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Full Text Summary
The PCB industry is facing rapid development opportunities and challenges. With the increasing demand for computing power and data transmission speed in electronic products, technologies such as High-Density Interconnect (HDI), high-precision drilling, and laser drilling have become crucial for enhancing PCB performance. However, high-end PCB equipment, including laser drilling machines, exposure machines, and laminators, still heavily rely on imports, and insufficient equipment capacity restricts industry development. Although domestic equipment is striving to catch up, it faces disadvantages in performance and price compared to imported equipment, and the process of domestic substitution is facing challenges. At the same time, companies in the industry are actively exploring technological innovation and capacity expansion to meet market demand while achieving self-controllable industrial chains.
Demand for High-End PCB Manufacturing Equipment and Challenges of Domestic Substitution
This discussion focuses on the demand for high-precision equipment in high-end PCB manufacturing, including the penetration capability of electrical lines, alignment accuracy of laminators, and requirements for exposure and etching machines. It emphasizes the challenges faced by domestic equipment in terms of capacity, cost, and performance under future industry trends, pointing out that current domestic equipment struggles to meet the demands of high-end PCB manufacturing, especially lacking advantages in competition with overseas products.
Discussion on Hole Density and Production Technology Upgrades in the PCB Industry
The dialogue revolves around the distribution and density changes of holes in PCBs, involving the number of holes in products such as GPU accelerator cards and switches, ranging from tens of thousands to hundreds of thousands. The application of laser hole technology is emphasized, pointing out the impact of high-density holes on capacity, such as needing 80 to 100 laser machines to produce 20,000 square meters of accelerator cards. Additionally, the differences between blind holes and mechanical holes are mentioned, as well as the high-density demand of 350,000 holes per side under 5G HDI technology, totaling 700,000 holes, showcasing the industry’s technological progress and production challenges.
Discussion on Dongwei Technology’s Plating Equipment and PCB Manufacturing Technology Transformation
The dialogue discusses the application of Dongwei Technology’s plating equipment in TB300 PCB manufacturing and the technological transformation of PCB equipment, especially changes in the preparation phase. Dongwei Technology’s VCP line and filling line equipment are considered suitable for high-end applications, and although domestic equipment has gaps in preparation accuracy and efficiency, it is approaching overseas levels, especially performing well in applications with fewer lines and shallower depths.
Analysis of PCB Materials, Drilling Efficiency, and Drill Bit Lifespan
This discussion covers the drilling efficiency and drill bit lifespan of different PCB materials (such as M6, M7, M8, etc.), pointing out that quartz cloth is harder and causes significant wear on drill bits, leading to a notable decrease in lifespan. For example, drilling efficiency and drill bit lifespan data are quantified for M8 and M9 materials, with M9 material requiring a tool change every 200 holes, while FR4 material can reach 12,000 holes. It is particularly noted that high-end products from NVIDIA, such as GB200 and GB300, have high drill bit demands due to their large number of holes and special materials.
Comparison of Laser Drilling Machines and Mechanical Drilling Machines in High-Tech Manufacturing
This discussion compares the application ratios and efficiency differences between laser drilling machines and mechanical drilling machines in high-tech product manufacturing, particularly in NVIDIA server production. It points out the necessity of laser drilling machines in high-end products such as 5G and 6G server manufacturing, as well as the challenges of stability and yield. It emphasizes the performance gap between domestic laser machines and international standards, as well as the rising demand for laser drilling machines in the future market.
Discussion on Technology and Cost in the PCB Industry
The dialogue revolves around the PCB industry, particularly discussing the cost of switch PCB materials, tool lifespan, and laser drilling technology. It points out that M8 material is expensive, and the lifespan of drilling tools affects costs, while laser technology is limited in certain scenarios but is expected to be applied in GPUs and switches in the future. It discusses that although coating tools are costly, they can extend lifespan, and laser drilling technology has limitations in thick plate and deep hole processing.
Trends in the Application of Ultra-Fast Lasers in HDI Board Micro-Hole Processing
The dialogue discusses the development trends of ultra-fast lasers in HDI board micro-hole processing, including the technological progress of reducing hole diameters from hundreds of microns to 50 microns, and the advantages of ultra-fast laser equipment in high-density, high-precision processing. It is expected that in the future, HDI boards such as mobile phones, switches, and accelerator cards will widely adopt ultra-fast laser processing technology with a 50-micron hole diameter, and the domestic PCB industry has a strong demand for this, making ultra-fast laser equipment a key trend in industry development.
Trends in Exposure Technology and Analysis of HDI Board Manufacturing Demand
The dialogue focuses on the application trends of exposure technology in HDI board manufacturing, emphasizing the technical parameter changes in the precision range of 30 microns to 65 microns, including high resolution, dry film compatibility, energy uniformity, production efficiency, yield, power adaptability, and XY-axis precision control requirements. It highlights the core role of computer algorithms in exposure machines, as well as stability and high yield as key considerations for future development.
