2023 a shares leading semiconductor stocks list
Semiconductor refers to the conductivity at room temperature between the conductor and insulator materials, common semiconductor materials are silicon, germanium, gallium arsenide, etc., silicon is the semiconductor material applications in the most influential one. So here's a look at a list of leading semiconductor stocks in the a-share market! I hope it will be helpful to everyone!
Semiconductor Segment Leaders
1.EDA software (electronic design automation)
With the improvement of the chip process requirements, the more complex the difficulty of manufacturing, a chip design needs to go through a lot of precise and accurate calculations. Manual design is time-consuming, labor-intensive and inaccurate features gradually appeared, EDA electronic design automation came into being, which can assist the designer to carry out the physical design and functional design, a large number of savings in manpower and time costs, and improve the efficiency of the design.
Domestic leader: UW Jutian (unlisted)
UW Jutian was founded in 2009, its predecessor is the EDA department of the Huada Group, the EDA field of the "national team". The company released a new generation of analog circuit design full-flow EDA tool system in 20 years. Huada Jutian is currently the largest and most complete product line of EDA tool providers, domestic EDA market share to maintain a share of more than 50%. At present, there is no domestic listed companies EDA, which China's U.S. JiuTian, probability of Lun electronic GEM and Cochrane board listing counseling is completed, core vision from the Cochrane board has been inquired about the status of the halberd to turn to the main board.
2. Memory chips
Storage chips are an integral part of the semiconductor components, the market size is huge, accounting for about one-third of the overall semiconductor market. Memory chips can be categorized into NANDFlash (40%), NORFlash (1%), DRAM (58%), and others (1%).
DRAM is dynamic randomized memory with volatility, meaning it needs to be refreshed and charged every once in a while or the internal data will disappear, and is generally used in computer memory, cell phones, and mobile devices.NANDFlash, also known as flash memory, is a type of non-volatile memory, and is widely used in markets such as eMMC/EMCP, USB flash drives, and solid state drives. NORFlash, on the other hand, has a lower storage density, slower writing speed and slightly more complex operation compared to NAND, and is more commonly used in automotive electronics.
Domestic leading: Zhaoyi Innovation (603986), Beijing Junzheng (300233)
ZhaoYi Innovation 20 years revenue of 4.497 billion yuan, of which 3.283 billion originated from the memory chip, accounting for 73%. In the NORFlash, provides to cover the full range of market demand; in the NANDFlash, the company's mainstream node in 19nm-38nm, of which 38nm technology has matured and mass production; in the DRAM project is also in the large number of R & D in the first half of this year, there are products launched.
Beijing Junzheng 20 years revenue of 2.156 billion yuan, of which 1.525 billion originated from memory chips, accounting for 70.3%. The company's products cover SRAM, DRAM, Flash, etc., of which the most important is DRAM products. The company merged with Beijing Silicon Power in 20 years, and its DRAM product revenue ranks seventh in the world.
3.CPU-Central Processing Unit
CPU, or Central Processing Unit, is the computing core and control core of a computer, and its main functions are to process instructions, execute operations, perform actions with the eyes, control the time, and process data, which is equivalent to the brain that can't think.The most important application areas of CPU are mainly electronic computers.
Domestic leader: Longxin Zhongke (unlisted)
In the field of CPU, basically are monopolized by foreign Intel and AMD, the domestic can independently produce CPU is Longxin CPU, which is the latest is the Longxin 3A5000 processor, from the top level of the architecture, to the instruction function and the ABI standard, etc., all the design independently, do not need foreign authorization, it can be said that it is 100% pure self-developed home-made. 100% pure self-developed domestic CPU.
December 8, 20 Longchip signed a coaching agreement for listing on the Science and Technology Innovation Board (STIB).
4. GPU-Graphics Processor
GPU generally refers to the graphics processor, display chip, is a microprocessor that performs image computing, with the CPU to share the computing work. It is the core of the graphics card, and the performance of the graphics card depends entirely on the GPU chip. Of course, the GPU chip in addition to the computer applications, in other electronic devices, image processing applications.
