Samsung successfully developed the world's smallest power inductor

     Samsung Electronics announced that it has developed the world's smallest power inductor with a length of 0.4mm and a width of 0.8mm, which is smaller than the smallest power inductor "1210" in the market for mobile devices (width and length of 1.2mm and 1.0mm, respectively) and a thinness of 0.65mm. Samsung Electronics said it will supply the power inductors 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 the magnetic material need to be improved, and more coils need to be wound in a limited space. According to Samsung Electronics, in developing this power inductor, the company applied its semiconductor substrate manufacturing method, which is not only simple manufacturing but also increased efficiency to enable large-scale production, as well as the newly developed material manufacturing technology, which has been used to manufacture multi-layer ceramic capacitors (MLCC).

     At the same time, Samsung Electronics emphasized that the company has developed a raw material that uses ultrafine powder at the nanoscale and successfully separated the coils finely by applying a photosensitive method (a method of engraving circuits using light). "As electronics become 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 Research and development centre. "We have been working on the convergence of technologies, and we believe power inductors will become the second MLCC."

     The data show that the power inductor is a kind of inductor, mainly used in the power system, responsible for providing DC-DC power conversion function in RF and other devices. The inductor is able to convert electrical energy into magnetic energy and stored components, and the characteristics of the capacitor is the opposite, it has the characteristics of preventing alternating current through and letting direct current pass smoothly, often working with capacitors in the circuit, forming LC filters, LC oscillators and so on.