Challenges of Domestic High-End PCB Equipment and Current Dependence on Imports
This discussion addresses the domestic substitution process of high-end PCB manufacturing equipment, particularly HDI exposure lines and plating lines. It points out that currently, high-end HDI exposure lines are monopolized by overseas brands, such as Italy’s Pretest and Germany’s Small, and although there are domestic attempts, effective alternatives have not yet formed. In terms of plating lines, Hong Kong companies like Baode Technology are actively introducing high-end production lines, but due to the high cost of equipment, domestic PCB manufacturers have low willingness to invest, leading to a market gap for high-end lines. It emphasizes that the high cost of equipment and the technological blockade by foreign enterprises are the main obstacles to domestic substitution.
Upgrading of Testing Equipment and Domestic Demand for Air Compressors
This discussion covers the technological breakthroughs and domestic trends in testing equipment in mainland China, including technical comparisons and market competitiveness among several companies, as well as the demand and usage of high-end air compressors in PCB factories, emphasizing the importance of equipment stability and component supply.
Discussion on Production Capacity and Technical Bottlenecks of High-End Equipment
The dialogue revolves around the production capacity and technical bottlenecks of high-end equipment such as orthogonal backplanes, GPUs, laser computers, HDI equipment, preparation machines, laminators, and exposure machines, pointing out that mainland China has shortcomings in these areas, especially in high-end exposure machines, ten-head machines, and gantry equipment, which still rely on imports. Domestic suppliers like Wuxi Changtong and Dongwei have advantages in specific fields but overall still need improvement. The meeting summarized the investment opportunities and challenges in equipment, emphasizing the importance of technological upgrades and supply chain optimization.
Q&A Review
What changes will there be in the requirements for computing power and transmission speed in the PCB industry from 2024 to 2025?
From 2024 to 2025, the industry’s demand for computing power will significantly increase, with transmission speeds for mobile communications and other components reaching 112G or even 224G, which requires higher precision, density, and the number of inner layer circuits in PCBs.
What specific requirements are there for equipment when manufacturing high-density PCBs?
When manufacturing high-density PCBs, high-precision PCB equipment materials provided by component suppliers are required. For example, drilling precision must reach 5 microns; otherwise, the board will be scrapped. The alignment accuracy of the laminator must be high to avoid signal discontinuity; exposure machines and vacuum etching machines also require high precision and performance, as customers are transferring some functions originally belonging to chips and PCD boards to PCBs.
What are the future trends in the development of the PCB industry?
The future trend is to transfer functions from chips and part of the substrate to PCBs to reduce losses and increase speed. This will drive the use of higher-end materials and technologies, including the adoption of Mijiu materials and other high-quality materials. The serious shortcomings of domestic equipment in high-end PCB competition are reflected in insufficient capacity and high equipment prices, leading to a lack of advantages in competition with overseas products.
Is there quantitative data on the number of holes per unit area in PCD boards (laser hole PCBs)?
There is indeed quantitative data on the number of holes per unit area. For example, in the production of NVIDIA accelerator cards by a leading company in the industry, the number of holes in the GD300 series has increased from 80,000 to about 100,000 compared to the GD200 series. The hole density of laser hole PCBs is increasing rapidly, with some GPU cards having 100,000 through holes, while multilayer structures of blind holes may reach tens of thousands to over 60,000 per layer.
Can Dongwei Technology’s plating equipment be used to manufacture TB300 specification PCBs?
Dongwei Technology’s plating equipment can be used to manufacture TB300 specification PCBs, as Dongwei mainly focuses on high-end VCP lines, and its GD300 equipment can complete the production of filling lines. The domestic Dongwei construction VCP equipment is leading in the industry and can meet the demand for TB300 PCB manufacturing.
What are the differences between domestic and overseas equipment in the production of 5G base station-related devices? How is the capability of domestic equipment distributed in handling PCBs of different thicknesses?
Currently, after years of research and preparation, domestic equipment has narrowed the gap with overseas equipment and can basically compete. The main difference may be in yield, as domestic equipment may not be as precise as overseas equipment. For PCBs with fewer lines and shallower depths, domestic equipment can be used for production; however, for PCBs with more lines and deeper depths, overseas equipment is preferred. Thus, domestic equipment has a good advantage in the domestic market.
What is the current proportion of preparation processes, and how does the drilling efficiency of different materials (such as M8 and M9) compare? How does the efficiency of domestic equipment compare to laser drilling machines when drilling a large number of holes?
The current proportion of preparation processes has not been provided with specific data, but in the drilling phase, the drilling efficiency of materials like M8 and M9 is relatively low, with fewer holes per device. Generally, a polo has only 10,000 holes, with an average processing efficiency of about 2 hours per run, which is faster than drilling through holes. For situations with a large number of holes, the efficiency of domestic equipment (M8 and M9 materials) is about five to three times that of laser drilling machines. If 10,000 PCBs need to be processed, using laser drilling machines may require 30 machines, while domestic equipment only needs about 10.
