• What is wave soldering?

    Wave soldering is to make the solder side of the PCB directly contact with high temperature liquid tin for welding purposes,its high temperature liquid tin maintains an inclined surface, and a special device makes liquid tin form a wavy phenomenon, so it is called “wave soldering”,its main material is soldering tin bar. Wave soldering is currently the most commonly used and effective method, wave soldering system has a large enough tin can handle the maximum circuit board width you expect.Wave soldering is suitable for medium batch or large quantity welding. Advantage:...

  • The advantage of robot in PCB industry

    The advantage of robot in PCB industry Like the automobile industry and other manufacturing industries, industrial robots have brought many advantages to enterprises in the PCB industry. 1.Reduce the use of work, speed up the pace of work, improve work efficiency. 2.Improve operation precision and product quality. 3.To avoid the potential threat to the health and safety of workers from the operating environment and save the investment in environmental safety. 4.Reduce the loss of efficiency, quality and accident rate caused by repeated and boring processes...

  • Why PCB Design Software is Proving So Vital to Modern Circuit Board Ingenuity

    Printed circuit board (PCB) design software is a remarkable tool when it comes to designing PCB for electronic devices. By using the PCB design software, an engineer not only addresses issues associated with power integrity and signal, but is also able to modify and improve the entire circuit structure. PCB design software can be easily integrated with other associated plugin PLM software that can assist engineers to better analyze layouts and designs of PCBs. In recent years, the demand for PCB design software from the electronics manufacturing industry has been robust. According to the latest data released by Future Market Insights (FMI), the global market for PCB design software is set to witness a CAGR of more than 12% between 2016 and 2026 to rake in $4,755.1 million in revenues by the end of the forecast period. Needless to say, PCB design software eliminates issues faster and significantly reduces circuit......

  • The veteran’s answer about Crystal Oscillator (Part one)

    Someone who has just started to join in Electronic Industry,they often faced the questions about Crystal Oscillator,even they have researched a lot of resources from refernce books or internet,but many of them are still in confusion. Today I share with you some typical questions and answers from the veteran electronic engineer. What’s the fonction of Crystal Oscillator? The main fonction is providing a clock signal for the whole system. For example,the run model of CPU is step by step,every step defined an instruction that base on Crystal Oscillator. What’s the relation between Crystal Oscillator and timing sequence? Timing sequence is counted on the clock’s order,and the clock is generated by a Crystal Oscillator. Why we often set some different Crystal Oscillator on the same PCB? Evey different CPU or Chip has different frequencies,they need matched Crystal Oscillator to run. For example,USB1.1 needs 48MHz clock to be divided, so 12MHz crystal......

  • The veteran’s answer about Crystal Oscillator (Part two)

    USB1.1 needs 48MHz clock to be divided, so 12MHz crystal oscillator is required, and the frequency is 4 times that of 48MHz. Why don’t choose 48MHz Crystal Oscillator directly? Because high frequency crystal oscillator is easy to be affected by peripheral circuits or affect peripheral circuits. Most of the time,we get high frequency by using low frequency crystal oscillator with second harmonic generation. But it’s not absolute,many circuits is often used a crystal oscillator of 50M or more. That’s a key point that we need a special attention when we do PCB layout.   Why we use 32.768KHz crystal oscillator when the RTC clock needs a more accurate 1S (1 second)? Because all digital circuits are expressed by binary system,32768 is 1000000000000000 in binary system. So as long as we detect the highest bit changes, we will know that 1 second, don’t need to check every bit, the circuit is......

High-frequency high-speed PCB –5G core benefit PCB

As we all know, PCBs has many types according to different categories. However ,among all the PCB categories and PCB types, there are two types of PCB boards, which will benefit greatly from 5G applications 1. High frequency PCB board The high frequency PCB i s mainly used in the antenna and RF front end. In addition, the CCL of the high frequency PCB uses high frequency materials (PTFE and hydrocarbon) and FR-4,because the high-frequency material is softer than the FR-4 material. the consistency of the mixing process is poor,the production difficulty is increased, and the price and profit margin are higher. However, many high-speed boards used for 5G are high multi-layer PCB boards, especially the backplane PCB of the core network is even higher than 20 layers ( general PCB is 4,6,8 layers ), which can make the data rate  increase and smaller size for the base station What's more, the line width and line spacing are further refined, and the technical difficulty is naturally higher   2. High speed PCB board In general, due to the high difficulty...