Domestic leading: Jingjia Micro (300474)
GPU is monopolized by three foreign giants, respectively, Intel (63%), Nvidia (18%), AMD (19%), other companies are minimal, or even can be ignored.
JingJia Micro is a major player in domestic GPUs, and the only company that has developed and commercialized them on a large scale. At present, Jingjia Micro has completed the mass production of three GPUs (JM5400, JM7200, JM7201), covering the two major markets of military and civilian use, breaking the long-term monopoly of foreign products.
5.MCU-Microcontroller
MCU, also known as monolithic microcomputer or microcontroller, is the CPU frequency and specifications appropriately scaled down, that is, a simplified version of the CPU. the main areas of application are industrial control, intelligent home appliances, medical and health care, robotics control and so on. (of which CPU, GPU, MCU accounted for 14% of all integrated circuits)
Domestic leader: Zhaoyi innovation (603986)
ZhaoYi innovation in addition to the memory chip is the domestic leader in MCU is also the top of the country. 20 years Zhaoyi innovation in the MCU revenue of 75500000000 yuan, compared with the year 19 years of growth of 70.14%, the gross profit margin reached 47.61%. And the same industry Zhongying Electronics in the MCU revenue of 950 million yuan, an increase of 21.66% year-on-year growth in 19 years, gross profit margin of 41.62%. Although in revenue Zhaoyi innovation is lower than Zhongying Electronics, but in terms of growth and gross profit margin, Zhaoyi innovation is deservedly the leader.
6.FPGA - semi-custom circuit chip
FPGA device belongs to the special integrated circuits in a semi-custom circuits, is a programmable logic array, can effectively solve the original device gate circuit number of fewer problems. In layman's terms, FPGA can be programmed to make any digital chip. the main application areas of FPGA are mainly communications, consumer electronics, automotive and data centers
Domestic leading: ZiGuang Guomicro (002049), Fudan Microelectronics (688385)
ZiGuang Guomicro holds 36.5% of the shares of the ZiGuang Tongchuang, ZiGuang Tongchuang main FPGA chip, 20 years FPGA revenue reached 316 million dollars.
Fudan Microelectronics annual revenue of 502 million yuan, of which the FPGA business revenue amounted to 452 million yuan, the company has launched a 28nm process process billion gate FPGA products.
7.DSP-Digital Signal Processor
DSP, also known as Digital Signal Processing, is a theory and technology that represents and processes signals digitally for the purpose of measuring or filtering continuous analog signals. It is characterized by being small and compact, very fast and low consumption when it comes to operations related to digital signals. Mainly used in communications, computers, consumer electronics, military and other fields.
Domestic leading: Guo Rui Technology (600562), Siltronic (600990)
China currently has 2 main self-developed high-performance digital signal chip, respectively: "Huarui 2" and "Soul Core 2A ". Its China Rui 2 by CEC 14 led the development, Guo Rui science and technology for its listed companies; Soul Core 2 A by CEC 38 completely independent design, Siltronic for its listed companies.
8. Touch and fingerprint recognition chips
Recognition chips are mainly divided into touch chips and recognition chips, touch chips are used in smart phones, tablet PCs, navigation instruments, home appliances and other intelligent terminals, touch screen and key control; fingerprint recognition chips are used in cell phones, tablet PCs and other 3C products screen unlocking program.
Domestic leader: Huitian Technology (603160)
Huitian Technology in the screen unlocking program, can be called the global leader, almost all the Android camp of cell phones use Huitian Technology's fingerprint identification chip, including Samsung, Huawei, Xiaomi, OPPO, Vivo, etc. (Apple uses face recognition, fingerprint identification technology using their own company) AuthenTec). After Huitian Technology launched the under-screen fingerprint unlocking technology, further consolidating the competitive pattern of the global monopoly.
