFETs, IGBTs | |
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 |
DAWIN ELECTRONICS [2001] {acquired by Magnachip in 2012} |
IGBT & MOSFET Modules, Thyristors, Rectifiers |  |
|||
 |
DC COMPONENTS [1992] | Diode Rectifiers, Bridge Rectifiers | |
|||
 |
DEAN TECHNOLOGY [1989] | HV Diodes | |
|
||
 |
DIODES [1959] |
Schottky &Zener Diodes, TVSs, Bipolar Transistors, MOSFETs | |
|
||
 |
DIOTEC SEMICONDUCTOR [1973] {part of Semikron in 1999-2001} |
Diodes, Rectifier Bridges, Transistors, MOSFETs | |
REP | |
|
 |
DIRECTED ENERGY [1987] {acquired by Ixys in 2000} {particial managment buyuot in 2018} {acquired by Berkely Nucleonics in 2021} |
RF MOSFETs | |
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 |
DISCRETE SEMICONDUCTOR INDUSTRIES [1985] | Diodes, Transistors, Thyristors | |
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 |
DYNEX SEMICONDUCTOR [1956] {acquired by CRRC in 2008} |
Thyristors, GTOs, IGBTs | |
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| e |
||||||
 |
EFFICIENT POWER CONVERSION [2007] | GaN Transistors | |
|
||
 |
EIC SEMICONDUCTOR [1984] | Rectifier Diodes |  |
|||
 |
ELECTROVIPRYAMITEL [1941] | IGBTs, Thyristors, Triacs, Diodes | |
|||
 |
ERIS TECHNOLOGY [1995] | Diodes, Schottky Diodes, Zener Diodes, TVS, MOSFET | |
|||
 |
EUPEC [1990] {JV of Siemens and AEG} {merged with Infineon in 2006} |
Power Semiconductors | |
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 |
EXCELICS SEMICONDUCTOR [1995] {see IC Valley now} |
FETs | |
|
||
| EXICON [1993] | Audio MOSFETs | |
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| f |
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 |
FAGOR ELECTRONICA [1966] | Diodes, Zeners, TVSs, Thyristors |  |
|
||
 |
FAIRCHILD SEMICONDUCTOR [1957] {acquired by ON Semi in 2015} |
JFETs, MOSFETs, Diodes | |
|||
 |
FILTRONIC SOLID STATE [1977] {acquired by Teledyne Technologies in 2004} {acquired by RFMD in 2007} |
Gunn Diodes, FETs | |
|||
 |
FIRST SENSOR [1993] {acquired by TE Connectivity in 2020} |
Space Grade Power MOSFETs & HV Diodes | |
|||
| FORCE-MOS TECHNOLOGY [2006] | Diodes, Transistors, TVS | |
||||
 |
FUJI SEMICONDUCTOR [1923] {JV between Siemens and Furukawa Electric} |
Diodes, MOSFET's, IGBT's |  |
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 |
FUJITSU MICROELECTRONICS [1935] | MOSFETs | |
|
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|
FUJITSU COMPOUND SEMICONDUCTOR | GaAs FETs, Lasers, Photodiodes | |
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 |
FULTEC SEMICONDUCTOR [2001] {acquired by Bourns in 2008} |
Surge Protectors | |
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| FUXIN JIALONG ELECTRONICS [1965] | Diodes, Thyristors | |
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| g |
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 |
GALAXY SEMICONDUCTOR [1964] | Diodes, Rectifiers, Transistors | |
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 |
GALLIUM SEMICONDUCTOR [2021] [1960] {acquired by Guerrilla RF in 2024} |
GaN RF Amplifiers |  |
|||
| GAN SYSTEMS [2008] {acquired by Infineon in 2023} |
GaN Transistors |  |
|
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 |