Continue Reading

The Factors That We should Consider About Power Processing In PCB

The processing of the power plane plays an important role in PCB design. In a complete PCB design project, usually the power supply process determines the success rate of 30%-50% of the project Today, let's talk about the basic elements that we should  consider in the power plane processing during the PCB design process. 1   When doing power processing, we should first consider its current carrying capacity,which includes two aspects: a) Whether the power line width or the width of the copper is sufficient to consider the power line width The first step is to understand the copper thickness of the layer on which the power signal is processed. However, under the conventional process, the outer thickness of the PCB (TOP/BOTTOM layer) is 1OZ (35μm), and the inner copper thickness is 1OZ or 0.5OZ according to the actual situation For 1OZ copper thickness, under normal conditions, 20mil can carry about 1A current. But,  for 0.5OZ copper thickness, under normal circumstances, 40mil can carry about 1A current   b) Whether the size and...

Continue Reading

Introduction of PCB Vias & PCB Holes

1   Via design in high speed PCB In high-speed PCB design, multi-layer PCBs a r e often required. H0wever, vias are an important factor in multilayer PCB design. The via holes in the PCB a r e mainly composed of a hole, a pad area around the hole, and a POWER layer isolation area. Today, let's talk about the vias of PCB  and design requirements for vias in high-speed PCBs. In high-speed PCB multi-layer boards,signals a r e transmitted from one layer of interconnect to another and via vias a r e required to connect. And also,when the frequency is lower than 1 GHz, the via can play a good connection, However, when the frequency is higher than 1 GHz, the influence of the parasitic effect of the via on the signal integrity can not be ignored. At this time, the via appears as a discontinuous breakpoint on the transmission path which will cause signal reflection, delay, and attenuation. Signal integrity problem   2  Type of vias Blind hole: refers to the...

Continue Reading

Development of Flex PCB (FPCs) and substrate-like pcb (SLPs) in PCBs

Nowadays, as we all know, the development of mobile phones is becoming more and more intelligent, thin and light which means that the internal components of mobile phones will be further reduced or integrated. Under this trend, flex pcb  (FPCs) and substrate-like pcb (SLPs) in PCBs have the opportunity to be further promoted and applied. At present, FPC has grown to RMB 31.6 billion in the Chinese market. It is estimated that by 2021, China's FPC market will have an opportunity to reach RMB 51.6 billion with a compound annual growth rate of 10%. And today's mainstream Chinese brands of mobile phones use FPCs in 10 to 15 pieces,while iPhone X uses up to 20 to 22 pieces. We can see that there is still much room for improvement in the use of FPCs in Chinese smartphones market. At the same time, the FPC single value has reached 10 US dollars, the amount is still rising. However, FPCs are used extensively in smartphones for connections between components and...

Continue Reading

The Commercialization of 5G Application in PCB industry

With the construction and commercialization of 5G, we can expect that communication electronics and automotive electronics will become the new kinetic energy to drive the development of the PCB industry from 2019 to 2021. In fact, while 5G brings opportunities to the PCB industry, it also puts higher and more stringent requirements on PCB technology, whose stands in terms of speed, integration, heat dissipation, frequency, and multi-layering are much higher than 4G. Due to the high frequency microwave characteristics of 5G,the base station density is higher than that of the 4G base station. However, the processing frequency, data transmission and processing speed of various devices are much higher than the 4G era What's more,these core  devices, transmission devices, and antenna/RF devices place very high requirements on high-frequency, high-speed PCB boards Mainly reflected in four aspects 1) The base station RF unit and antenna have undergone major changes in structure and function, mainly because the number of radio unit channels increases (8 channels rise to 64 channels) and the corresponding PCB area...

Continue Reading

5G Mobile Phones Are Coming Soon !

5G was officially licensed in the first half of 2019,and the overall layout of the smart mobile phone industry will be earlier in advance. However, people expect that  the operator's 5G package is going to appear officially on the market in the fourth quarter of 2019. The sales of 5G mobile phones in 2019 may be relatively small. At the same time, the 5G module  expect to launched from high-end products. In addition, some people believe that from the beginning of 2020, 5G mobile phones will appear on a larger scale in the high-end models of various brands. What's more, the sales of 5G mobile phones in 2020 will be higher than 75 million according to a industry report which is more than 20% of the total sales in 2020 .However, If the price of 5G mobile phones  can reach 2,000 yuan by the end of 2020, which will definitely promote the sales of 5G mobile phones to further increase. On the one hand, mobile phones are the largest proportion of all kinds of consumer...