9. RF front-end chip
RF front-end chip is one of the core chips of the cell phone, RF front-end device is a cell phone RF transceiver and antenna between the functional area, directly connected to the antenna, is responsible for the wireless receiving link, complete the antenna switching and tuning, low-noise amplification, RF power amplification, filtering, and the processed signals are passed to the RF SoC for the next step of frequency conversion and digital signal processing.
Domestic leader: Josun Micro (300782)
Josun Micro 20 years of revenue amounted to 2.792 billion yuan, RF module revenue 25.54, accounting for 91.5%, for Samsung, Huawei, millet, vivo and other mobile intelligent terminal manufacturers to provide products. Unlike other integrated circuit chips, RF front-end chip is almost completely monopolized by the United States, it is difficult to find other sources of goods outside the United States, so the RF front-end chip is also currently one of the most neck-breaking technology, Huawei P50 due to Zhuo Sheng Micro to provide RF front-end chip does not support the 5G and thus is a non-5G cell phone, but also indirectly surface the current RF front-end chip technology has a lot of room for growth.
10. Analog chip
Integrated circuits are divided into two categories: digital chips and analog chips, of which 85% are digital chips and 15% are analog chips. Integrated circuits composed of analog chips are used to process continuously changing information parameters (such as sound, light, temperature, etc.), which are then converted into digital signals that are processed and stored. RF chips, power management chips and digital-to-analog signal converters are analog chips.
Domestic leader: Shengbang shares (300661)
Analog chip industry leader, the main business for the high-performance, high-quality analog chip research and development and sales, its analog chip is mainly used in the ground hole power supply, set-top boxes and other consumer electronics, as well as intelligent manufacturing, security equipment, and other industrial areas.
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11.LED
LED lamps core component is the LED light-emitting chip, its main function is to convert electrical energy into light energy, LED and so on is to replace incandescent lamps, tungsten filament lamps and fluorescent lamps potential light source.
Domestic leader: three Ann photoelectric (600703)
Leader in the field of photoelectricity, the largest full-color ultra-brightness LED chip manufacturers, the global LED chip in the market share reached 28%. In the LED chip overcapacity, market competition is fierce, three Ann photoelectric not only maintains the LED leading enterprise position, but also lateral development miniLED and compound semiconductor and other high-end market.
12. miniLED
miniLED is a smaller LED light as a backlight, mainly used in the backlight of LCD monitors. Its structure and LED basically no big difference, but it is a smaller light source and more flexible brightness control so that it can be in the display to bring a better display effect, a better sense of the picture.
Domestic leading: BOE A (000725), TCL Technology (000100)
BOE has the world's leading MiniLED display technology, to achieve ultra-thin, ultra-brightness, ultra-high partitioning of the integrated solution, the main products for the 75-inch COGminiLED backlight.
TCL technology in TCL Huaxing in August 19 the world's first Mini-LEDonTFT-based MLED Starry Night products, is the world's first a-Si drive Mini-LED array products, is now ready for mass production, the specific production time to be combined with the plans of the terminal manufacturers.
13.IGBT
IGBT-insulated gate bipolar transistor, can be understood as a device to control the current of the circuit, is a switch that is not on, can be seen as a conductor when on, when off as an open circuit, characterized by high-speed, high-current, high-voltage. Mainly used in new energy vehicles, rail transportation, aerospace and other fields.
Domestic leading: Starr semi-conductor (603290)
The company's main business is to IGBT-based semiconductor chip and module design, R & D, production and sales. 20 annual revenue of 963 million yuan, of which 912 million yuan of IGBT module revenue accounted for 94.65%. Starr Semi-Conductor is also the only Chinese manufacturer to enter the top ten of the global IGBT module business, ranking eighth.
14.MOSFET
MOSFET, also known as MOS tube, the role and IGBT is similar to IGBT, IGBT is MOSFET + BIpolar. MOSFET is characterized by high-speed, high-current, low-voltage, and is mainly used in rail transit, inverters, new energy vehicles and other fields.
