PCB warpage is very common during the production and processing of PCBs. Once it occurs, it can seriously affect the performance and reliability of the product, such as poor soldering and component damage. How can we effectively control PCB warpage? First, we need to understand 1. Standards for PCB Warpage According to IPC standards, the … Read more
1. What Do PCB Colors Represent? The color of a PCB generally refers to the color of the solder mask that is most visually apparent when you receive a PCB board. The color of the PCB surface is the color of the solder mask. The dye used for PCB boards is a type of hardened … Read more
Hello, everyone. Last time we introduced the substrate in packaging, and this time we will discuss the processes involved in substrate manufacturing. After processing, the substrate mainly consists of two materials when viewed in cross-section — dielectric and metal. In terms of metal, the majority is copper, while solder joints are used for connections. In … Read more
According to semiconductor industry forecasts, by 2025, the scale of China’s chip industry is expected to exceed 1.2 trillion yuan, with a localization rate expected to reach 40%. Driven by the dual engines of the digital economy and new infrastructure, chips, as the “grain” of modern industry, are ushering in historic development opportunities. It is … Read more
In everyday life, we find that many PCBs in electronic products or devices are green. Do you know why? I believe there are several main reasons: 1. History and Tradition (The Core Reason) Military Origins: In the early stages of PCB development (mid-20th century), the U.S. military was the largest user and standard setter for … Read more
Drilling plays a crucial role in PCB design, facilitating electrical connections and component installation. Based on conductivity properties, holes can be classified into metallized and non-metallized holes, with metallized holes further divided into vias and component holes. These are the core structures for connecting interlayer circuits and supporting inserted components. During the prototyping phase, any … Read more
1. PCBA Production Process OverviewPCBA (Printed Circuit Board Assembly) production process encompasses multiple stages from design to finished product assembly, with the core steps as follows:1. Design and Material Preparation o Circuit Design: Use software such as Altium Designer and Cadence to complete schematic design, determine component parameters, layout, and signal integrity requirements. o PCB … Read more
Click the blue text to follow us In PCBA processing, there is a term that is repeatedly mentioned, which is the BOM (Bill of Materials). Some customers may think that the BOM is just a list of components, and sending an EXCEL spreadsheet is sufficient. Why is it referred to as a “lifeline”? Let’s break … Read more
PCB (Printed Circuit Board), also known as printed circuit board in Chinese, is an important electronic component and the support for electronic components. Since it is made using electronic printing technology, it is called a “printed” circuit board. Before the advent of PCBs, circuits were composed of point-to-point wiring. This method had low reliability because … Read more
With the rapid development of the PCB industry, PCBs are gradually moving towards high-precision fine lines, small apertures, and high aspect ratios (6:1-10:1). The copper requirement for holes is 20-25μm, and for boards with DF line spacing ≤4 mil, most PCB manufacturers face plating film issues. Film entrapment can cause direct short circuits, affecting the … Read more