GENERAL SEMICONDUCTOR [1960] {spun-off from General Instruments in 1997} {acquired by Vishay in 2001} |
Schottky & Zener Diodes, TVSs | |
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 |
GENESIC SEMICONDUCTOR [2002] {acquired by Navitas in 2022} |
SiC Diodes, Transistors | |
@.RU | |
|
| GENTRON [????] {acquired by Teledyne Relays in 1996} |
MOSFET & IGBT Modules | |
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 |
GHZ TECHNOLOGY [1991] {acquired by Advanced Power Technology in 2001} |
RF & MW Power Transistors | |
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 |
GLOBAL POWER TECHNOLOGY [2011] | SiC Schottky Diodes | |
|||
 |
GOOD-ARK [1990] | Diodes, Rectifiers | |
|||
| GREAT WALL SEMICONDUCTOR [2002] {acquired by Intersil in 2015} |
MOSFETs | |
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 |
GREEN POWER SEMICONDUCTORS [1998] | Power Diodes, Thyristors, Voltage Suppresors |  |
|||
| h |
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| HESTIA POWER [2013] | SiC MOSFETs & Schottky Diodes | |
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 |
HEXAWAVE [1991] | GaAs MESFETs | |
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 |
HITACHI POWER SEMICONUCTORS DEVICE [2013] {spun-off from Hitachi} {acquired by Minebea Mitsumi in 2023} |
MOSFETs, IGBTs, Diodes | |
REP | |
|
| HIVRON [2003] | Power Modules: Diodes, MOSFETs, IGBTs | |
||||
 |
HOTTECH SEMICONDUCTOR [1992] | Diodes, Transistors | |
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 |
HSIN SEMICONDUCTOR [1984] | Bipolar Transistors, TRIACs | |
|||
| HSMC [????] | Diodes, Transistors | |
||||
| HUAYUE MICROELECTRONICS [1997] | Diodes, Transistors | |
||||
 |
HUAJING RECTIFIER [1992] | Diodes, Thyristors, SSRs | |
|||
 |
HUAXUANYANG ELECTRONIC [2008] {brand name HXY MOSFET} |
MOSFETs | |
|||
 |
HUTSON INDUSTRIES [1965] {stopped operations in 2015} |
DIACs, SCRs, TRIACs | |
|||
 |
HV COMPONENT ASSOCIATES [1962] {acquired by Dean Technology in 1989} |
HV Diodes | |
|
||
 |
HY ELECTRONICS [1984] | Diodes, Rectifiers, MOSFETs | |
|||
| i |
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 |
INCHARGE SEMICONDUCTOR [1991] | Power Transistors, Diodes, Thyristors | |
|||
 |
INFINEON TECHNOLOGIES [1999] {former Siemens Semiconductor} |
MOSFETs & IGBTs | |
REP | |
|
 |
INNOSCIENCE [2015] | GaN HEMTs | |
|||
| INTEGRA TECHNOLOGIES [1983] | Microwave & RF Power Transistors | |
|
|||
 |
INTERFET [1982] | JFETs | |
|
||
 |
INTERNATIONAL RECTIFIER [1947] {Power Control business purchased by Vishay in 2006} {acquired by Infineon in 2014} |
MOSFETs, IGBTs, Power Diodes | |
|
||
| INTERSIL [1967] {Harris Semiconductor before 1999} {CMOS Logic family sold to TI} {"discrets" acquired by Fairchild in 2001} {acquired by Renesas in 2016} |
MOSFETs, Diodes | |
|
|||
 |
ISAHAYA ELECTRONICS [1973] | Transistors, Diodes, IGBT-Drivers | |
|||
 |
IXYS [1983] {acquired by Littelfuse in 2017} |
MOSFETs, IGBTs, FREDs, Power Modules | |
REP | |
|
| j |
||||||
 |
JINGDAO MICROELECTRONICS [2013] | MOSFETs, Diodes, Rectifier Bridges, TVSs, Thyristors | |
|||
 |
JJMICROELECTRONICS [1995] {founded as JieJie Microelectronics} |
MOSFETs, IGBTs, Diodes, Rectifier Bridges, TVSs, Thyristors | |
