What is Solder? Solder is a metal alloy that is used to join two or more metal surfaces together. It is commonly used in electronic circuits to connect components to printed circuit boards (PCBs) or to join wires together. Solder is typically made of a combination of tin and lead, although lead-free solder is becoming […]
Introduction to PCB Bottom The printed circuit board (PCB) is a fundamental component in modern electronics. It serves as a platform for mounting and connecting various electronic components to create a functional circuit. A typical PCB consists of two sides: the top side and the bottom side. In this article, we will focus on the […]
Introduction to PCB Drilled Holes Printed Circuit Boards (PCBs) are essential components in modern electronics, providing a platform for interconnecting various electronic components. One crucial aspect of PCB manufacturing is the creation of drilled holes, which serve multiple purposes, such as mounting components, establishing electrical connections between layers, and facilitating heat dissipation. In this article, […]
What is Via plating? Via plating is the process of depositing a layer of conductive material onto the walls of vias in a PCB. The purpose of via plating is to create an electrical connection between the different layers of the PCB. Without via plating, the vias would be non-conductive, and the PCB would not […]
What are Gold Fingers Made Of? Gold fingers are typically made of copper, which is then plated with a layer of nickel and a final layer of gold. The copper provides excellent electrical conductivity, while the nickel layer acts as a barrier to prevent the copper from diffusing into the gold layer. The gold plating […]
How Mid-Chip Solder Balls Work Mid-chip solder balls are typically arranged in an array pattern on the active side of the semiconductor chip. The solder balls are deposited onto the chip’s bond pads, which are the metal connection points that link the chip’s circuitry to the outside world. The bond pads have a metallization stack […]
Common BGA Soldering Errors Several factors can contribute to BGA soldering defects, such as improper solder paste application, incorrect reflow profile, poor package handling, and PCB design issues. The following are some of the most common BGA soldering errors: Bridging Open joints Head-in-pillow (HIP) Solder Voids Misalignment Tombstoning Solder Beading Insufficient or excessive solder Lifted […]
Visual Inspection Visual inspection is the most basic and straightforward method of testing PCBs. It involves examining the board with the naked eye or using magnifying tools to identify any visible defects or irregularities. Some common issues that can be detected through visual inspection include: Incorrect component placement Solder bridges or shorts Insufficient or excessive […]
Introduction Printed Circuit Board (PCB) soldering is a crucial process in the manufacturing of electronic devices. It involves the attachment of electronic components to the PCB using solder, a metal alloy that melts at a relatively low temperature. However, the soldering process is not always perfect, and various defects can occur, leading to malfunctions or […]
What are Plated Through Holes? Plated Through Holes, also known as PTHs, are small holes drilled through a printed circuit board that are electroplated with a conductive material, typically copper. These holes allow electrical signals to pass from one layer of the PCB to another, creating electrical connections between components on different layers. PTHs are […]
