Engineering:List of integrated circuit manufacturers

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The following is an incomplete list of notable integrated circuit (i.e. microchip) manufacturers. Some are in business, others are defunct and some are Fabless.

0–9

• 3dfx Interactive (acquired by Nvidia in 2002)

A

• Achronix
• Actions Semiconductor
• Adapteva
• Agere Systems (now part of LSI Logic formerly part of Lucent, which was formerly part of AT&T)
• Agilent Technologies (formerly part of Hewlett-Packard, spun off in 1999)
• Airgo Networks (acquired by Qualcomm in 2006)
• Alcatel
• Alchip
• Altera
• Allegro Microsystems
• Allwinner Technology
• Alphamosaic (acquired by Broadcom in 2004)
• AMD (Advanced Micro Devices; founded by ex-Fairchild employees)
• Analog Devices
• Apple Inc.
• Applied Materials
• Applied Micro Circuits Corporation (AMCC)
• ARM
• AT&T
• Atari
• Atheros (acquired by Qualcomm in 2011)
• ATI Technologies (Array Technologies Incorporated; acquired parts of Tseng Labs in 1997; in 2006, became a wholly owned subsidiary of AMD)
• Atmel (co-founded by ex-Intel employee, now part of Microchip Technology)
• Amkor Technology
• ams AG (formerly known as austriamicrosystems AG and frequently still known as AMS (Austria Mikro Systeme)

B

• Bourns, Inc.
• Brite Semiconductor
• Broadcom Corporation (acquired by Avago Technologies in 2016)
• Broadcom Inc. (formerly Avago Technologies)
• BroadLight
• Burr-Brown Corporation (Acquired by Texas Instruments in 2000)

C

• C-Cube Microsystems
• Calxeda (re-emerged with Silver Lining Systems in 2014)
• Cavium
• CEITEC
• Chips and Technologies (acquired by Intel in 1997)
• CISC Semiconductor
• Cirrus Logic
• Corsair
• Club 3D (Formerly Colour Power)
• Commodore Semiconductor Group (formerly MOS Technologies)
• Conexant (formerly Rockwell Semiconductor, acquired by Synaptics in 2017)
• CSR plc (formerly Cambridge Silicon Radio)
• Cypress Semiconductor (acquired by Infineon Technologies in 2019)

D

• D-Wave Systems
• Dallas Semiconductor (acquired by Maxim Integrated in 2001)
• Dynex Semiconductor

E

• Elmos Semiconductor
• EM Microelectronic-Marin (subsidiary of The Swatch Group)
• Entropic Communications (acquired by MaxLinear in 2015)
• Epistar
• Epson
• ESS Technology
• Everspin Technologies
• Exar Corporation (established as a subsidiary of Rohm Semiconductor, acquired by MaxLinear in 2017)
• EZchip Semiconductor (acquired by Mellanox Technologies in 2016)

F

• Fagor (owned by Mondragon Corporation)
• Fairchild Semiconductor
• Ferranti
• Freescale Semiconductor (formerly part of Motorola, merged in 2015 with NXP)
• FTDI
• Fujifilm
• Fujitsu

G

• G.Skill
• General Instrument (semiconductor division acquired by Vishay Intertechnology in 2001)
• Genesis Microchip
• GlobalFoundries
• GM Components Holdings
• GMT Microelectronics (formerly Commodore Semiconductor Group)
• GreenPeak Technologies (acquired by Qorvo in 2016)

H

• Harris Semiconductor (acquired by Intersil)
• HannStar Display Corporation
• HiSilicon
• Hitachi, Ltd.
• Holtek

I

• IBM (International Business Machines)
• IM Flash Technologies (founded by Intel Corporation and Micron Technology, Inc.)
• Imagination Technologies (acquired by Canyon Bridge in 2017)
• Infineon Technologies (formerly part of Siemens)
• InfoTM
• Ingenic Semiconductor
• Inmos
• Inprocomm (acquired by MediaTek in 2005)
• International Rectifier (now part of Infineon Technologies since 2015)
• Integrated Device Technology
• Intel (founded by ex-Fairchild employees)
• Intersil (formerly Harris Semiconductor, bought by Renesas in 2017)
• Intrinsity (acquired by Apple Inc. in 2010)
• InvenSense (acquired by TDK in 2016)
• Industrial Technology Research Institute
• ITT Semiconductor (acquired by Micronas in 1997)
• IXYS Corporation

J

• Jazz Semiconductor (acquired by Tower Semiconductor in 2008)
• Jennic Limited (acquired by NXP Semiconductors in 2010)

K

• Kawasaki
• Kyocera
• Kingston Technology

L

• Lattice Semiconductor
• Leadcore Technology
• Linear Technology (now under Analog Devices since 2016)
• Littelfuse
• Lantiq (acquired by Intel in 2015)
• LSI Logic (founded by ex-Fairchild employees)

M

• M-Labs (formerly known as the Milkymist project)
• M-Systems (acquired by SanDisk in 2006)
• Macronix
• Magnum Semiconductor (acquired by GigOptix in 2016)
• MaxLinear
• Maxim Integrated Products
• Marvell Technology Group
• MediaTek
• Mellanox Technologies
• Mentor Graphics (subsidiary of Siemens)
• Microchip Technology
• Micron Technology
• Micronas
• Microsemi (acquired by Microchip Technology in 2018)
• MicroSystems International
• Mindspeed Technologies (spun off from Conexant)
• MIPS Technologies (acquired by Imagination Technologies in 2013, Imagination Technologies later sold the company to Tallwood Venture Capital in 2017)
• Mitsubishi Electric
• MOS Technology (founded by Allen-Bradley)
• Mosel Vitelic Corporation (defunct in 2009)
• Mosel Vitelic Inc
• Mostek (founded by ex-Texas Instruments employees)
• Motorola (semiconductor division spun off as Freescale Semiconductor)

