1. Introduction The copper in the vias of a printed circuit board (PCB) is akin to the neural network (blood vessels) of the human body, interspersed within the substrate “body” to provide the basic pathways for signal transmission and current conduction. Once a via copper break occurs, it is like a nerve being severed, preventing … Read more
Reflow Soldering Reflow soldering is an important soldering technology in the field of electronic manufacturing, primarily used to solder surface mount devices (SMD) onto printed circuit boards (PCB). The basic principle of reflow soldering: The core principle of reflow soldering is to re-melt the solder paste (a mixture of solder and flux) that is pre-distributed … Read more
Tungsten in the field of PCB (Printed Circuit Boards) is primarily applied in interconnection materials and advanced packaging technologies. Its high electrical conductivity, high-temperature resistance, and anti-electromigration properties make it a critical material. Below is a detailed analysis of applications and consumption: 1.Core Application Scenarios (1)Interconnection Materials and Via Filling Tungsten forms conductive layers for … Read more
1. What is a Dielectric? A dielectric refers to a substance or space that can transmit force, energy, or information under specific conditions. In physics and engineering, dielectrics typically refer to solids, liquids, or gases that can transmit mechanical waves, electromagnetic waves, etc. For example, in acoustics, air, water, and solids can serve as media … Read more
PCB, known as printed circuit board, is an essential interconnection component in electronic products, often referred to as the “mother of electronic products.”As the foundation of the electronic information industry, the PCB printed circuit board market is vast. According to the report published by the China Business Industry Research Institute titled “2023-2028 Development Trends and … Read more
Today, someone sent a picture to Lao Wu, asking about the several white translucent substances on the fixed seat of the PCB shown in the image. He didn’t know what they were or why they appeared on the PCB. I looked at the picture and thought it should be hot melt adhesive used for fixing … Read more
The PCB industry chain is structured as follows: Upstream Raw Materials — Midstream Substrates — Downstream PCB Applications Upstream Raw Materials Upstream raw materials include copper foil, resin, fiberglass cloth, wood pulp, ink, and copper balls, among which copper foil, resin, and fiberglass cloth are the three main raw materials. Copper foil is the primary … Read more
In the PCB industry, many friends will come into contact with conformal coatings. So, what exactly is this conformal coating? Today, let’s take a closer look. Conformal coating is a special formulation of paint primarily used to protect circuit boards and related equipment from environmental erosion. (Conformal coating refers to moisture-proof, salt spray-proof, and mildew-proof) … Read more
This article will deeply compare PCBA and PCB! We will start with their basic definitions and principles, exploring the key differences in design, manufacturing, and practical applications. You will learn how PCBs are constructed and how they differ from fully assembled PCBAs. We will also explore real-world application cases across various industries, discuss manufacturing and … Read more
1 [PCB Information Network]: XXX Circuit Board Factory is a newly established enterprise with goals and ideals, but the factory has poor execution and low efficiency. The boss thought, this cannot go on like this; let alone going public, when will we ever make a profit? So he waved his hand and ordered the entire … Read more