As a leading electronic component manufacturer in China, Maijie Microelectronics (stock code: 300319) is known for its high performance, miniaturization, and high reliability in power inductor products, which are widely used in fields such as communication, consumer electronics, new energy, and automotive electronics. The following is a detailed introduction to the core technology, product series, and market advantages of its power inductor:
1、 Cor Technology and Innovative Design
1. Structural optimization and material innovation
Stacking process: Using low-temperature co firing technology (LTCC) and casting process, the DC bias and current resistance characteristics of the stacked power inductor are improved through special dielectric layer design. Compared with traditional wound inductors, the size is smaller and the thickness is thinner, making it suitable for high-frequency demand scenarios.
Side welding winding technology: By optimizing the magnetic core structure and flat wire winding process, the coil leads are welded to the side of the magnetic core instead of traditional lead slots, reducing the height limitation of the magnetic core and increasing the winding space. This technology significantly reduces direct current resistance (DCR), increases saturation current (Isat) and temperature rise current (Irms), and has a smoother and more aesthetically pleasing electrode surface, making it suitable for micro devices such as smartphones.
2. High power and high current design
Patent technology: The high current and high-power inductor patent (CN118782365A) applied for in 2024 adopts multi coil flat wire winding and magnetic core bracket design, supports automated production, and meets the high current carrying capacity requirements of electric vehicles, power management systems, etc.
Material selection: The magnetic core is made of NiZn ferrite, alloy magnetic powder or nanocrystalline magnetic powder, combined with a special magnetic adhesive (with a rise rate of 10%~200%) to optimize heat dissipation performance and high-frequency response.
2、 Main product series
1. Integrated power inductor
Features: Small size, high current, strong resistance to electromagnetic interference, low impedance, stable temperature rise, suitable for high-frequency applications.
Application: The core component of international mainstream mobile phone and consumer electronics manufacturers, with the highest market share in China.
2. Winding power inductor
Classification: including traditional winding and side welding winding.
Advantages: Adopting flat wire winding technology, dense wire arrangement, larger cross-sectional area of copper wire, reducing DCR and improving current capacity.
3. Stacked chip inductors
Process: Based on LTCC technology, it has significant high bandwidth characteristics and is suitable for 5G communication base stations and mobile terminals.
Performance: Low high-frequency loss, supports fast signal processing.
3、 Application areas and market advantages
1. Consumer electronics
Integrated inductors, which are used for power management and signal filtering in devices such as smartphones and tablets, dominate due to their size advantage.
2. New energy and automotive electronics
Photovoltaic inverters, car chargers, and battery management systems rely on their high current inductors (such as patented designs) to improve charging efficiency and system safety.
3. Communication equipment
The 5G base station and RF front-end module use stacked LTCC inductors to meet high-frequency and high power density requirements.
4. Industrial control
In scenarios such as power converters and servo motor drives, the high-temperature stability and surge resistance of wound inductors are outstanding.
4、 Technological advantages and industry status
1. Technological leadership
The few domestic enterprises that produce both LTCC filters and SAW filters have strong integration capabilities for RF front-end modules.
The shipment volume of integrated inductors ranks first in China, and the technical specifications of LTCC filters are industry-leading.
2. R&D and manufacturing capabilities
Through APQP and IPD process management research and development, combined with automated production (such as eight axis winding machines), improve yield and efficiency.
A strict supplier grading management system (A/B/C grade materials) ensures the quality of raw materials and stable supply.
3. Market recognition
Received honors such as "Second Prize of National Science and Technology Progress Award" (2018) and "Top 100 Chinese Electronic Component Enterprises", with clients covering top global communication and consumer electronics brands.
5、 Future development direction
Maijie Microelectronics continues to focus on the fields of 5G, new energy, and AIoT. It plans to further reduce production costs and promote the application of high-power inductors in intelligent vehicles and energy storage systems through mergers, integration, and process optimization. Its patent layout and technological iteration (such as thin wafer technology) are expected to accelerate the process of domestic substitution.
If you need specific product parameters or cooperation information, you can refer to their official website or contact their agents (such as Shunhai Technology).