Domestic leader: China Resources Micro (688396)
CRC Micro ranks third in China's MOSFET market, second only to Infineon and ON Semiconductor, is one of the most complete and wide range of domestic manufacturers to do the MOSFET products. It is one of the few companies in China that can provide a full range of MOSFETs for low, medium and high voltage in the range of -100V~1500V.
15. Power diode
Power diode is the most basic component unit of the power electronic circuit, has a unidirectional conductivity, can be used in the circuit rectifier, clamping, current renewal, the main role is to prevent the current backfeeding caused by the period of damage. Power diodes can be divided into Schottky diodes, gallium arsenide diodes, silicon carbide diodes, fast recovery diodes.
Domestic leader: Yang Jie technology (300373)
Yang Jie technology in the power diode market ranked first in the country, market share of 13.5%, ranked fourth in the global market, the overall market share of 6.3%, can be counted on the power diode domestic alternative to the pioneer.
16. Thyristor
Thyristor full name crystal thyristor, also known as silicon controlled rectifier, and power diodes, can have a unidirectional conductivity, but the use of a single, can only be used for circuit rectification. Thyristor can work in high voltage, high current conditions.
Domestic leading: Jet Microelectronics (300623)
Jet Microelectronics is the earliest R & D, the most complete range of thyristor manufacturers in China, is the first major supplier, with high brand awareness and market share. 19 thyristor revenue reached 330 million yuan, the Asia-Pacific market share of 16.78%, the global market share of 6.06%.
17. crystal oscillator
Crystal oscillator, also known as crystal resonator, is a kind of crystal that can convert electrical energy and mechanical energy to each other, if you give it electricity, it will explain the mechanical oscillation; if you give to give it a mechanical force, it will produce electricity, this effect is called electromechanical effect. The main application areas are mobile devices, consumer electronics, communication networks, medical electronics.
Domestic leading: crystal technology (603738)
The main business of crystal technology is crystal resonator and crystal oscillator, the company's annual revenue of 631 million yuan in 20 years, of which the crystal components amounted to 507 million, accounting for 80.38%. The company **** has 17 quartz crystal oscillators, through the MTK, Huawei Haisi, UV Spreading Rui more than ten domestic and foreign well-known application programmers certification.
18.MLCC - Chip Multilayer Ceramic Capacitors
In circuit science, given a voltage, the ability of a capacitor to store charge becomes capacitance. The role of capacitors is mainly bypass, decoupling, filtering, energy storage. And one of the hottest is the MLCC of bypass capacitors, whose role is to provide heat storage devices for local devices to even out the output of the regulator and reduce load demand.
Domestic leading: FengHuaGaoKe (000636)
FengHuaGaoKe MLCC monthly output of about 13 billion, next year will be invested in a huge expansion of production, a single month can pull up to 20 billion. 20 years of the announcement of the manufacture of high-end MLCC XiangHe industrial park base project, the cycle of 28 months, the new monthly output of 45 billion. That is to say to 22 years in the middle of the year, FengHuaGaoKe monthly production capacity of 65 billion, and the world's fifth Taiwan component factory national giant equal.
19.MEMS-Sensors
MEMS, also known as micro-electro-mechanical systems, is a high-tech device that measures a few millimeters or even less. It is used to observe the effects of analog physical parameters and generate meaningful information to send to a computer. For example, physical quantities such as temperature or humidity can be sensed and converted into electrical signals. The advantage is that it reduces the size of electro-mechanical systems to the millimeter or micron level.
Domestic leader: Minxin (688286)
20 years Minxin annual revenue of 330 million yuan, of which MEMS sensor revenue of 330 million, accounting for 99.87%, including acoustic sensors, pressure sensors, inertial sensors. Minxin shares from '04 began to take the road of the MEMS industry, the current MEMS microphone shipments ranked fourth in the world, gross profit margin (38% ~ 39%) than the global industry giants.
