As the precision of PCB circuit board line production increases, issues of open and short circuits during line production have become significant factors affecting product qualification rates. Typically, actions to improve line qualification rates consider factors such as dry film adhesion and exposure energy. From the perspective of the entire system’s production, the flatness of … Read more
PCB Thermal Design: A Comprehensive Analysis from Theory to Practice Thermal issues are often the “Achilles’ heel” of many electronic products, especially in modern PCB designs with high integration and high power consumption. I remember a project I took on last year for an industrial control board, where the main chip had a power consumption … Read more
Metal is applied to exposed pads using an organic coating, known as surface treatment. The surface finish protects copper pads from scratches and oxidation while facilitating soldering in a reflow oven. Although there are various types of surface treatments, ENIG and ENEPIG are two common types. Manufacturers typically use them for ceramicPCBs, flexible boards, and … Read more
1: By Layer Count Circuit boards can be classified by layer count into three main categories: single-sided boards, double-sided boards, and multi-layer boards. First, single-sided boards have components concentrated on one side and traces on the other. Since traces only appear on one side, this type of PCB is called a single-sided circuit board. Single-sided … Read more
The PCB circuit board, after being coated with conformal coating, can effectively prevent moisture from damaging the circuit board. Prolonged exposure to moisture can significantly reduce the insulation resistance between conductors, accelerate high-speed decomposition, lower the Q factor, and corrode the conductors. Coating with conformal coating can effectively protect the performance of the circuit board … Read more
Some screenshots from electronic books 【Complete Set of Hardware Learning Materials】
▼ Follow WeChat public account: Engineer Looks at the Sea ▼ Hello everyone, I am Engineer Looks at the Sea, original articles are welcome to like and share! Analyzing, locating, and repairing circuits is a basic task for hardware engineers. Various strange problems always arise on-site, and we need to gradually locate and solve these … Read more
Printed circuit boards (PCBs) are the core components of electronic products, and their manufacturing and quality control are crucial for the healthy development of the entire electronics industry. To better regulate the PCB market, the Chinese government has established a series of relevant national standards. Below is a list of common PCB national standards, which … Read more
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PCB Network News There are numerous standards in the circuit board industry, but how many of the commonly used printed circuit board standards do you know? The following is for your reference: 1) IPC-ESD-2020: Joint standard for the development of electrostatic discharge control programs. It includes the design, establishment, implementation, and maintenance necessary for an … Read more