|||
 |
JSMICRO SEMICONDUCTOR [2005] | MOSFETs, Diodes, Rectifier Bridges | |
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| k |
||||||
 |
KEC | Transistors, Diodes, FETs, Thyristors | |
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 |
KIA SEMICONDUCTOR [2005] | MOSFETs, Diodes | |
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 |
KINGTRONICS [1990] | Diodes & Transistors | |
|
||
| KNOX SEMICONDUCTOR [1974] {semi-business acqired by Micrometrics in 2005} {part of Aeroflex from 2007} |
HiRel Diodes | |
||||
 |
KUU SEMICONDUCTOR [2011] [intl. brend of Yongyutai Electronics} |
Diodes, Transistors | |
|||
| l |
||||||
 |
LEAPERS SEMICONDUCTOR [2019] | SiC & IGBT Modules | |
|||
 |
LESHAN RADIO COMPANY [1971] | Diodes, Transistors, Bridge Rectifiers | |
|||
 |
LGE [2002] | Diodes, Bipolar & MOS Transistors | |
|||
 |
LINEAR SYSTEMS [1986] |
Small Signal Discretes, Low Leakage Diodes, Transistors | |
|
||
 |
LITE-ON SEMICONDUCTOR [1990] {acquired by Diodes in 2019} |
Diodes, Rectifiers, TVSs | |
|||
| LUNSURE ELECTRONIC [2003] | Diodes, Bridge Rectifiers | |
||||
 |
LZG ELECTRONICS [2005] | Bipolar & MOS Transistors, Diodes | |
|||
| m |
||||||
| M-MOS SEMICONDUCTOR [2004] {acquired by X-Fab in 2023} |
MOS Transistors | |
||||
 |
MACMIC SCIENCE & TECHNOLOGY [2006] | MOSFETs, IGBTs, Power Modules | |
|||
 |
MACOM [1950] {acquired by AMP from 1981} {part of Tyco from 1999} {acquired by Cobham in 2008} {acquired by John Ocampo in 2009} |
RF Power Transistors & Modules | |
REP | |
|
 |
MAGEPOWER SEMICONDUCTOR {bankruptcy in 2005} |
MOSFETs | |
|||
 |
MAGNACHIP [2004] {spin-off from Hynix in 2004} {acquired by Wise Road Capital in 2021} |
MOSFET & IGBT Transistors | |
|||
| MASPOWER [2013] | MOSFETs, IGBTs, FRDs | |
||||
| MASSACHUSETTS BAY TECHNOLOGIES [1999] | RF Diodes | |
||||
 |
MASTER INSTRUMENT INDIA [1988] | Diodes, Bipolar Transistors | |
|||
 |
MATSUKI ELECTRIC [1958] | Diodes, MOSFETs | |
|||
| MAXPOWER SEMICONDUCTOR [2007] {acquired by Vishay in 2022} |
Power MOSFETs | |
||||
| MDE SEMICONDUCTOR [1987] | Thyristors, TVSs, Varistors | |
||||
| METELICS [2003] {part of Aeroflex} |
RF & PIN & Tunnel Diodes | |
||||
 |
MICRO COMMERCIAL COMPONENTS [1991] {acquired by Yangjie in 2015} |
Diodes, Transistors, Surge Protectors | |
|
||
 |
MICRO ELECTRONICS | Diodes, Bipolar Transistors | |
|||
 |
MICRODIODE ELECTRONICS [2008] | Diodes, Bipolar Transistors, MOSFETs | |
|
||
| MICROGAN [2002] {out of business from 2019} |
GaN Diodes&Transistors | |
||||
| MICROMETRICS [1986] {acqired by Aeroflex in 2007} |
RF/MW Diodes | |
||||
 |
MICROSEMI [1960] {acquired by Microchip in 2018} |
Diodes, Zeners, Bipolar Transistors, MOSFETs | |
|
||
 |
MICROWAVE TECHNOLOGY [1982] {acquired by Ixys in 2003} {repurchased from Littelfuse by ex-owners in 2019} {acquired by CML Micro in 2023} |
GaAs & GaN FETs, Gunn Diodes | |
|
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| MINEBEA MITSUMI [1951] | MOSFETs & IGBTs | |
||||
 |
MINI-CIRCUITS [1968] | RF Diodes | |
|
||
 |
MITSUBISHI ELECTRIC SEMICONDUCTORS [1921] | MOSFETs & IGBTs | |
|
||
| MONOLITH SEMICONDUCTOR [2013] {acquired by Littelfuse in 2018} |
SiC Diodes & MOSFETs | |
||||
 |
