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
The main purpose of PCB Surface Finish is to protect the underlying copper layer from oxidation to ensure good soldering and electrical conductivity, and to continuously protect the solder joints from further oxidation after soldering. Below is a brief introduction to the advantages and disadvantages of common PCB surface treatment processes. 1. Bare Copper Board … Read more