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Wiring features: 1. The placement direction of components determines the direction of wiring. 2. The wiring directions of adjacent layers are different. The wiring main body of the surface layer and the welding layer of the two panels is 90?3. The wiring direction of the rectangular circuit board is longitudinal. Horizontal wiring can easily cause […]
In high-speed PCB design, critical high-speed signal lines such as clocks need to be shielded. If there is no shielding or only part of it is shielded, it will cause EMI leakage. It is recommended that shielded wires be drilled and grounded every 1000mil. Rule 2 High-speed signal routing closed-loop rules As the density of […]
In the manufacturing process of electronic products, FPC flexible circuit boards play a vital role. Its softness and foldability make the design of electronic products more flexible while also improving the durability of the product. However, bending FPC circuit boards is not a simple task and requires some skills and precautions. 1. Durability of fpc […]
Printed Circuit Board (PCB) is a plate-like infrastructure used to connect and support electronic components. In modern electronic equipment, PCB has become the mainstream technology for circuit connection and support of electronic components. 1. Electronic equipment manufacturing Printed circuit boards are an important part of electronic equipment and are widely used in electronic products, including […]
Impedance matching Impedance matching refers to a suitable matching method between the signal source or transmission line and the load. There are two ways of impedance matching: serial and parallel according to the access method; impedance matching can be divided into two types: low frequency and high frequency according to the signal source frequency. High […]
1. PCB board surface treatment: OSP, HASL leadfree, immersion gold, immersion tin, immersion silver, hard gold plating, full board gold plating, gold finger,ENEPIG, OSP: lower cost, good solderability, harsh storage conditions, time Short, environmentally friendly technology, good welding, and flat. HASL leadfree: HASL leadfree boards are generally multi-layer (4-46 layers) high-precision PCB samples. They have […]
PCB blind buried vias are a common type of vias on PCB boards and are also a widely used process in circuit board manufacturing. But what are the step of blind and buried vias? How to judge accurately? 1. What are PCB blind and buried vias? PCB blind buried vias are a type of via […]
Direct Bonding Copper is a new type of high-performance heat dissipation material. It is a heat dissipation material that organically combines a copper layer with a ceramic substrate. The copper layer can effectively spread and disperse heat, while the ceramic substrate has good Excellent insulation performance and high temperature stability. DBC has the characteristics of […]
PCB board dimensioning plays a vital role in circuit design and production. It not only ensures the normal operation of the circuit board, but also improves production efficiency and reduces costs. This article will elaborate on the importance of PCB board dimension marking from four aspects, including design specifications, production process, assembly process and reliability […]
As technology continues to advance, the demand for electronic products is also growing. In order to meet consumer requirements for higher performance and smaller size, the multi-layer PCB lamination process has become a key link in the design of modern electronic products. Multi-layer PCB lamination process can provide higher circuit density. Compared with traditional single-layer […]
