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This section provides an overview for field effect transistors (fet) as well as their applications and principles. Also, please take a look at the list of 25 field effect transistors (fet) manufacturers and their company rankings. Here are the top-ranked field effect transistors (fet) companies as of December, 2024: 1.Electronic Devices, Inc., 2.Qorvo, 3.NetSource Technology, Inc..
Table of Contents
Field effect transistors (FETs) are semiconductor devices in which the current flowing between source and drain is varied by applying a voltage to the gate electrode and controlling the flow of electrons or holes through the electric field of the channel.
Field effect transistors (FET), like bipolar transistors, have three electrodes: the terminal corresponding to the base is the gate, the terminal corresponding to the collector is the drain, and the terminal corresponding to the emitter is the source, The terminal corresponding to the collector is the drain, and the terminal corresponding to the emitter is the source.
Field effect transistors (FETs) are used in a wide variety of circuit fields. In digital circuits, FETs are used as elements in logic circuits. In analog circuits, they are often used in analog switches and electronic volume circuits, in addition to general amplifiers.
In particular, MOSFETs are suitable for integrated circuits because, in addition to their extremely low gate current, their structure is planar, and their manufacturing process is simpler and consumes less power than that of bipolar transistors. Large-scale digital integrated circuits, such as microcontrollers, are often composed of MOSFETs.
Field effect transistors (FETs) are also used as current switching elements in power electronics such as power supplies because of their low on-resistance and fast ON/OFF switching speed.
The operating principles of JFETs and MOSFETs are different. In the following, the N-channel type is used as an example, but the P-channel type can be handled in the same way by reversing the polarity of the voltage applied to each electrode.
In the N-channel type, where the drain and source electrodes of the N-type semiconductor are connected to the gate electrode of the P-type semiconductor, applying a reverse voltage VGS (the gate electrode side is negative) to the PN junction between the gate and source electrodes causes a depletion layer to expand within the N-type region. Since there are no carriers in the depletion layer, the width of the current flow path (channel) in the N-type region narrows and the current ID flowing from drain to source decreases.
Based on this principle, ID can be controlled by changing the magnitude of VGS. Note that in this usage, the gate current hardly flows because of the inverse method voltage between the gate and the source. In other words, the input impedance is large.
MOS stands for metal-oxide-semiconductor. It has a three-layer structure consisting of a base semiconductor, an oxide layer as an insulating layer, and a metal electrode on top of the oxide layer. As mentioned in the previous section, there are two types of MOSFETs: enhanced type and depletion type.
In an N-channel enhancement type MOSFET with two N-type semiconductor regions in a P-type semiconductor, each of which is a drain and a source, no current flows because the drain and source are N-P-N before voltage is applied to the gate electrode. However, when a positive voltage is applied to the gate, negative charges collect under the gate through an insulating layer (oxide film) to form a thin layer of N-type semiconductor, and the drain-source interface becomes N-N-N, or continuous N-type semiconductor, allowing current flow.
The N-shaped semiconductor layer formed under the gate is called the "channel." The thickness of the channel varies with the voltage VGS applied between the gate and the source, and the current ID flowing from the source to the drain varies with the thickness of the channel. In other words, ID can be controlled by the value of VGS. In addition, since the gate electrode is only in contact with the insulation layer, only a minute leakage current flows. This means that the input impedance is extremely large.
In the enhanced type, no current flows through the drain when VGS = 0 as described above, but in the depletion type, a thin channel is formed between the drain and source in advance to allow current to flow through the drain when VGS = 0. Therefore, Field Effect Transistors (FETs) are easy to use as amplification circuits because the drain current follows even when the signal level applied to the gate electrode is very small.
Field effect transistors (FETs) are classified according to their structure into junction field effect transistors (JFETs) and insulated gate field effect transistors (MOSFETs), which are indicated by different circuit symbols on the circuit diagram. There are also two types of MOSFETs: the P-channel type, in which two P-type semiconductor regions are embedded in an N-type semiconductor base, and the N-channel type, in which two N-type semiconductor regions are formed in a P-type semiconductor base, depending on the application.
Furthermore, MOSFETs can be classified into the enhancement type, in which no current flows between the source and drain unless a voltage is applied between the gate and source, and the depletion type, in which some current flows even when the gate and source are at the same potential.
*Including some distributors, etc.
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InterFET, established in 1981 and located in Texas, United States, is a designer, manufacturer, and supplier of JFET products for various applications, including component and sub-assembly computer circuitry, medical instrumentation, and test and measurement instrumentation. The company offer a wide range of products, including regulators and limiters, audio amplifiers, commutators, and JFET Master Table for various analog and digital applications, defense systems, aerospace, geophysical exploration instrumentation, and consumer products. The company provides results-driven Analog Front End (AFE) solutions in the industry around the world.
