The most basic purpose of PCB surface treatment is to ensure good solderability or electrical performance.Since copper in nature tends to exist in the form of oxides in the air, it is unlikely to remain as pure copper for a long time, so additional treatments are required for copper.There are now many PCB surface treatment … Read more
Long-term gradual changes will lead to significant changes. With the increasing calls for environmental protection, the surface treatment processes for PCBs are sure to undergo major changes in the future. Currently, there are many PCB surface treatment processes, the most common being Hot Air Leveling, Organic Coating, Electroless Nickel/Immersion Gold, Immersion Silver, and Immersion Tin. … Read more
With the continuous development of electronic science and technology, PCB technology has also undergone tremendous changes, and manufacturing processes need to progress as well. At the same time, the requirements for PCB circuit board processes in various industries have gradually increased. For example, circuit boards in mobile phones and computers use both gold and copper, … Read more
Question: Can you explain why the board surface turns white after wave cleaning? After using a hot air gun, the whitened areas return to normal! Liao Xiaobo: This whitening of the board surface is mostly due to residual flux that has not been thoroughly cleaned, which appears when it absorbs moisture. Baking or using a … Read more
Long-term gradual changes will lead to significant changes. With the increasing call for environmental protection, the surface treatment processes for PCBs will definitely undergo major changes in the future. The Purpose of Surface Treatment The most fundamental purpose of surface treatment is to ensure good solderability or electrical performance. Due to the tendency of copper … Read more
Long-term slow changes will lead to significant transformations. With the increasing calls for environmental protection, the surface treatment processes for PCBs will undoubtedly undergo tremendous changes in the future. The Purpose of Surface Treatment The most fundamental purpose of surface treatment is to ensure good solderability or electrical performance. Since natural copper tends to exist … 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
Introduction to Senhui: Suzhou Senhui Semiconductor, supported by a strong research and technical team, focuses on providing complete process solutions and wafer services for global compound semiconductor customers. The team members have deep experience in the semiconductor industry, with decades of rich capabilities in photolithography, thin film processes, epitaxy, bonding processes, as well as etching, … Read more
Let’s learn about the composition, design, process, workflow, and principles of component placement and routing for PCB circuit boards, along with some considerations for the later stages! Composition of PCB Circuit Boards 1. Lines and Planes: The lines serve as the conductive paths between components, and a large copper area is designed separately for grounding … Read more
With the continuous advancement of technology, the quality control of internal PCB circuit boards has become increasingly strict, leading to a more urgent development and upgrading of PCB surface treatment technologies. This article introduces the commonly used PCB surface treatment technologies in the market today. What Is Surface Treatment? PCB surface treatment technology refers to … Read more