- C*Core Technology Co., Ltd. [Suzhou C*Core Technology Co., Ltd. ] RISC-V based CPUs
- C-Cube Microsystems video chips
• acquired by LSI Corporation
- C-MAC MicroTechnology ASICs, power amplifiers, multi chip modules
- C-Media Electronics audio chips
- C-Port network processors
• acquired by Motorola Semiconductor Products now Freescale Semiconductor, Inc.
• Freescale merged with NXP Semiconductors
- C-SKY [Hangzhou C-SKY Microsystems Co., Ltd. ] CPU IP Licenses, IoT chips
• acquired by Alibaba Group
- C3Nano Inc. transparent electrode inks and films
- C&H Technology rectifiers, thyristors
- C2 Microsystems Inc. multimedia processor
- C2V MEMS
- Cadence Design Systems Inc. USB, MIPI, display and storage controller IPs
- Cadeka Microcircuits LLC. analog semiconductors
• acquired by Exar Corporation
• Exar Corporation acquired by MaxLinear Corporation
- Cal ASIC
• now JMAR Semiconductor
- Calibre Inc. (San Jose)
• acquired by Zilog
- Calibre UK Ltd.
• acquired by Coretronic Corporation
- Caliopa optical transceivers
• acquired by Huawei
- California Eastern Laboratories [CEL] RF semiconductors, fiber optic devices, optocouplers, solid state relays, communications
- California Memory Technologies Inc. MRAM memory solutions, memory controllers
- California Micro Devices IPDs, semiconductors
- Calisolar Inc. photovoltaic
• changed name to Silicor Materials photovoltaic
- Calogic LLC wideband C/DMOS analog switches & multiplexers, ASICs
- Calvatec mixed-signal chip designs
• acquired by Maxim
• Maxim Integrated Products Inc. acquired by ADI [Analog Devices Inc.]
- Calxeda Inc. ARM processors
- Cambricon Technologies Co., Ltd. processors
• please check Cambricon Technologies Co., Ltd. Englisch version too!
- Cambridge Analog Technologies [CAT] analog to digital converters
• acquired by Maxim
• Maxim Integrated Products Inc. acquired by ADI [Analog Devices Inc.]
- Cambridge CMOS Sensors Ltd. [CCMOSS] miniature low power gas sensors
• acquired by ams AG [austriamicrosystems AG]
- Cambridge Display Technology Ltd. [CDT] light emitting polymers
• acquired by Sumitomo Chemical Co., Ltd.
- Cambridge GaN Devices [CGD] GaN-on-silicon power semiconductors
- Cambridge Integrated Circuits Ltd. [CambridgeIC] linear & rotary sensors
- Cambridge Mechatronics Ltd. [CML] processors
- Cambridge Positioning Systems Ltd location systems
• acquired by CSR [Cambridge Silicon Radio]
• CSR mobile business unit acquired by Samsung Electronics Co., Ltd.
- Cambridge Semiconductor [CamSemi] single-chip power ICs
- Cambridge Silicon Radio [CSR]
• acquired by Qualcomm Inc.
• CSR mobile business unit acquired by Samsung Electronics Co., Ltd.
- CambridgeIC [Cambridge Integrated Circuits Ltd.] linear & rotary sensors
- CamGaN Limited gallium nitride based light-emitting diodes (LEDs)
• acquired by Plessey Semiconductors Ltd.
- Camgian Microsystems Corp. wireless microsystems
• ultra-low power digital circuit technology transfered to Wave Semiconductor
- Cammsys camera modules
- CamSemi [Cambridge Semiconductor] single-chip power ICs
- Canaan Creative Co. Ltd AI technologies
- Canadian Solar Inc. [CSI] photovoltaics
- Candescent Technologies Corporation ThinCRT, Field Emission Display
- Cando Corporation
• acquired by AU Optronics
- Canesta Inc. 3D image sensors
• acquired by Microsoft Corporation
- Canova Tech Srl. DCDC boost converters, AD converters, oscillators with AGC
- Canrom Photovoltaics Inc. photovoltaics, Monocrystalline Silicon
- CanSemi Technology Inc. [Guangzhou CanSemi Technology Inc.] 300mm wafer fab
- Capella Microsystems ambient light sensors, RGB sensors, IrDA compliant transceivers, optical encoders
• acquired by Vishay Intertechnology Inc.