Qorvo, established in 2015, is a semiconductor manufacturer headquartered in Greensboro, North Carolina, USA, that specializes in providing RF (Radio Frequency) solutions. Their range of product offerings includes RF chips, modules, amplifiers, discrete transistors, and integrated circuits, designed to enable wireless communication, enhance defense systems, support automotive applications, facilitate aerospace operations, and enable connectivity in the Internet of Things (IoT) sector. Qorvo is certified with ISO 9001 for quality management and ISO 14001 for environmental management.
Electronic Devices, Inc. (EDI) is an American manufacturer of various semiconductor devices that was established in Yonkers, New York in 1958. The company produces diode networks, selenium rectifiers, surface mount devices, in-line bridges, and high voltage assemblies of multiple diodes or rectifiers. These are crucial in voltage regulation, laser systems, digital circuitry, and automation. EDI products are mainly used by clients in the aerospace, medical, and defense industries, as well as in lighting and security systems throughout the commercial sector.
Littelfuse founded in 1927, is an industrial manufacturing company empowering a sustainable, connected, and safer world, headquartered in Chicago, Illinois, United States. The company's product portfolio includes the solutions for both individual and entire systems, as a global manufacturer of technologies in circuit protection, power control, and sensing. Across more than 20 countries, and with approximately 18,000 global associates, partner with customers to design and deliver advanced solutions. Serving over 100,000 end customers, their products are found in industrial, transportation, and electronics end markets.
Solitron Devices, Inc., based in West Palm Beach, Florida, is a manufacturer of solid-state semiconductor components and related devices, primarily serving the military and aerospace markets, founded in 1959. The company offers a wide range of products, including bipolar and metal oxide semiconductor power transistors, power and control hybrids, thin film resistors, and other related products. They have been manufacturing power semiconductors and integrated power solutions for systems that demand the ultimate in performance. Customers in aerospace, defense, industrial and space rely on their products to develop smaller, lighter weight, higher efficiency systems level solutions.
Vishay Intertechnology, Inc. (Vishay) was incorporated in 1962 and is headquartered in Malvern, Pennsylvania. The company serves the industrial, automotive, telecommunications, consumer products, and medical end markets and sells its products under numerous brand names inlcuding Siliconix, Draloric, Beyschlag, UltraSource, and Applied Thin-Film Products. The company manufactures and sells discrete semiconductors and passive electronic components in globally while operating in six market segments: MOSFETs, diodes, optoelectronic components, resistors, inductors, and capacitors.
Diodes Incorporated is a supplier for the consumer electronics, computing, communications, industrial, and automotive markets. Diodes Incorporated designs, manufactures, and supplies application-specific standard products in the discrete, logic, analog, and mixed-signal semiconductor markets worldwide. It focuses on low pin count semiconductor devices. Diodes specializes in semiconductor products, such as MOSFET, TVS, and performance Schottky rectifiers, transient voltage suppressors and other devices. It also provides analog products, such as power management devices comprising AC-DC and DC-DC converters, signaling devices, CMOS devices, and analog switches. Diodes Incorporated was incorporated in 1959 and is headquartered in Plano, Texas.
Founded in San Clemente, California in 1997, NetSource Technology, Inc. is an independent stocking distributor of electronic components and global procurement services, providing comprehensive supply chain solutions to OEMs and contract manufacturers worldwide. NetSource Technology serves the aerospace, automotive, IoT, medical, mobile device, and telecommunications industries and related companies. NetSource Technology specializes in locating hard-to-find, obsolete, end-of-life and highly allocated components with long lead times, supporting customers throughout the complete supply chain lifecycle.
Hybrid Sources Inc., founded in 1985 and located in Wilmington, Massachusetts, is a manufacturer of thick film and hybrid substrates. The company offers a range of products, including aluminum nitride, screened gold, and solder reflow. These products find various applications in industrial packaging equipment, university and research institutions, and automatic testing equipment. Additionally, the company serves as a key supplier of carrier plates for wire bonding to both commercial and military satellite manufacturers.
NXP was established in 2006 as a spinoff from Phillips and is headquartered in Eindhoven, Netherlands. The company is a co-founder of NFC communication and designs and manufactures semiconductors that serve the automotive, industrial, mobile, and smart home industries. The company’s automotive products include driver assistance transceivers, sensors, and security systems. For industrial markets, the company produces RFID readers, processors, and microcontrollers. For communication infrastructure, the company produces RF mixers, diodes, and low-noise amplifiers for wireless LAN networks. The company also produces peripherals, power management chips, communications chips, and interface devices.
