PCB-Assembly

 Wave soldering is a soldering method in the PCBA manufacturing process, mainly used for through-hole technology (THT) and mixed-assembly processes. The final soldering quality during wave soldering is affected by several factors, such as wave soldering equipment, soldering materials, and PCB boards. Below is a detailed explanation. 1. Wave Soldering Equipment Factors Equipment issues are one of the main factors affecting wave soldering quality, primarily involving the spraying of wave soldering flux, temperature control of temperature zones during soldering, and the stability of the conveyor belt. For flux spraying: It is essential to clean and replace flux nozzles promptly during wave soldering, and set the flux spraying time appropriately. This prevents uneven flux spraying, which could lead to wave soldering quality problems. For temperature zone control: Wave soldering systems typically have four temperature zones — preheating zone, temperature-rising zone, high-temperature zo...

 When we try to understand what a via is in the PCB, it is not only about knowing its definition, but more importantly, understanding its role in the circuit board. Signal Routing Vias in PCBs allow signals to pass vertically through the circuit board, enabling smooth interconnection between different layers. It is precisely for this reason that designers can achieve multilayer routing in a limited space. Power Distribution In multilayer PCBs, power planes and the ground planes need to be interconnected, which must rely on different types of vias. Through these vias, voltage can be stably transmitted and shorter return paths can be formed, making power distribution more reliable. Space Optimization The surface space is extremely valuable. Designers usually use different PCB via types to hide the traces in the inner layers. In this way, more space can be left on the surface of the circuit board for components such as chips, capacitors and inductors. Signal Integrity Via design not o...

 Rogers laminates are high-performance laminated materials with various models suitable for different application scenarios. The following is information about the parameters of Rogers laminates: High-Frequency Performance Rogers laminates exhibit excellent dielectric properties and can withstand high-frequency signal transmission. For example, RO3203 has a dielectric constant of 3.02 and can be used in the frequency range up to 40GHz. RO3206 and RO3210 have dielectric constants of 6.15 and 10.2 respectively, making them suitable for frequency ranges above 20GHz. Material Composition Rogers laminates typically consist of ceramic-filled and woven glass fabric-reinforced polytetrafluoroethylene (PTFE) laminates. These materials feature low loss, high impedance matching, and high signal transmission speed. Physical Properties The physical properties of Rogers laminates include good mechanical performance such as high strength, high rigidity, heat resistance, and chemical corrosion res...

  In recent years, LED PCB technology has become the core of modern lighting. From consumer electronics to automotive lighting, industrial equipment, and even plant growth lights and medical lighting, none can do without it. An LED PCB board, also known as an LED light circuit board, is the core component of the LED lighting system. It can provide structural support, achieve electrical connection and also help with heat dissipation. Because LEDs generate a lot of heat during operation, it is necessary to rely on good LED PCB board design and LED PCB assembly to improve energy efficiency, extend lifespan and ensure stable light output. At the same time, meet the needs of different product designs at the same time. This article will systematically introduce the core materials, advantages, applications and assembly methods of LED light circuit boards, helping you understand them more clearly and make appropriate choices for your next LED project. An LED PCB is a type of printed circui...