A PCB (Printed Circuit Board) is a board made of insulating material, designed to create conductive patterns for electrical connections between components. The conductive patterns formed on the insulating substrate are referred to as printed circuits. Thus, the finished board is called a printed circuit board, also known as a printed board or PCB. PCBs … Read more
The most basic purpose of PCB surface treatment is to ensure good solderability or electrical performance.Since copper in nature tends to exist in the form of oxides in the air, it is unlikely to remain as pure copper for a long time, so additional treatments are required for copper.There are now many PCB surface treatment … Read more
The process of transforming a printed circuit board from a blank panel to revealing the circuit patterns is a complex series of physical and chemical reactions. This article will analyze the final step—etching. Currently, the typical processing method for printed circuit boards (PCBs) employs the “pattern plating method”. This means that a lead-tin resist layer … Read more
Recommended | Bian Zhihan Oral | Lei Chengshi Editor | Xu Jiasang Source | Based on the content of the public live broadcast of “From Pressure to Vitality: Decoding Huawei’s Winter Survival Strategy” Lecture 2 01 Organizing the authorization matters from two dimensions: Organizational dimension, Process dimension First, authorize from the organizational dimension. What kind … Read more
In microcontroller chips, multiple groups of VDD designs are often seen. This design is intended to ensure power stability while reducing signal noise. This article will explore why multiple VDD groups are needed on microcontroller chips from the perspectives of internal circuit structure, power consumption, EMI/EMC, and how to design the VDD power system. 1. … Read more
Desktop Factory Follow Chemi to learn new knowledge Micro Chemical Engineering Click the border to bring up the video toolbar Molecular Machines Factory Reputation Gloomy Sky Dirty Air Discharged Sewage Pungent Smell In people’s minds Chemical plants are always inseparable from these scenes But if you jump out of these stereotypes You will definitely feel … Read more
ESD: Electro-Static Discharge refers to the release of static electricity. Static electricity is a natural phenomenon that usually occurs through contact, friction, or induction between electrical devices. It is characterized by long-term accumulation, high voltage (which can reach thousands or even tens of thousands of volts), low charge, small current, and a short duration of … Read more