Molding Choke prospects of magnetic parts enterprises are patent block at the door
Mar 18, 2019
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In recent years, with consumer electronics products the characteristics of light, thin, short, small, drive micro a integrated inductance (Mini Molding Choke) development, realize the miniaturization and integration of the inductance, development prospects, but technical barriers, oligopoly has become a manufacturer's problems. In inductive technology upgrading, Molding Choke prospects, magnetic parts manufacturers should be how to break one by one problem?
1.The future is bright
Molding Choke belongs to the upgrade product of winding inductance, is mainly used in switching power, high current resistance, stable magnetic properties, temperature stability, low audible noise, low radiation noise, impact resistance and other advantages, is suitable for mobile phones, automotive, aerospace, communication in various fields, such as the light and intelligent mobile terminal product of DC to DC power management module is also widely used.
At present, the global annual production capacity of traditional winding inductors is 24 ~36 billion. With the rapid penetration of the mobile phone market and the netcom market, it is estimated that about 12 billion pieces of production capacity is expected to be replaced by integrated inductors, that is, 30%~50% replacement space, corresponding to the new demand of about 1.7 billion yuan for integrated inductors.
Only to the mobile phone market demand, the current Molding Choke is mainly the application of the manufacturers such as apple, samsung, products in short supply. It is estimated by some institutions that by 2020, there will be 26 single mobile phones in use, with a penetration rate of 70%. The global annual demand will reach 36.4 billion and the market size will reach 7.28 billion yuan, with an annual compound growth of about 33%.
Due to Molding choke cost performance is better than that of wire wound inductors, the volume is small, but also widely used in PC and CNC equipment, application of don't, PC accounted for about 40%, netcom and Data Center accounted for 50%, 10% SSD and small network device.
2. Oligopoly
The integrated inductor is made by casting the hollow coil into the mold and filling the magnetic powder. Compared with the traditional magnetic sealing adhesive mode, it has the advantage of maintaining stability under large current. At present, this patented technology is mastered by Vishay from the United States and authorized to Japanese and Taiwanese manufacturers. In general, the patent technology, most of the turnover is still in the hands of a few large enterprises.
3. Technical barriers
Molding Choke is directly on the coil Molding manufacture with magnetic core material, formula and process is Molding Chock of the two key barriers.
Different magnetic powders, different proportions and different additives will have important influence on magnetic permeability, loss rate, frequency, magnetic saturation and other parameters. The formula of ferrite powder and ceramic powder needs to be precisely designed to make all kinds of soft magnetic materials have the characteristics of high magnetic conductivity, good dielectric constant, low loss and good high-frequency characteristics.
In molding baking link, the need to master the temperature below 300 degrees Celsius, high electrical conductivity of gold, silver, copper and other metals as conductive medium, one-time baking circuit cascade together on all key technologies, to overcome the ferrite material and other materials were burning the technical difficulties, the eutectic between different materials need to be solved, sinter, etc.
4. Layout as soon as possible and accelerate innovation
In this regard, some manufacturers have smelled the wind, and actively carry out industrial layout. As early as the end of last year, majie technology raised 850 million yuan through private placement to invest in the integrated small size inductor project of rf SAW filter and MPIM, and has realized the supply of small quantities. Data show that the production of chip inductors in mainland China is mainly concentrated in leading enterprises such as shunluo electronics and maijie technology.
Inductance, as it were, continuous innovation to upgrade products, Molding Choke is in short supply, the next five years will be industry high-speed growth period, the oligopoly and technical barriers to no breakthrough, vendors should be performed as soon as possible in the neighborhood layout, work on technology innovation. Magnetic parts enterprises should also take a long view, enlarge the pattern, actively learn lessons from the layout of the enterprise, constantly research and development of new materials, development of new technology, focus on the research of patent core technology.
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