Cissoid, founded in 2000 and headquartered in Mont-Saint-Guibert, Walloon Region, is a manufacturer of high temperature semiconductors. They deliver standard products and custom solutions for power management, power conversion and signal conditioning in extreme temperature and harsh environments. Their solutions range from system-on-chip to complete SiC and GaN based inverter platforms to support an ever-growing range of e-mobility and high-power applications. The company has been supplying products to leaders in the Oil & Gas, aeronautic, Industrial and automotive markets.
Simac Electronics, situated in Neukirchen-Vluyn, Germany, is a pan-European manufacturer and developer specializing in computer electronics and open-source hardware. The company offers a broad spectrum of products, including sensors, development boards, high-end PCs, industrial systems, and educational solutions. With a specialization on development, production, and service, it provides a comprehensive one-stop solution. Its product lineup also encompasses measuring devices, linker kit buzzers, cables, and voltage converters. Additionally, it markets special systems and electronic components under its "Joy-IT" brand.
Diotec Semiconductor AG is a German-based semiconductor manufacturer and supplier of diodes and rectifiers which was founded in 1973 and is headquartered in Heitersheim, Germany. They specialize in producing discrete semiconductors, both standard and customized, readily available for worldwide delivery. Their product portfolio includes diodes, rectifiers, protection devices (TVS/ESD), transistors, and regulators. These products are used in various applications such as in industrial, energy, mobility, lighting, and consumer electronics, contributing to power management, signal conditioning, and circuit protection in different electronic systems and devices.
Renesas Electronics Corporation was established in 2002 and is headquartered in Tokyo, Japan. Renesas is a global research, design, and manufacturer of semiconductors used in industries spanning automotive, consumer electronics, the internet of things, power & energy, and industrial sectors. Renesas manufactures both analog and digital products. Analog products include amplifiers, audio & video devices, data converters, PLC, and switches & multiplexers. Digital products include microcontrollers, memory components, sensors, wireless connectivity products, and others. Renesas also offers design resources such as kits, development tools, partner programs, and design tools.
Toshiba Electronic Devices & Storage Corporation is a division of Toshiba focusing on providing designs for end-product developers as well as semiconductor and drive equipment for automotive, industrial equipment, green energy, and consumer and personal electronic devices. Toshiba’s storage products include cloud-scale and enterprise-level products, and PC hard drives. Semiconductor products include Si Cower devices, MOSFETs, IGBTs, IEGTs, isolators, solid state relays, power management and intelligent power ICs, diodes, bipolar transistors, microcontrollers, automotive devices, ICs for wireless communication equipment, general purpose logic ICs, radio-frequency devices, sensors, and linear image sensors.
Comchip, founded in New Taipei City, Taiwan, in 2000 is a manufacturer of bridge rectifiers, fast efficient rectifiers, and switching diodes. The company's product portfolio includes Zener diodes, Schottky diodes, TVS and ESD surge protectors. Their products find application in applications in lighting, automotive, industrial computers, and TFT-LCD panels and they serve markets such as Electric Vehicles, Renewable Energy and Energy Storage and Electronics and IT Infrastructure. The company has a national distribution network and a customer support center.
ST Micro Electronics is a global semiconductor company serving customers with innovations to have a positive impact on people's lives. Their product line is micro electronic systems, such as switches, controllers, sensors and drivers. The main selling point of ST Micro Electronics is its provision of sustainable products, and introducing their electronics to create a more sustainable world. The company, as well as providing the electronic devices, also provides software and support, ensuring that all fields are covered to provide a fully provide a supported and strong relationship with their customer base. ST Micro Electronics believe that technology plays a key role in helping to solve environmental and social challenges, which is why their semiconductor technologies start with their employees, their customers and partners.
WeEn Semiconductors Co., Ltd., established in 2015, and headquartered in Shanghai, China, is a manufacturer of bipolar power products. The company offers a diverse product portfolio, including Silicon Controlled Rectifiers utilized in power electronic circuits, Power Diodes for converting AC to DC, High Voltage Transistors for high voltage applications, Silicon Carbide Products suitable for high-temperature and high-voltage scenarios, and IGBTs and Modules commonly employed in high-power applications such as motor drives and power grids. The company has achieved certifications like IATF 16949, ISO 9001, and ISO 14001, ensuring quality and environmental standards.
SEMIKRON Dafoss is a power electronics manufacturer formed by the 2022 combination of SEMIKRON and Danfoss Silicon Power. The goods include semiconductor components, power modules, stacks, and discrete systems, including chips, diones, and thyristors used in automotive, industrial, and renewable energy applications. Heatsinks, fans, and thermal interface materials are examples of accessories. The business operates production facilities with certifications like ISO 9001:2015, EMAS, and Letter of Conformity 2022 in Brazil, Germany, Italy, India, and the United States.
