Fanklan Steven

Multilayer PCB   have many advantages, such as high assembly density, small size, shorter circuit board wiring spacing, faster signal transmission, and convenient wirinNowadays, there are more than 100 layers of circuit boards, four-layer boards and Six-layer boards are the most common printed circuit boards.   Why are multilayer PCB basically having even-numbered layers? In the process of design and production of multilayer boards, all levels need to be symmetrical. Asymmetry is likely to cause distortion. In the production process, four-layer boards are easier to control than three-layer boards. The warpage of four-layer boards can be controlled at 0.7%. Below (IPC600 standard), but when the size of the three-layer board is large, the warpage will exceed this standard, and the warpage exceeding the standard will affect the subsequent chip processing and product quality. Generally, multi-layer PCB design does not design odd-numbered layers. The difference in production cost b...

HDI PCB  is the product of the development of the times, because traditional printed circuit boards can no longer satisfy the fast-developing industries, so we should understand HDI PCB. HDI PCB is short for high-density interconnect circuit board, which means to leave more space on the printed circuit board to improve efficiency and transmission speed. High-density interconnect circuit boards are the fastest growing field in the printed circuit board industry. 1. What are the competitive advantages of HDI PCB From the perspective of technological development: the circuit board will become thinner and thinner, and the aperture will inevitably become smaller and smaller. In order to match the SMD package, the requirements for warpage must also be very high. From the perspective of market development: Due to the increasing requirements for motherboards of technology products such as mobile phones and computers, and the rapid rise of the electric vehicle industry, the increase in mark...

From the literal meaning, we can know that the rigid - flex PCB  is a combination of rigid and flexible circuit boards, and has the advantages of rigid - flex PCB s. Common rigid - flex PCBs  are composed of multilayer flexible circuit boards, which are connected to rigid circuit boards externally or internally. The bending degree of the flexible circuit boards is determined and needs to be determined during the design and manufacturing process. The advantages of rigid - flex PCB · Flexibility: The combination of two kinds of circuit boards allows it to have the freedom of shape when the flexible circuit board is packaged, and the accuracy and repeatability of the rigid circuit board · Minimize space and save manufacturing cost. · By eliminating the need for connectors and cables between various rigid components, the size of the circuit board and the overall weight of the system can be reduced, thereby improving the ability of the circuit to transmit signals without loss. · Re...

The structure of aluminum PCB Aluminum PCB has a structure similar to other ordinary circuit boards, consisting of more than one layer of copper, solder mask, insulating layer, and aluminum metal layer. Main functions of aluminum PCB ·The heat dissipation is strong. The current double-layer boards and multilayer boards have higher and higher density, higher power, and high requirements for heat dissipation efficiency. Conventional FR-4 is a poor heat dissipation conductor, and the heat cannot be effectively dissipated in time, resulting in electronic components High-speed failure, if a heat sink is installed, it will take up a lot of space, so the aluminum PCB can solve the heat dissipation problem. ·Using surface mount technology ·Replace fragile ceramic substrates to obtain better mechanical durability. ·General materials have thermal expansion and contraction, and printed circuit boards also exist. Thermal expansion and contraction will affect the service life of the circuit board. ...