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What is PCB Soldermask and Why Remove It? Soldermask, also known as solder resist or solder stop mask, is a thin lacquer-like layer of polymer applied to the copper traces of a printed circuit board (PCB). Its primary purpose is to prevent solder from bridging between conductors and creating short circuits during the soldering process. Soldermask also provides protection against oxidation and contamination of the copper traces. However, there are situations where you may need Read more…

What is LPI Soldermask? LPI (Liquid Photo Imageable) soldermask is a type of protective coating applied to printed circuit boards (PCBs) to protect the copper traces from oxidation, prevent solder bridges, and provide electrical insulation. It is a photosensitive polymer that is applied as a liquid and then cured using UV light. LPI soldermask is the most widely used soldermask in the PCB industry due to its excellent performance, durability, and ease of application. Advantages Read more…

Introduction to PCB Soldermask Printed Circuit Boards (PCBs) are essential components in modern electronics, forming the backbone of countless devices we use every day. One crucial aspect of PCB manufacturing is the application of soldermask, a protective layer that covers the copper traces on the board. While soldermask comes in various colors, green has emerged as the most commonly used option in PCB fabrication. In this article, we will explore the reasons behind the popularity Read more…

Introduction to PCB Fabrication and Common Issues Printed Circuit Board (PCB) fabrication is a complex process that involves multiple steps and requires precise control over various factors. Multilayer PCBs, in particular, pose additional challenges due to their intricate structure and the need for precise alignment between layers. In this article, we will discuss seven common problems encountered in the multilayer PCB fabrication process and explore ways to mitigate these issues. Request PCB Manufacturing & Assembly Read more…

What is PCB Solder Mask? PCB solder mask, also known as solder resist or solder stop mask, is a thin layer of polymer applied to the copper traces of a printed circuit board (PCB). Its primary purpose is to protect the copper traces from oxidation, prevent solder bridges from forming between closely spaced pads, and provide electrical insulation. Solder mask also helps to improve the overall durability and reliability of the PCB. Benefits of Using Read more…

What is PCB Solder Mask? Solder mask, also known as solder resist or solder stop, is a thin layer of polymer applied to the copper traces of a PCB. This coating serves multiple purposes, including protecting the copper from oxidation, preventing solder bridges during the assembly process, and providing electrical insulation between adjacent traces. Composition of Solder Mask Solder mask is typically composed of a photosensitive polymer, which can be selectively exposed and developed to Read more…

Introduction to Through-hole PCB Technology Through-hole technology (THT) is a method used in printed circuit board (PCB) fabrication where electronic components are mounted on the board using leads that are inserted into drilled holes and soldered onto copper pads on the opposite side of the board. This technology has been a fundamental part of PCB manufacturing for decades, despite the increasing popularity of surface mount technology (SMT). Advantages of Through-hole PCB Technology Stronger mechanical bonds: Read more…

What is Soldermask? Soldermask, also known as solder resist or solder mask, is a thin layer of polymer material applied to the surface of a PCB. Its primary purpose is to protect the copper traces and pads from oxidation, prevent solder bridges during the soldering process, and provide electrical insulation. Soldermask is typically applied through a screen-printing or photoimaging process and comes in various colors, with green being the most common. Soldermask Colors While green Read more…

What is UV Soldermask and Why Use It? UV soldermask, also known as solder resist or solder mask, is a thin lacquer-like layer of polymer that is applied to the copper traces of a printed circuit board (PCB). Its main purposes are to prevent solder bridges from forming between closely spaced solder pads, protect the copper traces from oxidation and corrosion, provide electrical insulation, and act as a barrier against contaminants like dust and chemicals. Read more…

What is a Blind Via PCB? A blind via is a type of interconnect used in printed circuit boards (PCBs) where the via starts on an outer layer and terminates on an inner layer, without going through the entire thickness of the board. Blind vias are commonly used in high-density interconnect (HDI) PCBs to increase routing density and reduce board size. Blind Via vs. Buried Via vs. Through Via There are three main types of Read more…