MOSEL-VITELIC [1991] {merger of Mosel Electronics and Vitelic} |
MOSFETs & IGBTs, FREDs | |
|||
 |
MOSPEC SEMICONDUCTORS [1987] | Power Discretes | |
|||
 |
MOTOROLA [1928] {spun-off On Semi in 1999 and Freescale in 2003} |
RF Transistors, Diodes | |
|||
 |
MOXTEK [1986] | JFET Transistors | |
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| n |
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 |
NAINA SEMICONDUCTOR [1988] | Diodes, Bipolar Transistors | |
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| NAVITAS SEMICONDUCTOR [2014] | GaN FETs | |
|
|||
 |
NEC ELECTRONICS [2002] {subsidiary of NEC Corp.} {merged with Renesas in 2010} |
Bipolar & FET Transistors, Diodes | |
|||
| NEWPORT WAFER FAB [2017] {built by Inmos in 1982} {belonged later to STM, IR and Infineon} {acquired by Nexperia in 2021} {acquired by Vishay in 2023} |
Compound Discretes Foundry | |
||||
 |
NEXPERIA [2017] {spun-off from NXP in 2016} |
Diodes, Bipolar Transistors, MOSFETs, TVSs | |
|
||
 |
NIHON INTER ELECTRONICS [1957] {acquired by Kyocera in 2015} |
Diodes, Thyristors | |
|||
| NIKO SEMICONDUCTOR [1998] | MOSFETs, SiC Diodes | |
||||
| NITRONEX [1999] {acquired by Gaas Labs in 2012} {acquired by Macom in 2014} |
GaN-on-Si RF Power Devices | |
||||
| NOLETEC [2011] | GaN Transistors |  |
|
|||
| NORTHROP GRUMMAN [1994] {merger of Northrop and Grumman} |
HiRel RF Transistors | |
|
|||
 |
NXP SEMICONDUCTORS [2006] {spun-off from Philips Semiconductors in 2006} |
Diodes, Bipolar Transistors, MOSFETs, Thyristors | |
@.RU | REP | |
| o |
||||||
| ODYSSEY SEMICONDUCTOR [2019] {acquired by Power Integrations in 2024} |
Vertical GaN FETs | |
||||
 |
OKI SEMICONDUCTOR | MOSFETs | |
REP | ||
 |
OMNIREL [1985] {subsideary of Zing from 1991} {acquired by IR in 2000} |
MOSFETs, IGBTs, Schottky Diodes | |
|||
 |
ON SEMICONDUCTOR [1999] {spun-off from Motorola in 1999} |
Diodes, Transistors, Thyristors | |
|
||
 |
Oriental Semiconductor [2008] | MOSFETs & IGBTs | |
|||
| p |
||||||
| PANJIT [1986] | Diodes, Rectifiers, Schottky & Zener Diodes, TVSs | |
||||
| PEAK DEVICES [2000] {acquired by Triquint Semiconductor in 2007} |
RF Bipolar & LDMOS Transistors | |
||||
 |
PHILIPS SEMICONDUCTORS [1953] {see NXP Semiconductors from 2006} |
Bipolar Transistors, MOSFETs, Thyristors | |
|||
 |
PLANETA [1960] | RF Diodes & Transistors, Thyristors | |
|||
 |
PN JUNCTION SEMICONDUCTOR [2018] | SiC MOSFETs & Schottky Diodes, GaN HEMTs | |
|||
 |
POLOVODICE [1964] {acquired by ABB in 2010} |
Power Modules, Diodes |  |
|||
 |
POLYFET RF DEVICES [1988] | RF Power MOSFETs | |
@.RU | |
|
| POSEICO [2001] | Diodes, Thyristors, IGBTs | |
||||
| POWDEC [2001] | GaN FET Transistors | |
||||
 |
POWER INNOVATIONS [1997] {management buyout from TI} {acquired by Bourns in 2000} |
Bipolar Transistors, Protection Diodes | |
|||
 |
POWEREX [1986] {JV of General Electric, Westinghouse and Mitsubishi Electric} {50/50 GE/Mitsubishi from 1994} |
Power Darlingtons, IGBT & MOSFET Modules, SiC Products | |
|||
| POWER MASTER SEMICONDUCTOR [2018] | SiC Diodes & MOSFETs | |
||||
 |
POWERSEM [1985] | Power Modules | |
|||
| POWERTECH [1968] | Power Bipolar Transistors | |
||||
 |
PROTEK DEVICES [1992] | TVSs | |
