In addition to supporting various components in PCB boards, copper clad laminates can also achieve electrical connections or electrical insulation between them. 1.Classification of copper clad laminates Copper clad laminates are composed of three parts: copper foil, reinforcement material, and adhesive. Boards are usually classified according to the type of reinforcement material and adhesive type…
Generally, there are several reasons for copper cladding. 1.EMC. For large-area ground or power copper cladding It will play a shielding role. Some special grounds, such as PGND, play a protective role. 2.PCB process requirements. Generally, in order to ensure the electroplating effect or lamination deformation, copper is laid on PCB layers with less wiring….
1 Surface tension The cohesive force of tin-lead solder is even greater than that of water, making the solder spherical to minimize its surface area (under the same volume, the sphere has the smallest surface area compared to other geometric shapes to meet the requirements of the lowest energy state). The effect of flux is…
Explore how Bosco PCB is revolutionizing printed circuit board design with innovative techniques and advanced technology, paving the way for the future of electronics and enhancing efficiency in manufacturing processes.
1 Line Generally, the signal line width is 0.3mm (12mil), and the power line width is 0.77mm (30mil) or 1.27mm (50mil); the distance between lines and between lines and pads is greater than or equal to 0.33mm (13mil). In practical applications, the distance should be increased when conditions permit;When the wiring density is high, it…
In any switching power supply design, the physical design of the PCB board is the last link. If the design method is not appropriate, the PCB may radiate too much electromagnetic interference, causing the power supply to work unstably. The following is an analysis of the matters that need to be paid attention to in…
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Most of today’s mass-produced electronic hardware is manufactured using surface mount technology, or SMT. In addition to offering many other advantages, SMT PCBs go a long way in speeding up PCB production time. As we all know, Jieduobang’s expedited service and board delivery period are very fast, so we have a very big advantage in…
Via is one of the important components of multi-layer PCB, and the cost of drilling usually accounts for 30% to 40% of the cost of PCB board manufacturing. Simply put, every hole on the PCB can be called a via. From the perspective of function, vias can be divided into two categories: one is used…
With NB-IoT reaching 50 million shipments this year and expected to reach 100 million next year, it has risen rapidly. A medium-speed (including 3G, Cat.1, eMTC (catm)) market between high-speed (5G and 4G LTE) and low-speed (2G GPRS and NB-IoT) is emerging. The time for LTE Cat 1 to take on the main role of…
1.What is Immersion Gold? Simply put, Immersion Gold is a method of chemical deposition that produces a metal coating on the surface of the circuit board through a chemical oxidation-reduction reaction. 2.Why do we need Immersion Gold? The copper on the circuit board is mainly red copper. The copper solder joints are easily oxidized in…
The heat generated by electronic equipment during operation causes the internal temperature of the equipment to rise rapidly. If the heat is not dissipated in time, the equipment will continue to heat up, the device will fail due to overheating, and the reliability of the electronic equipment will decrease. Therefore, it is very important to…
When designing PCB, I believe that experienced engineers have encountered this situation. During the wiring process, sometimes due to circuit structure or space limitations, a certain section of the line needs to be thicker or thinner, such as series resistors and capacitors, lower holes, BGA outlet areas or densely populated areas, etc., but the result…
PCB high precision is not a simple matter. It puts forward higher standards for the equipment and operator experience of enterprises, and it is also an important problem that cannot be avoided in production technology. Today, let’s talk about what conditions we need for high precision of PCB circuit boards? High precision of circuit boards…
In the frequency band greater than 10GHz, PCB microstrip printed antennas have obvious advantages over other antennas such as waveguide slot antennas, lens antennas, and reflector antennas. Mature PCB processing technology can effectively control the production cost of microstrip antennas. The multi-layer mixed pressure technology of antenna boards, RF boards, and low-frequency digital-analog circuit boards…
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