- Cardea Bio Inc. graphene based biosensors
- Cartesiam SAS AI solutions
- Cascoda Ltd. low power radio chips, wireless communications
- CAST Inc. Intellectual Property (IP) Core provider
- Catalyst Semiconductor memories
• acquired by ON Semiconductor
- Catamaran Communications
• acquired by Infineon Technologies
- Catena Networks DSL communications
• acquired by NXP Semiconductors
- Caustic Graphics Inc. raytracing
• acquired by Imagination Technologies Group
- Cavendish Kinetics MEMS
• acquired by Qorvo Inc.
- Cavium Networks Inc. communication
• acquired by Marvell Technology Group Ltd.
- CCMOSS [Cambridge CMOS Sensors Ltd.] miniature low power gas sensors
• acquired by ams AG [austriamicrosystems AG]
- CDI [Compensated Devices Inc.] diodes
• acquired by Microsemi
• Microsemi Corporation acquired by Microchip Technology Inc.
- CDIL transistos, diodes
- CDT [Cambridge Display Technology Ltd.] light emitting polymers
• acquired by Sumitomo Chemical Co., Ltd.
- CEA-Leti [Leti CEA tech} research institute for microelectronics and nanotechnology
- CEC Huada Electronic Design Co., Ltd. [Huada Electronic Design Co., Ltd. ] smart card chips
- CEEG (Nanjing) PV-Tech Co., Ltd. photovoltaics, Solar cells
- CEIEC Shenzhen diodes
- CEITEC S.A. RFIDs, mixed signals
- CEL [California Eastern Laboratories] RF semiconductors, fiber optic devices, optocouplers, solid state relays, communications
- Celeno Communications wireless home networking
• acquired by Renesas Electronics Corporation
- Celetron USA Inc. power supplies, memory modules, Electronic Manufacturing Services
- Celduc Relais Solid State Relays
- Celeritek Inc. microwave, RF communication
• acquired by Mimix Broadband
now M/A-COM Technology Solutions [MACOM]
- Celeritous Technical Services replacement ICs
- Celestial Semiconductor ARM-based system-on-a-chip processors
• acquired by Cavium Networks Inc.
- Celestica ASICs
- Celis Semiconductor memories
- Cellular3G Inc. communications
- Cemat Silicon S.A. wafers
- Centaur Technology
• acquired by VIA Technologies Inc.
• Centaur Technology sold to Intel Corporation
- Centellax Inc. communications
• acquired by Microsemi Corp.
• Microsemi Corporation acquired by Microchip Technology Inc.
- Centillium Communications Inc. communications
• acquired by
TranSwitch Corp.
• DSL business line acquired by Ikanos Communications
- Central Semiconductor Corp. transistors, diodes
- Central Semiconductor Manufacturing Corporation [CSMC] foundry
- Centrality Communications Inc. System-on-Chip (SoC) processors
• acquired by SiRF Technology Inc.
- CENTROSOLAR Group AG photovoltaics
- Centrovision
• now Thermo Centrovision
- Century Microelectronics memories
- Century Semiconductor Inc. mixed signals
- Cephasonics Inc. mixed-signal semiconductors to the imaging and ultrasound markets
- Ceragon Networks Ltd. RFICs, wireless backhaul networks
- Cerdelinx Technologies Inc. communications
• acquired by Lattice Semiconductor
- Cerebras Inc. AI processors
- Ceres Holographics Ltd. thin-film HOEs, transparent displays
- Cerfe Labs Inc. CeRAMs
- Cermet Inc. semiconductor substrates
- Cermetek modem modules
- Cermetek Microelectronics communications
- Certicom Corp. IP-cores
- CET [Chino-Excel Technology Co., Ltd. ] power MOSFETs
- CEVA Inc. IP & DSP cores
- CGD [Cambridge GaN Devices] GaN-on-silicon power semiconductors
- CGS Thermodynamics temperature sensing devices, sensors
- Chameleon Systems, Inc. communications, processors
- Champion Microelectronic Corporation [CMC] mixed signal, LDO & voltage regulators
• check Champion Microelectronic Corporation too!