|
||
 |
PROTON-ELECTROTEX [1996] | Diodes, Thyristors | |
|||
| q |
||||||
| QPT [2019] | Power GaN Modules | |
||||
| r |
||||||
 |
REASUNOS SEMICONDUCTOR TECHNOLOGY [2007] | MOSFETs | |
|||
 |
RECTRON [1976] | Diodes, Rectifiers, TVS's, Zeners | |
|
||
 |
RFHIC [1999] | GaN-on-SiC Transistors | |
|
||
 |
ROHM SEMICONDUCTOR [1958] |
Digital Transistors, Diodes, MOSFETs | |
REP | |
|
| s |
||||||
 |
SAMHOP MICROELECTRONICS [1992] | MOSFETs | |
|||
 |
SANAN IC [2014] | SiC Schottky Diodes, Compound Foundry | |
|||
| SAMWIN [2008] | Diodes, MOSFETs | |
||||
 |
SANKEN ELECTRIC [1946] | Diodes, Bipolar & MOSFET Transistors | |
|||
| SANREX [1982] {subsidary of Sansha Electric} |
Power Semiconductors | |
||||
 |
SANYO SEMICONDUCTOR [1947] {acquired by ON Semi in 2010} |
MOSFETs | |
|||
| SAVANTIC ELECTRONICS [2000] | Bipolar Transistors |  |
||||
 |
SCOMES [1954] | Power Modules | |
|
||
| SECOS [1998] | Diodes, Transistors | |
||||
 |
SEMELAB [1972] {acquired by TT Electronics in 2008} |
RF MOSFETs, Super Fast Diodes | |
|||
 |
SEMICOA SEMICONDUCTORS {acquired by Microsemi in 2008} {comeback in 2009} |
Bipolar Transistors | |
|||
 |
SEMICONDUCTOR TECHNOLOGY | Bipolar Transistors, MOSFETs | |
|||
 |
SEMIKRON DANFOSS [1951] (merged with Danfoss Silicon Power in 2022} |
Diodes, Thyrisrors, MOSFET & IGBT Modules | |
REP | |
|
 |
SEMIQ [2007] {previously known as Global Power Technologies Group} |
SiC Diodes & MOSFETs | |
|||
| SEMISOUTH LABORATORIES [2001] {closed in 2012} |
SiC Diodes | |
||||
 |
SEMITRON INDUSTRIES [1963] {part of Crydom from 1998} {acquired by Littelfuse in 2002} |
TVSs | |
|||
 |
SEMITRONICS [1952] | HiRel Discretes | |
|||
 |
SEMTECH [1960] | HiRel Diodes, TVSs | |
|
||
 |
SEMTECH ELECTRONICS [1991] {subsidiary of Sino-Tech International} |
Diodes & Transistors | |
|
||
| SENSITRON SEMICONDUCTOR [1969] | Diodes, MOSFETs, IGBTs, incl. SiC | |
|
|||
 |
SHANGHAI SUNRISE ELECTRONICS [1993] | Diodes, Zeners, TVSs | |
|||
| SHANGLANG ELECTRONIC TECHNOLOGY [2000] | Diodes, Bridge Rectifiers | |
||||
 |
SHIKUES [2008] | Diodes, Bridges, TVS, MOSFETs | |
@.RU | |
|
 |
SHINDENGEN [1949] | MOSFETs, Bipolar Transistors, Diodes | |
|
||
| SILICONIX [1962] {acquired by Vishay in 1998} |
MOSFETs | |
||||
| SILICON WIRELESS [2000] | Diodes, Rectifiers | |
||||
| SILIKRON [2007] | MOSFETs, Schottky Diodes, FREDs, TVSs | |
||||
 |
SILVERMICRO ELECTRONICS [2007] | IGBT & MOSFET Modules, Diode Modules, SCR Modules | |
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| SIRECT SEMICONDUCTORS [2002] | Diodes, Transils | |
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 |
SLKOR MICRO SEMICON [2015] | MOSFETs, Schottky Diodes, FREDs, TVSs | |
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| SMC DIODE SOLUTIONS [1997] | Diodes, SiC Shottky Diodes, SiC MOSFETs | |
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 |
SOLID STATE DEVICES [1967] | Diodes, Transistors, Thyristors, IGBTs, MOSFETs in Ceramic Packages | |
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 |
SOLITRON DEVICES [1959] | Mil-Grade Diodes, IGBTs, MOSFETs, incl. SiC | |
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 |
SPECTRIAN [1995] {acquired by Cree in 2000} |