N

• National Semiconductor (aka "NatSemi"; founded by ex-Fairchild employees, bought in 2011 by Texas Instruments)
• NEC (semiconductor division merged with Renesas Electronics)
• NetLogic Microsystems (acquired by Broadcom Corporation in 2012)
• Nexperia (Spin-off from NXP, founded in 2017)
• Nichia
• Nintendo
• Nordic Semiconductor (formerly known as Nordic VLSI)
• Novellus Systems
• Nvidia (acquired IP of competitor 3dfx in 2000; 3dfx was co-founded by ex-SGI employee)
• NXP Semiconductors (formerly part of Philips)
• Number Nine Visual Technology (acquired by S3 Graphics in 2000)
• Nuvoton (Winbond spun off)

O

• OSRAM
• Oak Technology (acquired by Zoran Corporation in 2003)
• ON Semiconductor (formerly part of Motorola)
• Open-Silicon

P

• Phison
• Parallax Inc.
• Philips Semiconductors (spun off as NXP Semiconductors)
• Plessey
• PLX Technology (acquired by Avago Technologies, now Broadcom Inc.)
• PMC-Sierra (from the former Pacific Microelectronics Centre and Sierra Semiconductor, the latter co-founded by ex-NatSemi employee)
• Panasonic (formerly known as Matsushita Electric Industrial Co., Ltd.)
• PortalPlayer (acquired by Nvidia in 2007)
• Powerchip Semiconductor
• Precision Monolithics (Acquired by Analog Devices in 1990)

Q

• Qualcomm
• Qimonda (split off from Infineon Technologies AG which was formerly part of Siemens)
• Qorvo

R

• Rabbit Semiconductor (acquired by Digi International in 2006)
• Ralink (acquired by MediaTek in 2011)
• Rambus
• RCA
• Realtek
• Renesas Technology (joint venture of Hitachi and Mitsubishi Electric)
• Reticon
• RF Micro Devices (merged with TriQuint Semiconductor to form Qorvo in 2015)
• Ricoh
• Rise Technology (acquired by Silicon Integrated Systems in 1999)
• Robert Bosch
• Rockchip
• Rockwell Semiconductor (spun off as Conexant)
• Rohm
• Roland Corporation
• RMI Corporation (Merged into NetLogic Microsystems, then Broadcom)

S

• Samsung Electronics (Semiconductor division)
• Sanyo (Semiconductor division sold off to ON Semiconductor in 2010)
• Sanken Electric
• SanDisk (acquired by Western Digital in 2016)
• Seagate Technology
• Sensonor (acquired by Infineon Technologies in 2012)
• Sharp Corporation (Sharp Semiconductor division)
• SiFive
• Signetics (acquired by Philips (now NXP) in 1975)
• Sigma Designs
• SigmaTel (acquired by Freescale which merged with NXP in 2015)
• Silicon Motion
• Silicon Systems (now part of Western Digital)
• Silicon Labs
• Silicon Image (acquired by Lattice Semiconductor in 2015)
• Silicon Integrated Systems
• SK Hynix
• Skyworks Solutions (spun-off from Conexant)
• Sony (Semiconductor division)
• SMIC
• Spansion
• Spreadtrum
• STMicroelectronics (formerly SGS Thomson)
• ST-Ericsson (defunct in 2013)
• Sun Microsystems (acquired by Oracle Corporation in 2010)
• Symbios Logic (sold to Hyundai Electronics in 1995)
• Synertek

T

• Tamarack Microelectronics (merged with IC Plus in 2002)
• TDK
• Telechips
• Tektronix (semiconductor division sold to Maxim Integrated in 1994)
• Teridian Semiconductor
• Texas Instruments
• Tilera (acquired by EZchip Semiconductor, EZchip was later acquired by Mellanox Technologies)
• Toshiba
• Tower Semiconductor
• Transmeta (acquired by Novafora in 2009)
• TriQuint Semiconductor (merged with RF Micro Devices to form Qorvo in 2015)
• Truly International Holdings
• Trumpf
• TSMC (Taiwan Semiconductor Manufacturing Company. semiconductor foundry)

U

• UMC
• u-blox
• Ubicom (formerly Scenix Semiconductor, acquired by Qualcomm Atheros in 2012)

V

• Vanguard International Semiconductor Corporation
• VIA Technologies (founded by ex-Intel employee, part of Formosa Plastics Group)
• Vimicro
• Virata Corporation (merged with Conexant in 2004)
• Vishay Intertechnology
• Vivante Corporation
• Volterra Semiconductor

W

• Wacom
• Western Digital
• Wilocity (acquired by Qualcomm Atheros in 2014)
• Winbond
• Wolfson Microelectronics
• WonderMedia

X

• X-Fab
• Xelerated (acquired by Marvell Technology Group in 2012)
• Xilinx (founded by ex-ZiLOG employee)
• XMOS

Y

• Yamaha Corporation

Z

• ZiLOG (founded by ex-Intel employees, part of Exxon 1980–89; now owned by TPG)
• Zoran Corporation (merged with CSR PLC which was later merged to Qualcomm)