Custom high-precision PCBA assembly solutions specifically designed for smartphones, integrating high-density placement and miniaturized component packaging technology. As the "neural center" of the smartphone, it is responsible for signal transmission and energy management of core modules such as processors, image modules, and radio frequency systems. With over 19 years of manufacturing experience, we achieve precise soldering of millimeter-level components and anti-interference layout, ensuring smooth operation of all scenarios including calls, imaging, and fast charging, and adapting to the differentiated production needs of high-end flagship phones and mid-range mass-produced phones.