Sanken Electric Semiconductors, established in 1946 and headquartered in Saitama-ken, Japan, is a semiconductor manufacturer specializing in power semiconductors. The company serves in the power electronics field offering a wide range of products, including discrete semiconductors, IPMs, power supply ICs, and digitally controlled ICs. The technologies applied by their company enable the development of energy-saving products for global markets. Their semiconductors can be found in various electric equipment and devices, from home appliances to automobiles and industrial equipment. They have about 1,000 employees with 10 distributors and vendors across North America, Europe, and Asia.
Trex Semiconductor is a developer and manufacturer of integrated circuit (IC) products that was established in Tokyo, Japan, in 1995. The company offers voltage regulator ICs for providing stable voltage output from variable input voltage, DC/DC converter ICs for power management applications, and hall ICs for detecting magnetic fields and outputting digital signals. It also offers design and production services for custom orders or unique projects. The company mainly serves client OEMs in the automotive, consumer electronics, and power distribution industries.
Calogic, LLC, established in 2001 and based in Fermont, California, is a manufacturer of analog semiconductor ICs and discretes for power management, computers, telecommunications, intrumentation, and medical applications. The ICs and discretes that Calogic produces are switches, amplifiers, diodes, and mosfets. Buffers, amplifiers, power management, and custom testing are also offered by the company to their customers. Calogic parts are available from different distributors in North America, United Kingdom, Russia, and Germany.
American Distributors LLC (ADI) was founded in 1983 and has corporate offices in Randolph, New Jersey. ADI manufactures and distributes products for medical diagnostics, industrial usage, maritime usage, aerospace, and military. ADI is ISO 9001:2015 certified. ADI’s product line includes capacitors, chip resistors, coils, chocks, connectors, crystals, diodes, fans, filters, fuses, hardware & accessories, heat shrinkable tubing, inductors, integrated circuits, lamps & lighting development, networks equipment, Parylene coating, relays, resistors, semiconductors, IC sockets & terminals, switches, transistors, and wire & cable.
ROHM Semiconductor was incorporated in 1940 and is headquartered in Kyoto, Japan. ROHM manufactures and sells electronic components worldwide. ROHM operates through the segments ICs, discrete semiconductor devices, and modules. ROHM provides ICs comprising memory, amplifiers and linear, power management, clocks and timers, switches and multiplexers, logic, data converters, sensors and MEMS, display drivers, motor/actuator drivers, interfaces, communication and speech synthesis LSI, audio and video, and microcontrollers. ROHM also offers discrete semiconductor products include MOSFETs, bipolar transistors, and diodes; power devices, including power transistors and diodes, SiC power devices, IGBT, and IPM; passive devices, such as resistors, and conductive polymer and tantalum capacitors; and various modules among others.
Hello BOM is an online electronic component storefront designed to bridge customers and suppliers. Customers supply Hello BOM with their bill of materials (BOM) and Hello BOM uses smart analysis via AI data matching to quickly find precise matches that customers need. This is accomplished via Hello BOM’s growing component stock and product information database to grow increasingly accurate and fast, while also simplifying the process of R&D and purchasing for customers. Products include semiconductors, resistors, capacitors, diodes, inductors, connectors, transistors, and sensors.
Ranking as of December 2024
Derivation Method| Rank | Company | Click Share |
|---|---|---|
| 1 | Electronic Devices, Inc. |
14.8%
|
| 2 | Qorvo |
8.7%
|
| 3 | NetSource Technology, Inc. |
7.4%
|
| 4 | Diodes Incorporated |
6.0%
|
| 5 | ICKey Internet Technology Co., LTD |
5.4%
|
| 6 | SIMAC Electronics GmbH |
4.7%
|
| 7 | Hybrid Sources, Inc. |
4.7%
|
| 8 | Solitron Devices |
4.7%
|
| 9 | Toshiba Electronic Devices & Storage |
4.7%
|
| 10 | Littelfuse |
4.0%
|
Derivation Method
The ranking is calculated based on the click share within the field effect transistors (fet) page as of December 2024. Click share is defined as the total number of clicks for all companies during the period divided by the number of clicks for each company.Number of Employees
Newly Established Company
Company with a History
*Including some distributors, etc.
*Including some distributors, etc.
| Country | Number of Companies | Share (%) |
|---|---|---|
|
United States of America
|
9 | 50.0% |
|
Japan
|
5 | 27.8% |
|
Germany
|
2 | 11.1% |
|
Netherlands
|
1 | 5.6% |
|
Belgium
|
1 | 5.6% |
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