- Changelight [Xiamen Changelight Co., Ltd. ] LEDs, epitaxial wafers and chips, gallium arsenide solar cells
- ChangXin Memory Technologies Inc. [CXMT] DRAMs
- ChaoLogix™ Inc. chaogates
- Chaos Prime wireless connectivity
- Chartered Semiconductor Manufacturing foundry
• merged into GlobalFoundries Inc.
- Cheertek Technology Co., Ltd. multimedia
• or check Cheertek Technology Co., Ltd. [Taiwan]
• acquired by Novatek
- Chelsio Communications Inc. ethernet controllers
- Cheng-Yi Electroni Co. Transistors, TVS
- CHENMKO Schottky, Zener, Mosfet, Rectifier & Transistor
- Cherry Semiconductor
• acquired by ON Semiconductor
- Chi Mei Optoelectronics LCDs
- Chicago Miniature Lamp [CML Innovative Technologies] LEDs
- CHiL SemiconductorCorporation MOSFET drivers, PWM controllers
• acquired by International Rectifier Corporation
• acquired by Infineon Technologies AG
- China Hua Jing Electronics Group Co. ICs
- China Integrated Circuit Design (Group) Corp. Ltd. [CIDC]
- China Resources Microelectronics Limited [CR Micro] IC design
- China Semiconductors LEDs
- China Star Optoelectroincs Technology Co., Ltd. [CSOT] LED displays
- China Sunergy Co., Ltd. mono- & multi-crystalline silicon solar wafers and cells
- China Yunsun LED Lighting Co., Ltd. [Yunsun] LED lighting
- Chingis [Chingis Technology Corporation] P-channel Flash memories
• acquired by Integrated Silicon Solutions [ISSI]
- Chino-Excel Technology Co., Ltd. [CET] power MOSFETs
- Chips & Technologies
• acquired by Intel
• for Display Controllers check Asiliant Technologies
- Chip Engines Inc. WAN, communications
• acquired by Alliance Semiconductor Corp.
- Chip Memory Technology [CMT] LogicFlash
- Chip Optech Co., Ltd. [Shenzhen Chip Optech Co., Ltd. ] LED display panels
- Chip Supply unencapsulated semiconductors, die
- CHIPBOND Technology Corporation
- Chipcon communications
• acquired by Texas Instruments Semiconductors
- ChipExpress ASICs
• NEW Name ChipX
- Chipidea IP solutions
• acquired by MIPS Technologies
- ChipInvest
- ChipLogic communications
• acquired by Analog Devices
- ChipMOS Technologies Inc.
- Chipone Technology (Beijing) Co., Ltd. sensors, power management ICs, LED display drivers
- Chipown [Wuxi Chipown Micro-electronics Limited] PMICs, Display Drivers
- ChipSensors Ltd. IC sensors for temperature, humidity and certain gases
• acquired by Silicon Laboratories Inc.
- ChipStart processors, controllers
- Chipus Microelectronics analog IPs
- Chipware Technologies Pvt Ltd VLSI, system design services
- ChipWorks reverse engineering
- ChipWrights Inc. processors
- ChipX ASICs
• acquired by GigOptix Inc.
• GigOptix Inc. acquired by GigPeak Inc.
• GigPeak Inc. acquired by Integrated Device Technology, Inc. [IDT]
• IDT [Integrated Device Technology, Inc.] acquired by Renesas Technology Corp.
- Chirp Microsystems Inc. sensors
• acquired by TDK Corp.
- Chongqing HKC Optoelectronics Technology Co. Ltd [HKC Optoelectronics Technology Co. Ltd] LCD panels
- Chongqing Wuqi Technology Co., Ltd. [Wu Qi Technologies, Inc.] IoT & AI chips
- Chromacity Ltd. laser
- Chronocam SAS image sensors
- Chronos
• now MEMSCAP Inc.
