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
In the wave of precision and miniaturization of modern electronic devices, printed circuit boards (PCBs) serve as the core carriers of electronic systems, and their performance directly affects the success or failure of products. Solder mask design, as a key part of PCB design and manufacturing, acts like an “invisible guardian” hidden beneath the circuits. … Read more
Many people have experienced making mistakes in PCB packaging—either making it too large or too small, or even having components obstructed, which leads to issues when soldering components after the PCB is manufactured, sometimes requiring manual wire connections; in severe cases, it may even result in the entire board being scrapped. For example, the U8 … Read more
During the production process of PCBA soldering, operational errors can easily lead to defects such as: cold solder joints, short circuits, component lifting, missing components, solder balls, component misalignment, excessive solder, incorrect components, cold soldering, reverse soldering, white/reverse side issues, misalignment, component damage, insufficient solder, excessive solder, solder sticking to gold fingers, and glue overflow. … Read more
During the reflow soldering process, circuit boards are often prone to warping and bending. In severe cases, this can lead to issues such as cold solder joints and component misalignment. How can we overcome these challenges? 1. The Dangers of PCB Deformation In automated surface mount lines, if the circuit board is not flat, it … Read more
Nowadays, the rapid prototyping of PCBs is incredibly convenient. By placing orders through online platforms, you can receive PCB samples without having to interact with factory personnel. However, if you are not familiar with the PCB production process, some quality issues caused by your own design may lead to misunderstandings during communication with the factory’s … Read more
Most engineers send the PCB files or Gerber files to the manufacturer and then wait for the boards to be returned. However, many hardware development professionals may work for years without the opportunity to visit a PCB manufacturing facility to see the entire production process. Today, I will take you on a tour to see … Read more
Follow 👆 Modern Electronic Assembly Process Technology Exchange Platform👆 Select “Pin/Star” to learn together and improve together! Previous Reviews Collection of Assembly Process Documents: ↓ ↓ ↓ Essentials | Selected Assembly Process Document Collection (I): Save it for later! Essentials | Selected Assembly Process Document Collection (II): Save it for later! Essentials | Selected Assembly … Read more
Printed circuit boards are like works of art; customers “propose” and set the qualification standards, while the board factory “reviews the proposal,” manufactures, inspects according to standards, and delivers. Due to the varying hardware conditions, talent pool, technology, and management capabilities of board factories, the “artworks” ultimately received by customers can differ significantly. The technical … 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