Samsung Successfully Developed The World’s Smallest Power Inductor

Samsung successfully developed the world’s smallest power inductor, saying it is expected to become the "second MLCC"


According to the latest report from South Korean technology media ETNews, Samsung Electronics has recently announced that it has developed the world’s smallest power inductor, with a length and width of 0.4mm and 0.8mm, which are both smaller than the smallest power inductors currently on the market for mobile devices. 1210" is still small (1.2mm and 1.0mm in width and 1.0mm respectively), and the thickness is only 0.65mm. Samsung Electronics said,theyt will supply this power inductor to multinational mobile device manufacturers.


It is understood that the performance of power inductors usually depends on the number of magnetic materials and copper coils. In order to have better performance, the characteristics of magnetic materials need to be improved, and more coils need to be wound in a limited space.

According to Samsung Electronics, when developing this power inductor, the company applied its semiconductor substrate manufacturing method, as well as the latest material manufacturing technology developed. The former is not only simple manufacturing but also improved efficiency so that it can be mass-produced. The latter has been used to make multilayer ceramic capacitors (MLCC).

At the same time, Samsung Electronics emphasized that the company has developed an application of nano-level ultra-fine powder raw materials, and successfully separated the coils finely by applying a photosensitive method (the engraving circuit method using light).


“As electronic products become more and more advanced, the components that make up these products also need to become smaller and more advanced,” said Heo Kang-heon, director of Samsung’s Mechatronics R&D Center. “We have been committed to technology We believe that power inductors will become the second MLCC."


According to data, power inductors are a kind of inductors, which are mainly used in power supply systems and are responsible for providing DC-DC power conversion functions in radio frequency devices. The inductor is a component that can convert electrical energy into magnetic energy and store it. It is the opposite of the characteristics of capacitors. It has the characteristics of preventing alternating current from passing through and allowing direct current to pass smoothly. It often works with capacitors in circuits to form an LC filter. , LC oscillator, etc.


Inductance, capacitance and resistance are the same three passive components. In recent years, with the rapid development of industries such as 5G and new energy vehicles, the scale of passive components has continued to grow. On the one hand, the popularity of 5G mobile phones will significantly increase the amount of passive components. For example, 5G mobile phones are expected to use more than 1000 MLCCs and 120 inductors, while the corresponding 4G mobile phones are 550-900 MLCCs and 60- The amount of 90 inductors.


On the other hand, new energy vehicles will also significantly increase the amount of passive components. According to the data of the Taiyo Yuden Law Association, the average amount of passive components per mid-range car is about 6,300, and the average amount of high-end cars is about 8,200. The average number of cars has increased to about 14,000. In addition, the growth of industries such as data centers will also bring growth opportunities to passive components.


According to data from China Industry Information Network and Torch Electronics’ annual report, the overall market size of passive components is more than 30 billion U.S. dollars, of which capacitors, inductors, and resistors are on the order of 20 billion U.S. dollars, 4.5 billion U.S. dollars, and 3 billion U.S. dollars.

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