20. Foundry Manufacturing
After the IC (chip) design is completed, circuits will be made on the silicon substrate according to the design layout and photomask (also known as photomask plate). This includes both silicon manufacturing and wafer processing. Currently the top five in the foundry manufacturing global market are TSMC, Samsung, Ge-Xin, UMC, and SMIC. Among them, TSMC ranks first with a 53.9% market share, while SMIC ranks fifth with a 4.5% market share
Domestic leader: SMIC (688981)
Semiconductor Manufacturing International Corporation (SMIC) is the most technologically advanced, well-supported, and largest IC manufacturing company in the mainland. Currently, with its advanced technology, TSMC has completed the mass production of 7nm, and started to manufacture 5nm and 3nm wafers. 5nm and 3nm R&D and production, while SMIC is currently only realizing 14nm-level mass production, with an obvious gap with the world's first.
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21. Packaging and testing
The next step after the completion of wafer fabrication is to carry out the thinning and cutting, wire bonding, encapsulation, testing, and other steps, the semiconductor component structure and electrical function of the confirmation, to ensure that the components meet the needs of the system, the formation of the final chip product.
Domestic leader: long power technology (600584)
Long power technology 20 years revenue of 26.464 billion yuan, of which 26.347 billion yuan of chip sealing and testing, accounting for 99.56%, can be said to be a real sealing and testing leader. (The world's first Sun Micron Corporation 20 revenue of nearly 110 billion yuan). At present, Changdian Technology is ranked first in China and third in the world. (Tong Fu Microelectronics ranked sixth globally, Huatian Technology ranked seventh globally.)
22. Silicon wafers
Silicon wafers are the most important material for making integrated circuits. Silicon material is the most widely used basic material because of its abundant reserves, low price, and good performance, and almost more than 90% of raw materials for semiconductor devices have to use silicon. We make a variety of semiconductor devices by photolithography, ion implantation and other methods on silicon wafers.
Domestic leading: Shanghai silicon industry (688126), Leon Micro (605358)
Shanghai silicon industry main business for the 200mm and the following semiconductor wafer production and processing, 20 years in September, 300mm wafer technology research and development has been through the acceptance of the 20 year. 20 years of wafer revenue of 1.227 billion, accounting for 67.74% of the total revenue, is the current domestic silicon revenue The company's revenue is 1.227 billion, accounting for 67.74% of the total revenue.
Lion Micro's main business is 6-12-inch semiconductor silicon polished wafers and silicon epitaxial wafers, 20 years of silicon wafer revenue of 973 million, accounting for 64.80% of total revenue, faster growth.
23.photoresist
Photoresist is mainly used in chip wafer manufacturing, a chip manufacturing needs to go through dozens of photolithography, each time you need to be in the photomask version of the circuit design coated with photoresist, and then by the ultraviolet irradiation of the photomask version of the circuit graphics on the transfer of the wafer, and then the use of adhesive removal agent will be removed from the photoresist, such a process needs to be repeated until completion of the Integrated circuit wafer manufacturing. Photoresist is mainly used in PCB, LCD and semiconductor, of which semiconductor photoresist technology is the most difficult, less than 5% localization. Currently the global photoresist suppliers are mainly Japan and the United States, occupying 87% of the global market (Japan occupies 72%).
Domestic leading: Nanda photoelectric (300346)
Nanda photoelectric is currently engaged in advanced precursor materials, electronic special gas, photoresist and ancillary materials, three types of semiconductor materials production, research and development, and sales. 21 years in March, Nanda photoelectric said that the company's own research and development of the ArF photoresist products have been successfully certified by the customer to become the first domestically produced certified ArF photoresist, which is currently only available in Japan. ArF photoresist, currently only small batch production.