Continue Reading

The total number of 5G base stations nationwide at the end of 2019

The total number of 5G base stations Until July of this year,2019,38,000 base stations of 5G base stations have been built nationwide It is estimated that by the end of 2019, the total number of 5G base stations in China will reach 150,000. However,until the end of September last year,2018,China's mobile communication base stations have reached 6.39 million of which the total number of 3G/4G base stations reached 4.79 million. And, until  March of 2019,China Mobile has 2.41 million 4G base stations. Namely, 38,000 5G base stations are only about 1/150 of the total number of mobile communication base stations in China. What's more, we can estimate that it is less than 1/100 of the total number of 5G base stations that need to be built nationwide. Taking Guangdong as an example, by the end of June in 2019,Guangdong Province has built 8,949 5G base stations. In addition, according to the latest plan of Guangdong province, the number of 5G base stations in Guangdong Province will exceed 32,000 at the...

Continue Reading

The World’s history of PCB development and the history of China’s PCB development !

 01 World's history of PCB development In 1936, the founder of printed circuit board, Austrian Paul Eisler, first used printed circuit boards in radio installations. In 1943, Americans used the this PCB technology in military radios. However,in 1947, the US Aviation Administration and the US Bureau of Standards launched the first technical seminar on PCBs. In addition, In 1948, the United States officially recognized the invention of the pcb technology and used it for commercial purposes. In the early 1950s , due to the fact that problem of the bonding strength and weldability of copper foil and laminates of CCL has been solved, the performance of PCB became stable and reliable. And industrialized mass production of PCBs came into reality soon Copper foil etching technique became the mainstream of PCB manufacturing technology and started production of single-sided PCB boards In the 1960s, hole metallization was achieved, and double-sided PCBs were mass-produced In the 1970s, multi-layer PCBs developed rapidly and continued to develop in the direction of high precision, high density, fine line small holes, high reliability,...

Continue Reading

 Price Increase of Copper Clad Laminate ( CCL ) Leads To PCB Production Cost Rises

 Price Increase of Copper Clad Laminate ( CCL ) As we all know, CCL is a key raw material for printed circuit boards (PCBs) and can't  replace it with  other materials However, the world's second largest CCL (Copper Clad Laminate) plant-SY TECH  has risen 5% price on Copper Clad Laminate which can also reveal  strong market demand on PCB, because the industry confirmed that SY TECH  will increase its price in South China in September. And the first object is PCB factories in Mainland of China. In addition,the industry reported that the CCL price increase of  SY TECH  is mainly due to the fact that China's 5G infrastructure has driven Netcom's demand for CCL. What's more, Taiwan CCL plant pays close attention to market price dynamics Taiwan Optoelectronics revealed that the demand for the traditional peak season is really good And also,ITEQ said that the scale of the products in the middle and high-end products is gradually improving Besides, the industry pointed out that KB and SY TECH are the world's top two CCL manufacturers ,while Taiwan's South Asia shipments rank third. However, the price...

Continue Reading

The printed circuit board Output in Korea in 2018

The PCB production value sales is slow in Korea due to FPC board. In 2018, the domestic PCB production value was 9.8 trillion won (annual decline of 3.0%). The growth of global smart cell phone manufacturing has slowed down,causing the sales of RF components HDI substrates to decrease more than the sales growth of semiconductor PCBs. And the increase in sales of semiconductor PCBs is due to the increase in memory card demand. In 2018, the output of Korean printed circuit boards manufacturing industry reached 33.9 million square meters, with an annual decline of 3.8% The production output scale of rigid PCBs was 24.82 million square meters,with an annual decline of 3.1% However, as the demand for RF components fell,the Flex PCB industry segment fell by 9.3%. The semiconductor PCB with high added value per unit area has an annual growth rate of 5.4% and a production capacity of 2.55 million square meters. In South Korea, the market in Korea  limited by the extension of the smart phone replacement...

Continue Reading
Shenzhen Renchuangyi Electronics Co., Ltd
Tel: 0755-27314226
Building 4, JinFeng Industry Zone, Heping Village, Fuyong Town, Bao’an District, Shenzhen, Guangdong Province, PRC.:
About Rcy
Price & Service
Contact us
Heavy copper PCB
Rigid-flex PCB
Gold finger PCB
High frequency PCB
High multilayer PCBs
Fcp Machine
Inner Circuit
Rigid-flex PCB production
PCB Process
Rigid-flex PCB Process
PCB Capabilities
Rigid-flex PCB Capabilities
UL Certificated