China consumes trillions of capacitors and resistors every year, and high-end products come from Japan.

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 China consumes trillions of capacitors and resistors every year, and high-end products come from Japan.


China is the largest market for basic electronic components, which consumes tens of trillions of resistors and capacitors in one year. The best consumer class capacitors and resistors come from Japan.Murata produced the laminated ceramic capacitors (the right side). Eastern IC dataMass consistency is not comparable to JapanCapacitance and resistance are the golden supporting roles in the electronics industry. The capacitor market is US $about 20000000000 a year, and the resistance is also 10 billion US dollars. The number one player in the market is Japan, occupying more than half of its share, represented by Murata, TDK and other enterprises; the Taiwan region is the second place; and the Chinese mainland products are mostly middle and low ends.We cant simply say that we are inferior to others, said Wu Yeqing, the general manager of the electronic engineer and Beijing Technology Co., Ltd., at the military level, domestic resistors can meet the demand; some special custom resistors can be produced by domestic companies. The difference between us and Japan is in the consumption level, mass production components. Mobile phones, computers, household appliances, cars... The consumer electronics industry is the largest user of capacitor resistance. In this area, the so-called high-end capacitor resistance, the most important thing is that the same batch should be as consistent as possible. Wu Yeqing said, Japan is doing the best in this respect, and the gap between domestic enterprises is great.Wu Yeqing said, domestic enterprises are equivalent to what dishes will be fried, but not guarantee that every time it is a smell.Basic electronic components can produce millions of pieces per batch, and consistency is extremely important for quality control. For example, if a capacitor is not up to standard, it may cause cell phone to charge more slowly, so the major brands of mobile phones only purchase the capacitor resistance of large manufacturers.Domestic enterprises are relatively weak in terms of technology, materials and quality control. Wu Yeqing said, there are some KnowHow .Pancakes are not hard to do, but they are even more smooth.MLCC (multilayer chip ceramic capacitor) is a typical example. It is the most basic component used in the consumer electronics industry, and is also a strong point for Japanese enterprises. At present, Japans MLCC products can achieve 1000 levels, and Chinese products are about 300 floors.MLCC is like a thousand layers of crisp, but its much smaller. Zhang Guanghua, an electronics engineer who worked for many years in the industry, said. The size of MLCC rice grain is a ceramic block with internal electrodes, which is laminated by hundreds of layers of ceramics and hundreds of layers of metal. The principle of capacitance is that two electrodes clamp a layer of insulating medium to store charge. The thinner the dielectric layer, the greater the value of the capacitance.Zhang Guanghua said that the production of MLCC is a bit like pancakes: ceramic powder, coated by a scraper, about 1 microns thick, and then on a layer of metal powder, which is the ceramic media attached to the electrode. After that, a large sheet of film was pressed, dried and sintered into porcelain.A thousand layers of pancakes, its hard to smooth. Zhang Guanghua said, the level of each household is different. If the pancake breaks a gap, the capacitance value is not big enough.Many links affect quality: Ceramic pulp and electrode pulp do not match, when drying will skin; drying too fast out of cracks, drying is not thorough also leads to defects; porcelain to be exposed to special gas; cooling too fast will crack...Zhang Guanghua said that if the link is not in place, the proportion of products may not meet the standard. The customer requirement is one million MLCC, and only one is allowed to fail.In addition, MLCC is very fragile. With the same specification, big brands may have better details and less mechanical damage.Japanese enterprises position high endEnterprises producing capacitors usually produce passive components such as resistors and inductors. The craft has a common place. Such as the largest consumption of electrical resistance of electronic products: film resistance, only the size of the toothpick head, ceramic based coating manufacturing, the process is not fine, the index is discounted.The material is the short board of Chinas electronic component enterprises: Ceramic pulp involves barium titanate and titanium oxide ceramic materials, mixed with organic glue and so on. The electrode slurry is mixed with nickel powder, copper powder and resin and so on. The formula needs to be studied. The highest quality ceramic paste and electrode paste are produced by Japanese company. Japanese giants such as Murata and KYOCERA started building materials and later made electronic components.Wu Yeqing said that after World War II, Japan focused on civilian electronics, and the gathering of electronic industries was conducive to the extension of Muratas material enterprises. Its like a factory that produces flour, and has opened a noodle shop.For decades, Japanese giants adhering to basic research and development have always focused on high-end. By the end of last year, basic electronics continued to rise, Wu Yeqing said, as several Japanese giants stopped producing thin profit products and focused on the high-end market. According to the industry estimates, as the mobile phone is thinner and more frequent, the volume of small and small performance components will increase greatly, iPhone uses the MLCC is the most mobile phone, the latest iPhone to use thousands of. The amount of computer and TV is much bigger than a mobile phone. Cars (especially electric vehicles) use more capacitance and resistance, and the quality of the components is demanding, because the conditions of impact, temperature, dust and corrosion are worse, and there is no hidden danger. Vehicle components market is large, but the technical threshold is very high. In the future, it may continue to be dominated by Japanese giants. Source: ScienceDaily daily - editor in charge of China Science and Technology Net: Hou Wei Cheng _NT4124For decades, Japanese giants adhering to basic research and development have always focused on high-end. By the end of last year, basic electronics continued to rise, Wu Yeqing said, as several Japanese giants stopped producing thin profit products and focused on the high-end market.According to the industry estimates, as the mobile phone is thinner and more frequent, the volume of small and small performance components will increase greatly, iPhone uses the MLCC is the most mobile phone, the latest iPhone to use thousands of. The amount of computer and TV is much bigger than a mobile phone.Cars (especially electric vehicles) use more capacitance and resistance, and the quality of the components is demanding, because the conditions of impact, temperature, dust and corrosion are worse, and there is no hidden danger. Vehicle components market is large, but the technical threshold is very high. In the future, it may continue to be dominated by Japanese giants.