- Chrontel video & clock ICs
- Chrysalis-ITS communications, network security
- CHUNGHWA PICTURE TUBES LTD. [CPT] LCDs
- ChunMicron Technology Inc. touch panels
- Cicada Semiconductor DSPs, communications
• acquired by Vitesse Semiconductor Corp.
• Vitesse Semiconductor Corp. acquired by Microsemi Corp.
• Microsemi Corporation acquired by Microchip Technology Inc.
- CICLON Semiconductor Device Corp. RF Device, RF LDMOS, Power MOSFETs
• acquired by Texas Instruments Semiconductors
- CIDC [China Integrated Circuit Design (Group) Corp. Ltd.]
- Cielo Communications, Inc. optical transceivers, VCSELs
- Circadian Solar photovoltaic
- Circuit Integration Tech mixed-signals, clock synthesizer, DC/DC converters
- Circuits Multi-Projets™ [CMP] ICs and MEMS for prototyping and low volume production
- Cirrus Logic Inc. graphics, audio, modems
• digital video product line acquired by Magnum Semiconductor
- Cisco Systems Inc. communications
- CISSOID S.A. high temperature integrated circuits
- Citizen Electronics LED's
- Citizen Watch Co. [Japan] LEDs, LCDs, Crystals, micro motors
• check Citizen America Corporation
• or Citizen Europe too!
- Clairex Technologies, Inc LEDs, infrared, photodiodes
- Clare solid state relais, optoMOS relais
• acquired by IXYS Corp.
• Reed Relay and Gas Tube business unit acquired by SRC Devices, Inc. now Coto Technology
• acquired by Comus International
- Clare Micronix mixed-signals
• acquired by IXYS Corp.
• IXYS Corp. acquired by Littlefuse Inc.
- ClariPhy Communications Inc. communications
- Clarostat digital potentiometers
• acquired by Honeywell, Inc.
- Clear Logic PLD
- ClearSpeed Technology Limited network processing
- CLOP Technologies Pte Ltd wireless connectivity
- CMC [Champion Microelectronic Corporation] mixed signal, LDO & voltage regulators
• check Champion Microelectronic Corporation too!
- CMD Technology Inc.
• acquired by Silicon Image Inc.
• acquired by Lattice Semiconductor Corp.
- CMK Ltd GaAs wafers and crystals
- CML [Cambridge Mechatronics Ltd.] processors
- CML Microsystems Plc telecom, voice
• check CML [Consumer Microcircuits Limited] too!
- CML Innovative Technologies [Chicago Miniature Lamp] LEDs
- CMP [Circuits Multi-Projets™] ICs and MEMS for prototyping and low volume production
- CMOS Micro Device Inc. communications
- CMOSIS nv image sensors
- CMT [Chip Memory Technology] LogicFlash
- CNE [Crocus Nano Electronics LLC] wafers based on Thermally Assisted Switching ™ (TAS) MRAM technology
- Cobham Ltd. [Cobham Defense Systems division] Cobham Sensor Electronics
- Codasip Group RISC-V processors
- Code Mercenaries controllers
- Cognet Microsystems
• acquired by Intel
- Cognigine Corporation network processors
- CogniMem Technologies Inc. high speed parallel pattern recognition
- CogniPower power conversion
- CogniVue Corporation programmable Image Cognition Processors (ICPs)
• acquired by Freescale Semiconductor
- Cognovo Limited communications
• acquired by u-blox ag
- Coherent laser diodes
- Cologne Chip communications
- Comcore Semiconductor
• acquired by National Semiconductor • now Texas Instruments Semiconductors [TI]
- Comlent Technology Inc. communications
- Comlinear analog semiconductors
• acquired by National Semiconductor
• now Texas Instruments Semiconductors [TI]
- Comlinear analog semiconductors
• please check Cadeka Microcircuits LLC.
- Commergy Technologies
• acquired by Texas Instruments Semiconductors
- Commit Inc. TD-SCDMA terminal chipsets
- Communicant Semiconductor Technologies AG
- Commtag Bluetooth
- Compensated Devices Inc. [CDI] diodes
• acquired by Microsemi
• Microsemi Corporation acquired by Microchip Technology Inc.