Domestic do photoresist Shanghai Xinyang and Jingrui shares, are only completed KrF photoresist production, ArF photoresist is still under development. (Semiconductor photoresist technology rankings: g line photoresist
24. electronic special gas
From chip production to packaging, almost every link is inseparable from the electronic special gas, known as semiconductor materials, "food" electronic special gas. Electronic special gas is used in the production of semiconductors, solar cells, high-purity gas, film deposition, etching, doping, passivation, cleaning-based, commonly known as the chip cleaning and corrosion agents, the higher its purity, the chip's quality and the new can be more secure. At present, the electronic special gas to the United States air chemical group as the leader, market share of 25%, Chinese gas companies in the global total market share of 12%.
Domestic leading: Huat gas (688268)
Huat gas is the domestic special gas localization pioneer, break the gas material import constraints in the field of cutting-edge national gas manufacturers, is the only domestic gas company certified by ASML. The main customers are SMIC, TSMC, China Resources Micro and other high-quality customers. Accelerant Technology is a domestic specialty gases Dragon 2, the main customers foreign manufacturers such as Hynix, Samsung and other well-known enterprises.
25. Wet electronic chemicals
Wet electronic chemicals refers to microelectronics, optoelectronics wet process used in a variety of electronic chemical materials, can be divided into general-purpose chemicals (ultra-clean and high-purity reagents) and functional chemicals (photoresist supporting reagents). Ultra-clean and high-purity reagents are the reagents with the highest impurity content requirements among chemical reagents. Functional chemicals are generally used with photoresist.
Domestic leader: Jianghua Micro (603078)
Jianghua Micro is specialized in the production of semiconductor, solar energy and lithium batteries and other processes in the manufacturing process of special wet electronic chemicals, is currently the largest domestic production scale, a full range of service providers. 20 years of total revenue of 564 million yuan, of which the ultra-clean high-purity reagents 305 million photoresist reagents, 242 million. 242 million.
26. target
Targets in the semiconductor production process of wafer manufacturing and chip packaging are to be used, the chip industry is the composition of the target material and the highest performance requirements of the field. The role of the target is to the chip surface to make a metal line that can transmit information, the specific process is: in a high vacuum environment, respectively, bombarded with different types of metal sputtering target, so that the target surface atoms layer by layer deposited on the chip surface, the formation of a metal film, and then through a variety of processes will be etched into a nano level of the metal film metal line, and micro-transistor connection, so as to play a role in transmitting information. The main types of target materials are: aluminum, copper, stainless steel, titanium, nickel target and so on.
Domestic leading: research new material (600206), jiangfeng electronic (300666)
Research new material company under the research billion gold is currently the largest high-purity metal sputtering target manufacturing enterprises, and is the domestic put the guess what the most complete varieties of a complete industrial chain of a company.
Jiangfeng Electronics main products for a variety of high-purity sputtering targets, mainly aluminum targets, titanium targets, tantalum targets, tungsten and titanium targets, etc., the first to break the monopoly pattern of the United States, Japan multinational companies. Compared with the research new material, jiangfeng electronic more focused on the target material manufacturing, 90% of the revenue from the target material.
27.CMP polishing materials
CMP polishing technology is one of the wafer manufacturing process, through the chemical action and mechanical grinding of the wafer surface micron, nano-scale removal of excess material, so as to achieve the surface of the wafer flattening, and then complete the next step of the process.CMP polishing materials, the two most important materials are the polishing fluid and polishing pads.
Domestic leading: Anji-Tech (688019) (polishing fluid), Dinglong (300054) (polishing pads)
Anji-Tech currently produces chemical polishing fluid technology covers 130nm ~ 28nm chip process, mainly used in the domestic 8-inch and 12-inch wafer production line, and Semiconductor Manufacturing International Corporation (SMIC), TSMC, China Resources Microelectronics Corporation (CRMC), etc. Stable cooperation, is the only domestic company to provide the chemical polishing fluid technology, and is the only one in the world to provide the chemical polishing fluid technology to the chip manufacturers. We have stable cooperation with Semiconductor Manufacturing International Corporation (SMIC), TSMC, China Resources Microelectronics Corporation (CRMC) and other IC manufacturers, and we are the only supplier of chemical mechanical polishing fluid in China.
