Guide to Learning Circuit Board Technology Overview This learning guide aims to help you review and consolidate your understanding of the circuit board technologies introduced in the source material. The source material discusses various types of Printed Circuit Boards (PCBs), their applications, key steps in the manufacturing process, and connection methods. It also covers different … Read more
Currently, technology is advancing rapidly, with precision circuit boards carrying thousands of signal transmissions, acting as the central nervous system of the intelligent world, linking key instructions together. Jingwang Electronics Co., Ltd. (hereinafter referred to as “Jingwang Electronics”), established in 1993 and listed on the Shanghai Stock Exchange in 2017 (stock code: 603228), has been … Read more
Guanghe Technology recently announced its 2024 annual report, benefiting from industry recovery, with revenue, profit, and cash flow all showing improvement. However, the latest annual report not only conflicts with previous disclosures but also contains contradictory items such as the guarantee deposits for commercial acceptance bills. The report’s response regarding whether related transactions exceeded the … Read more
PCB edge plating is a process that involves coating or plating conductive materials (usually copper) on the sides of the PCB along its height. Typically, ENIG surface treatment is used for plating at Jiepei. The purpose of edge plating is twofold. First, it provides reliable electrical connections. When the edge of the PCB needs to … Read more
Today, let’s discuss the color differences in PCB materials. Various types of boards produced by different manufacturers often exhibit subtle differences in color. These differences are not only related to the properties of the materials but may also reflect variations in their production processes and application fields. Differences in Color of Different Types of Boards … Read more
When the PCB returns to the red horizontal line above, it marks the true start of the market trend. The return process is also the process of a second pullback. Will the second pullback bottom out at 3220 points or 3180? It depends on where the PCB lands when it returns to the red horizontal … Read more
Introduction: In the previous article, we introduced the manufacturing process of PCBs, but we would like to delve deeper into the aspects of via copper thickness and the aspect ratio of PCB vias. Definition of PCB Copper Thickness The thickness of copper in a circuit is measured in ounces (oz). So, why is thickness expressed … Read more
When designing electronic products, it is often necessary to evaluate hardware costs. What components make up hardware costs? They mainly consist of the prices of components, PCBs, and SMT, which together constitute the cost of PCBA. In other words, calculating hardware costs primarily involves calculating the cost of PCBA. Let’s learn about the methods for … Read more
Common PCB Issues Quality Issues and Solutions (Part 1) In disputes between electronic product manufacturers and PCB suppliers, quality issues with PCBs have become a high-risk factor that triggers supply chain disputes. Since 2018, the PCB legal team at Maoda Law Firm has handled thousands of various contract disputes arising from quality issues. These real … Read more
During the outbreak of the pandemic in 2020, I found myself staring at the K-line chart of PCB leader Huadian Co., feeling frustrated — who would have thought that a small circuit board could become the “throat” of the global technology supply chain? That year, when Huawei was cut off from chip supplies, the entire … Read more