- Comport Data analog/digital ASICs
- Composyt Light Labs SA see-through displays
• acquired by Intel Corporation
- Compound Semiconductor Manufacturing Corp [CSMC] GaAs Wafers
- COMPOUND SOLAR TECHNOLOGY CORP. [CompSolar] GaAs HCPVs, photovoltaics
- CompSolar [COMPOUND SOLAR TECHNOLOGY CORP.] GaAs HCPVs, photovoltaics
- ComSilica Inc.
• acquired by Athena Semiconductors Inc.
- Comsys Mobile Communication
• acquired by Intel Corp.
- Comtech AHA Corporation networking
• check AHA [Advanced Hardware Architectures] too!
- Comus International reed, mercury & solid state relays, switches, sensors
• check Comus Technology BV too!
- Concertio Inc.
• acquired by Synopsys Inc.
- Concord Semiconductor Corp. TVS
• acquired by Littelfuse Inc.
- Conexant Systems Inc. RF ICs, datacom ICs, GPS, modem ICs
• for Internet related products check Mindspeed Technologies Inc.
• GPS business line acquired by SiRF Technology Inc.
• for imagine products check ViewAhead Technologies Inc.
• check Skyworks Solutions Inc.
• and Jazz Semiconductor Inc.
• now TowerJazz Semiconductors too!
• set-top box business unit acquired by NXP Semiconductors
• HomePlug AV business unit acquired by CopperGate Communications
• broadband access product line acquired by Ikanos Communications
- Confluence Solar Inc. HiCz single crystal silicon, photovoltaics
- Conformative Systems Inc. XML processors
- Connect One communications
- Connex Technology imaging processors
- Consumer Microcircuits Limited [CML] telecom, voice
- Continental Device India Ltd
- Continental Industries, Inc solid-state relay
- Control Chips special purpose control ICs
- CopperGate Communications home hetworking
- CoreLogic Inc. mobile handset solutions
- CoreOptics optical networking
• acquired by Cisco Systems Inc.
- Coresonic AB 4G and multimode modem solutions
• acquired by MediaTek Incorporation
- Coretek Opto Corporation fiber optic tranceivers
- Coretronic Corporation backlight units (BLU)
- CorkOpt
• now StockerYale (IRL) Ltd LED chips
- Cornami Inc. AI accelerators
- Cooper Bussmann Inc. power fuses, coils, overcurrent & surge protection
- Corona Electronics and Technology Co., Ltd. receivers
• also known as Wuxi Corona Electric & Technology Co., Ltd.
- Corona Optical Systems optical communication
- Cortina Systems Inc. multimedia networks
- Cortologic speech processing
- Cortus S.A. processor cores & IPs
- CORWIL Technology Corporation IC assembly subcontractor
- Cosemi Technologies, Inc. optical interconnection
• acquired by Mobix Labs, Inc.
- Cosmic Circuits analog and mixed-signal silicon IP-cores
- Cosmo Electronics Corporation solid state relays, photo coupler,photo MOS relays
- Cotco LEDs
- Covalent Silicon Corp.
• acquired by SAS [Sino-American Silicon Products Inc.]
- Covion Organic Semiconductors GmbH OLEDs
- CP Clare Corporation
• now Clare solid state relais, optoMOS relais
- cPacket Networks Inc. network monitoring
- CPS [Cambridge Positioning Systems Ltd.] location systems
- CPT [CHUNGHWA PICTURE TUBES LTD.] LCDs
- CPU Tech embedded systems
- CR Micro [China Resources Microelectronics Limited] IC design
- Cradle Technologies, Inc. system-on-chip
- Creative Chips GmbH ASICS, mixed signal IC
• acquired by Dialog Semiconductor
• Dialog Semiconductor Plc acquired by Renesas Electronics Corporation
- Creative Sensor Inc. image sensors
- Creative Technology Ltd. digital entertainment
- Credo Semiconductor Inc. communications
- Cree Inc.
• Power and RF Business rebranded as Wolfspeed
• LED business unit acquired by SMART Global Holdings Inc.