Dinglong is currently the only domestic company capable of providing polishing pads, the company from 19 polishing pads revenue accounted for 1.09% of total revenue in 20 years to 4.37%, the annual polishing pads revenue of 79,421,300 yuan, the rapid development and huge space.
28.Gallium Nitride GaN
Gallium nitride material is the research and application of the semiconductor industry's hot spot, because it and SiC, diamond together as the third generation of semiconductors have a wide bandgap, strong atomic bonding, high thermal conductivity, chemical stability, good characteristics, in the optoelectronics, high temperature and high power devices, such as the application of scenarios have a strong advantage. Currently gallium nitride is mainly used in LED, microelectronics, MOSFETs and chargers.
Domestic leader: InnoCSEC (unlisted)
InnoCSEC established the world's largest third-generation semiconductor industry chain R & D and production platform in Suzhou, completion of which will achieve a monthly production capacity of 65,000 pieces of 8-inch gallium nitride wafers, the company's products are mainly based on fast chargers for consumer electronics products, and it is one of the world's largest companies in the shipment of GaN power devices.
29. Silicon carbide SiC
Silicon carbide material also belongs to the third generation of semiconductors, with chemically stable, high thermal conductivity, thermal expansion coefficient is small. The current silicon carbide is less used in the semiconductor industry, mainly used in functional ceramics, advanced refractories, abrasives and metallurgical raw materials. Only high-purity single crystals are used to make semiconductors, such as high-power rectifiers, transistors, diodes, switching devices and so on.
Domestic leading: LuXiao Technology (002617)
LuXiao Technology is the new army on the silicon carbide track, the company believes that silicon carbide is the future of new energy vehicles, high-speed rail, smart grid, photovoltaic inverters, 5G base stations, etc. One of the basic materials. 20 years ago, the company invested in the construction of the silicon carbide industrial park in Hefei, including the growth of silicon carbide crystals, substrate fabrication, epitaxial growth, research and development production, the project scale is expected to be 10000 tons, and the project is expected to be completed in the near future. R&D and production, the total scale of the project is expected to be 10 billion yuan.
30. Photolithography
Photolithography is the core equipment for chip manufacturing, and photoresist will be used in wafer manufacturing and package testing. Both are involved in the photolithography process, photolithography refers to the surface of the silicon wafer coated with glue, and then the mask plate on the graphics transfer photoresist, the circuit junction copied to the wafer, this project has to be operated by the photolithography machine.
Domestic leader: Shanghai Microelectronics (unlisted)
Shanghai Microelectronics is currently the leading domestic photolithography industry, will be delivered at the end of the 21st SSX800 photolithography, adapted to 28nm precision.
31. Etcher
Etcher is an etching process used for chips, which refers to chemical and physical methods to develop the circuit diagrams permanently and accurately remain on the wafer, and selectively remove unwanted materials on the silicon wafer. Etching process is mainly divided into two kinds, wet etching and dry etching, the mainstream is dry etching
Domestic leading: China Microelectronics Corporation (688012)
19 years in the company's dielectric etching machine global leader in the etching machine in the global market share of 1.1%, the company's 5nm etching machine has been delivered to TSMC, and TSMC has a stable cooperation.
Technical highlights:
1, the stock price is in the bottom area, just off the bottom, the overall increase is small;
2, the front just after a period of sustained volume of small pull-up market, stood on the 30-day SMA, and it began to tilt upward, and then started to shrink the adjustment, the adjustment of the magnitude of the small, the 5-day SMA and 10-day SMA formed a dead fork, this is the sucker stage;
3, the cycle of adjustment is shorter, roughly in a week and within, this is the washout stage;
4, shrinkage stabilized, reported a large number of release in the large sun pull-up, the start of the pull-up market;
5, in the big yang pulling up, the 5-day SMA 10-day SMA 30-day SMA formed a multi-alignment again, you can find the plate to get involved in a low level.
Speculation of stock
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