PCBLead-free selective thick gold plating is an advanced circuit board manufacturing technology that shields areas not requiring gold plating, allowing for precise thick gold plating only on specific regions (such as gold fingers, key contacts, etc.). This method avoids signal interference issues caused by leads in traditional processes and reduces production costs. Below is a … Read more
Recently, I had the privilege of receiving a book titled From Design to Mass Production: A Practical Guide for PCB Manufacturing for Electronic Engineers, co-published by Jialichuang and the Electronics Industry Press in April 2025. As a hardware engineer, the release of this book comes at a perfect time; it not only fills a gap … Read more
PCB warpage refers to the out-of-plane deformation of printed circuit boards that occurs after they are removed from the pressing fixture or specific environment, which does not meet design requirements. It can generally be subdivided into two forms: ✒︎ Bowing Deformation resembling a bowl or arch bridge, where the four corners of the PCB are … Read more
For the same PCB design work, some earn a million a year while others make five thousand a month—it’s not about the years of experience, but the technical skills you possess. 1. Entry Level (0-2 years): Tool User StageOnly knows basic routing: simple double-sided boards, conventional component layoutRelies on manual debugging: EMC corrections depend entirely … Read more
The appearance of “stair-step” or “irregular serrated edges” on PCB traces is usually not the intended design but rather a phenomenon that needs to be controlled, caused by a combination of manufacturing processes and physical principles. The core reason is the interaction between the edge effects of the photoresist layer (dry film or wet film) … Read more
Wherever there is electricity, there are printed circuit boards (PCBs). This course will share the basic knowledge of electroplating in PCB/HDI manufacturing. Due to the numerous knowledge points, it will be introduced in batches, and this is the first article. Course Objectives Understand what HDI is, the fields of application for HDI products, and the … Read more
PCB (Printed Circuit Board) is the cornerstone of modern electronic devices, and its manufacturing process is a complex discipline that integrates precision machinery, fine chemicals, and microelectronics technology. 🎯 Design Output and Substrate Preparation The PCB manufacturing process begins with the conversion of design data. The Gerber files generated by design software contain all necessary … Read more
In modern electronic devices, the combination of touch screens and LCD modules is central to achieving human-computer interaction. The bonding process between the two directly determines the product’s display effect, thickness, reliability, and cost. Among these, frame bonding is a fundamental and widely used bonding technology. 1. Introduction to Frame Bonding Technology Frame bonding, also … Read more
Many of the chips in your daily devices like smartphones, routers, and cars are ASICs (Application-Specific Integrated Circuits) — custom chips designed for specific functions. But did you know? An ASIC chip goes through over 30 critical steps from the idea of ‘I want to make a chip that can process signals’ to receiving a … Read more
Part One: What is “Chip Fabrication”? We can understand it as “the first trial print of constructing an ultra-complex skyscraper”. Imagine you want to build a special skyscraper—it is a microchip with billions of “rooms” (transistors), and the design is extremely complex. If you start construction directly and make a design error, the entire “building” … Read more