RF Transistors | |
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 |
STANFORD MICRODEVICES [1985] {changed name to Sirenza in 2001} {acquired by RFMD in 2007} |
GaAs FETs | |
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 |
ST MICROELECTRONICS [1987] {merger of SGS and Thomson Semi} {renamed to STM in 1998} |
MOSFETs, Bipolar Transistors, Diodes, TVSs | |
REP | |
|
| STANSON TECHNOLOGY [1981] | MOSFETs, Schottky Diodes | |
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 |
STARPOWER SEMICONDUCTOR [2005] | IGBT, MOSFET, IPM, FRD & Rectifier modules | |
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SULY ELECTRONICS [2008] | HV Diodes | |
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SUMITOMO ELECTRIC DEVICE INNOVATIONS [2000] | GaN HEMTs, GaAs FETs | |
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 |
SUNMATE SEMICONDUCTOR [2010] | Diodes, TVSs | |
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| SUPERTEX [1976] {acquired by Microchip in 2014} |
MOSFETs, IGBTs | |
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 |
SURGE COMPONENTS [1981] | Diodes, Zener Diodes, ESD & TVS Diodes | |
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SUSSEX SEMICONDUCTOR [1980] | Transiet Suppressors, Zeners, Rectifiers | |
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| t |
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TAK CHEONG ELECTRONICS [1997] | Diodes, Transistors | |
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| TAILIAN POWER ELECTRON [2006] | Diodes, Thyristirs, Triacs | |
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TAIWAN SEMICONDUCTOR [1979] | Diodes, Transistors, TVSs | |
|
||
| TASUND TECHNOLOGY [2012] | Diodes, Transistors, TVS | |
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TECCOR ELECTRONICS [1964] {acquired by Littelfuse in 2003} |
DIACs, Rectifiers, SCRs, TRIACs, TVSs | |
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 |
TECH SEMICONDUCTORS [1966] | Power Thyristors & Diodes | |
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TONGKE ELECTRONICS (CTK) [2010] | Transistors, Diodes, MOSFETs, TVS Diodes, Bridge Rectifiers | |
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 |
TOPDIODE [1996] | Transistors, Diodes, Zener&Schottky Diodes, TVS Diodes, Bridge Rectifiers | |
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TOSHIBA ELECTRONIC DEVICES & STORAGE [1875] | MOSFETs & IGBTs | |
REP | |
|
| TRANSIC [2006] {established by Volvo} {acquired by Fairchild in 2011} |
SiC BJ Transistors | |
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| TRANSPHORM [2007] {acquired by Renesas in 2024} |
GaN Transistors | |
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| TRANSYS ELECTRONICS [1992] | Diodes, SCRs, TVSs, Transistors | |
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 |
TRINNO TECHNOLOGY [2008] | IGBTs & MOSFETs | |
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 |
TT ELECTRONICS [1906] | RF VDMOS | |
|
||
| u |
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 |
UNISONIC TECHNOLOGIES [1990] | Bipolar Transistors, SCRs, Triacs | |
|
||
 |
UNITEDSIC [1999] {part of Dolce Technologies from 2009} {acquired by Qorvo in 2021} {acquired by onsemi in 2024} |
