Mastering Industrial Circuit Board Chip-Level Repair – 217 Pages
Some screenshots of e-books Some screenshots of course PPTs 【Complete Set of Hardware Learning Materials】
3D flexible circuit boards
Understanding the Working Layers of Circuit Boards
A circuit board, also known as a printed circuit board (PCB) or flexible printed circuit board (FPC), is made from polyimide or polyester film as the substrate, providing high reliability and excellent flexibility. The names of circuit boards include ceramic circuit boards, aluminum oxide ceramic circuit boards, aluminum nitride ceramic circuit boards, PCB boards, aluminum … Read more
Comprehensive Analysis: 7 Methods for Testing PCBA Circuit Board Performance
Click the blue text Follow us The Importance of PCBA Circuit Board Performance Testing In the electronics manufacturing industry, performance testing of PCBA (Printed Circuit Board Assembly) circuit boards is a critical step to ensure product quality and reliability. Jin Jian Laboratory, as a research and testing institution focused on optoelectronic semiconductors, possesses advanced testing … Read more
Hydrophobic Materials: The ‘Armor’ for Outdoor Jackets and ‘Nanny’ for Circuit Boards!
If hydrophobic materials could speak, they would probably refer to themselves as “life butlers” and “safety guards”—the hydrophobic fabrics that act as “armor” for outdoor jackets can withstand heavy rain while allowing sweat to escape smoothly; the hydrophobic adhesives that serve as “nannies” for circuit boards can firmly lock in moisture and sweat, preventing short … Read more
Job Introduction: Testing Applications Related to Programming Design Using MATLAB
Testing applications related to programming design using MATLAB. “The MATLAB syntax itself can be up and running in 1-2 weeks, but to make the testing professional, reusable, and embeddable in CI — it requires another 1-2 months to master the testing framework, reporting, and automation routines; overall, it is considered ‘easy to start, moderately difficult … Read more
Disassembling a Sensor You’ve Never Seen: What Makes Mining Sensors Unique
Today, comrades, we are going to disassemble a sensor used in mining.It feels heavy and substantial in hand.After all, it is meant to be used underground, where the environment is harsh.This is a sensor for detecting wind speed and direction. You can tell it has weathered many storms; the back is already quite worn, and … Read more
What Parameters Are There for Circuit Boards?
PCB Circuit Board Parameters 1. Dielectric Constant (DK Value): This usually indicates the ability of a material to store electrical energy. The smaller the ∑ value, the lower the energy storage capacity, and the faster the transmission speed. 2. Glass Transition Temperature (TG): When the temperature rises to a certain range, the substrate transitions from … Read more
How to Connect NPN and PNP Sensors to PLCs? Remember Two Words to Solve All Wiring Issues
How should NPN or PNP sensors be connected to PLCs or other devices? Actually, there is no need to memorize; understanding the concept of circuit allows you to connect them by referring to diagrams. Issues such as connecting sensors to devices, devices to devices, whether to connect the common terminal to positive or negative, whether … Read more
Development of Circuit Boards for Evaporative Coolers: Control Boards for Cooling Fans and Control Panels
Temperature sensor chip IC solution development for single temperature digital display electronic circuit board PC embeddedSupply SOP8 atomizer IC small appliance solution programming and burning includedWireless remote control chip EV1527 EV1527 surface mount SOP8 wireless decoding chip remote control chip
The Recycling Value of Old PCBs: How Much Do You Know?
Recycling Market ValueThe price of waste circuit boards mainly depends on the content of precious metals inside. Waste circuit boards that contain a lot of precious metals, such as television circuit boards, can be priced around 30,000 to 40,000 yuan per ton. A ton of computer boards generally contains approximately: 300-500g of gold, 130kg of … Read more