- Cree Microwave LDMOS RF semiconductors
- Crescentec image controllers
- Cresta Technologies Corporation broadband TV reception, TV tuner ICs
- CRI [Cryptography Research Inc.] security technologies
• acquired by Rambus Inc.
- Cricket Semiconductor Pvt. Ltd. analog/power foundry
- Crypto Quantique Ltd. cryptographic ICs
- CRM [China Resources Microelectronics Limited] IC design
- Crocus Nano Electronics LLC [CNE] wafers based on Thermally Assisted Switching ™ (TAS) MRAM technology
- Crocus Technology MRAMs
- Cronos MEMS
• acquired by MEMSCAP Inc.
- Crossbar Inc. resistive RAMs (RRAM)
- Crosslink Semi
- Crucial Technology
• check Micron Technology Inc. too!
- Cruise LLC self driving technologies, LiDAR sensors
- Crydom Corporation Solid State Relays, TVS diodes
• a member of Custom Sensors & Technologies [CST]
- Crypto Quantique scalable IoT security
- Cryptography Research Inc. [CRI] security technologies
• acquired by Rambus Inc.
- Crystal Semiconductor
• acquired by Cirrus Logic
- Crystall analog ICs
- Cristalonics transistors, diodes
- Crystalfontz America Inc. displays
- Crysview Inc. CMOS sensors
- CSEM
- CSI [Canadian Solar Inc.] photovoltaics
- CSMC [Central Semiconductor Manufacturing Company] foundry
- CSMC [Compound Semiconductor Manufacturing Corp] GaAs Wafers
- CSMC Technologies Corporation analog foundry
- CSOT [Shenzhen China Star Optoelectroincs Technology Co., Ltd. ] LED displays
- CSR [Cambridge Silicon Radio]
• acquired by Qualcomm Inc.
• CSR mobile business unit acquired by Samsung Electronics Co., Ltd.
- CSS [Custom Silicon Solutions Inc.] ASICs
- Compound Semiconductor Technologies Global Limited [CST Global] III-V photonic devices
• acquired by Sivers IMA AB
- CST [Custom Sensors & Technologies] sensors, diodes
- CST Global [Compound Semiconductor Technologies Global Limited] III-V photonic devices
• acquired by Sivers IMA AB
- Cswitch Inc. ceased operation during 2009.
- CT-Concept Technologie AG IGBT drivers
- CTI Communication Techniques communications
- Cub Elecparts Inc. automotive switches and sensors
- Cubic Memory Inc. memories
• acquired by Vertical Circuits Inc. [VCI]
- Culture.com Technology Ltd. microprocessors
- Custom MMIC microwave ICs
• acquired by Qorvo Inc.
- Custom Silicon Solutions Inc. [CSS] ASICs
- CXMT [ChangXin Memory Technologies Inc.] DRAMs
- Cyan Holdings Plc [Cyan Technology Ltd.] microcontrollers
- Cyan Technology microcontrollers
- Cybernetic Micro Systems special purpose control ICs
- CyberTouch
- Cyberkinetics Neurotechnology Systems Inc
- Cybernetics InfoTech Inc. voice, audio
- Cycleo SAS wireless communications IPs
• acquired by Semtech Corporation
- Cyclos Semiconductor Inc. resonant clock mesh designs
- Cygnal Integrated Products Inc. flash microcontrollers
• acquired by Silicon Laboratories Inc.
- Cyient Ltd. analogue, radio frequency, and mixed-signal integrated circuit design
- Cymbet Corporation thin film batteries
- Cynergy3 Components Limited sensors, reed relays
- CyOptics optical communications
- Cypress Semiconductor Corp. SRAM, NVRAM, FIFO
• PSRAM product line acquired by Elite Semiconductor Memory Technology Inc.[ESMT]
• CMOS Image Sensor Business Unit acquired by ON Semiconductor
• Touchscreen Business Unit acquired by Parade Technologies Ltd.
• Cypress Semiconductor Corp. acquired by Infineon Technologies AG
- Cyrium Technologies™ Inc. solar cells, photovoltaics
- Cyrix Processors
• for x86 compatible processors check VIA Technology
- Cyrod Technologies Inc. MCUs, microcontrollers
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