SiC FETs, JFETS & Schottky Diodes | |
|
||
 |
USHA [1962] {left semi-business in 2000} |
Bipolar Transistors, Diodes, Thyristors | |
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| v |
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 |
VBSEMI [2000] | MOSFETs | |
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VINCOTECH [1996] {started as Siemens Power Modules} {acquired by Tyco in 2000} {acquired by Gores Group in 2007} {part of Mitsubishi from 2010} |
Power Modules | |
|
||
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VISHAY INTERTECHNOLOGY [1962] |
MOS Transistors, Diodes | |
REP | |
|
 |
VISIC TECHNOLOGIES [2010] | GaN Power FETs |  |
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VOLTAGE MULTIPLIERS [1980] | Diodes, HV Diodes, Rectifiers, TVSs | |
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| w |
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WAVICE [2011] | GaN-on-SiC Transistors | |
|
||
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WEEN SEMICONDUCTORS [2015] {spun-off from NXP} {China owned from 2019} |
Thyristors, Transistors, Diodes, Modules, +SiC | |
|
||
 |
WEIDA SEMICONDUCTOR [2018] | Transistors, MOSFETs, Thyristors, SSRs | |
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 |
WEITRON TECHNOLOGY [1999] | Diodes & Transistors | |
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| WESTCODE SEMICONDUCTORS [1998] {acquired by Ixys in 2002} |
Power Diodes & Thyristors | |
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 |
WILL SEMICONDUCTOR [2007] | MOSFETs, Schottky Diodes, TVS | |
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 |
WING SHING INTERNATIONAL [1998] | Diodes & Transistors | |
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 |
WINSEMI SEMICONDUCTOR [2000] | MOSFETs | |
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 |
WISE INTEGRATION [2020] | GaN Transistors | |
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 |
WOLFSPEED [2015] {Power and RF division of Cree before 2015} {RF business sold to MACOM in 2023} |
GaN RF Power Discretes, SiC Discretes | |
|
||
 |
WON-TOP ELECTRONICS [1992] | Diodes | |
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| x |
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| X-REL SEMICONDUCTOR [1992] {division of EASii IC} |
HiTemp Discretes | |
|
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 |
XINER SEMICONDUCTOR [2013] | IGBT, IPMs, IGBT Modules, Drivers | |
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 |
XSEMI [2021] {JV of Yageo and Foxconn from 2021} |
MOSFETs | |
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 |
XUYANG ELECTRONICS [2001] | Diodes | |
|
||
| y |
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 |
YANGJIE ELECTRONIC TECHNOLOGY [2000] | Diodes, Transistors, TVSs | |
|
||
| z |
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 |
ZETEX SEMICONDUCTORS [1989] {buy-out from Plessey in 1989} {acquired by Diodes in 2008} |
Bipolar Transistors | |
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 |
ZOWIE TECHNOLOGY [1994] | Diodes, Zeners | |
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