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Latest analysis of the PCB market: global output in 2019 was about $61.34 billion, down slightly from a year earlier

PCB industry belongs to the basic industry of electronic information product manufacturing and is highly related to the macroeconomic cycle. Global PCB manufacturers are mainly distributed in China mainland, China Taiwan, Japan and South Korea, southeast Asia, the United States and Europe and oth... Read More

Infrared thermometer Introduction

The forehead gun (infrared thermometer) is designed for measuring the forehead temperature of the human body. It is very simple and convenient to use. Accurate temperature measurement in 1 second, no laser spot, avoid potential damage to eyes, no need to contact human skin, avoid cross infection,... Read More

Difference between KN95 and N95 Mask

KN95 is a standard Chinese mask. KN95 respirator is a kind of respirator with particle filtration efficiency in our country. KN95 mask and N95 mask are actually the same in terms of particle filtration efficiency.   KN95 is a Chinese standard mask, N95 is a U.S. standard N95 type mask is a NIOS... Read More

Remedy for copper foil falling off of Print circuit board in mobile phone repair

In the process of mobile phone repair, the copper foil of the circuit board is often peeled off. The reasons are as follows. First, maintenance personnel often encounter copper foil strips due to unskilled technology or improper methods when blowing components or integrated circuits. Second, p... Read More

Flying probe test

The flying needle tester does not depend on the pin pattern mounted on the fixture or bracket.Based on this system, two or more probes are mounted on tiny, free-moving heads in the x-y plane, and the test points are directly controlled by CADI Gerber data.The dual probes can move within 4 mil of ... Read More

Application of Automatic Optical Inspection Equipment in PCB Inspection

Machine vision is a branch of artificial intelligence is developing fast, in short, machine vision is to use machines to replace human eyes do measurement and judgment, machine vision system is made by machine vision products will be getting goals into image signal, and send it to the dedicated i... Read More

Printed Circuit board working layer

Printed Circuit board includes many types of working layer, such as signal layer, protection layer, silkscreen layer, internal layer, Multi- layers Circuit board Is briefly introduced as follows: (1) signal layer: mainly used to place components or wiring. Protel DXP usually consists of 30 interm... Read More

2020 Shenzhen Measures for enterprises to resume work when meet Coronavirus

General secretary xi Jinping’s important speech on epidemic prevention and control and overall planning for economic and social development is an important indicator for us to change the “dilemma” into “balance of two” and strive for double victories. We worked tirel... Read More

The rise of new forces in science, technology is accelerating

Scientific and technological innovation is becoming a new force in the fight against the epidemic. Recently, the central and local governments have issued new policies on “science and technology to fight the epidemic” to encourage enterprises to take part in epidemic prevention and co... Read More

How to design the safety spacing of PCB? Electricity-related safety spacing

How to design the safety spacing of PCB?                                                                          Electricity-related safety spacing 1. Spacing between circuit. For the processing capacity, the minimum spacing between wires should be no less than 4mil. The mini line spacing is the... Read More

Detail PCB through hole, back drilling points

 Through hole design of HDI PCB In high speed PCB design, multi-layer PCB is often used, and through hole is an important factor in multi-layer PCB design. The through hole in PCB is mainly composed of three parts: hole, welding pad area around hole and POWER layer isolation area. Next, we will u... Read More

16 kinds of PCB weld defects

Every day has learned a little of PCB and I believe I can become more and more professional in my work. Today, I want to introduce 16 kinds of PCB weld defects from appearance characteristics, hazards, causes.   1.Pseudo Soldering Appearance characteristics: there is an obvious black boundary bet... Read More
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