How much impact does quartz cloth have on the lifespan of drill bits compared to fiberglass cloth?
Quartz glass cloth is harder than fiberglass cloth, thus having a certain impact on the lifespan of drill bits. In the industry, among PCB materials like M6, M7, and M8, due to the high filler content, drill bit consumption is significant, generally requiring a replacement after one grinding. For high-end PCBs, more “massage” processing is needed, which significantly affects drill bit lifespan.
What is the approximate drilling lifespan for PCB materials at levels M7, M8, and M9?
The drilling lifespan for M7 level PCB materials is about 200 holes before needing a tool change; for M8 level, due to higher hardness, the drilling lifespan significantly decreases to around 500 holes; and for M9 level, the lifespan is even shorter, possibly only 200 holes before needing a drill bit change.
What is the ratio of laser machines to traditional mechanical drilling machines?
In the production of special PCBs such as those for NVIDIA, the ratio of laser machines is relatively high, with about one laser machine corresponding to multiple mechanical drilling machines, as laser machines have higher drilling efficiency and precision requirements in specific high-end PCB production. In mobile PCB production, the traditional ratio is about 100 mechanical drilling machines to 35-40 laser drilling machines, but in some mainland manufacturers like Zhongjin, the ratio may vary, mainly adjusted based on product structure and production efficiency.
What impact will the demand for high-speed switching devices in future servers have on laser machines?
If more companies like NVIDIA emerge in the future, along with the popularization of 5G and 6G technologies, servers will require higher-speed devices, such as 112G, 200G, or 1224G servers equipped with 4G and 5G HDI technology switches. This will necessitate the purchase of expensive laser machines, such as those priced between two million to three million yuan, to enable effective production.
How significant is the performance gap between domestic laser machines and imported high-end laser machines?
Domestic laser machines may be somewhat inferior to imported high-end laser machines, especially in terms of stability. Currently, domestic laser machines are more suitable for low-end usage scenarios, while high-end applications such as the production of NVIDIA products still rely on imported high-end laser machines.
Will yield issues affect the mass production of high-density products?
High-density products face yield issues (e.g., a 90% yield only results in a 30% actual output rate), making stability difficult to guarantee. Therefore, when producing high-density products, manufacturers are hesitant to take risks, even for well-known products from companies like NVIDIA, to avoid potential risks.
What is the approximate cost of M8 material (a type of PCB material)?
The cost of M8 material is relatively high, with a single sheet priced at 860 yuan. When making a 20-layer board switch, using ten sheets of M8 material costs 8,600 yuan, and with other expenses, the total price of the 20-layer board can reach 22,000 yuan. In this process, the proportion of M8 material is about 2%, and if the lifespan decreases, the quantity may increase.
With technological advancements, will diamond tools gradually replace existing mechanical drilling methods?
Although diamond tools are costly, they theoretically can improve efficiency and reduce costs. However, due to their limited lifespan and associated risks, they cannot completely replace existing mechanical drilling methods, especially in cases where drilling precision is extremely high and hole diameters are small, such as in micro-hole processing in the PCB industry, which still relies on mechanical drilling technology.
What are the future development trends of laser technology in the HDI design industry?
In the HDI design industry, hole diameters are gradually decreasing, with future developments expected to trend towards 75 microns or even smaller, and thinner glass cloth may be used to meet the demand for smaller hole diameters. For laser processing, this is a continuously positive trend, especially with the increasing demand for HDI technology in areas such as mobile phones and switches.
As hole diameters decrease, will there be more instances of using ultra-fast laser drilling equipment?
Currently, in China, product designs have begun to adopt laser holes of 50 to 75 microns, mainly reflected in 1.6T optical modules and 800 laser modules. In the future, as domestic BT whiteboard manufacturers layout ultra-fast laser machines, ultra-fast laser machines will be an important development trend for boards that require processing a large number of high-density holes (such as NVIDIA GPU boards) and will have significant advantages.
What specific improvements are needed in the technical parameters of mainstream exposure equipment, especially in terms of precision?
Currently, mainstream exposure equipment requires high precision, particularly for products in the range of 30 microns to 50 microns (or 65 microns), with high resolution and stringent requirements for dry film, especially for imported dry film HDI. Additionally, exposure machines have strict requirements for resolution, uniformity of exposure energy, and compatibility with dry films.
What specific demands are there for exposure machines in terms of efficiency, yield, and power adaptability?
Exposure machines need to have high efficiency, such as being able to expose multiple boards per hour; yield must be high, as rapid testing ensures high yield; power and transmitter power must match the light source to meet equipment operating requirements; in addition, attention must be paid to the XY-axis expansion precision, ensuring control within 15 microns under high floor precision requirements.
Which aspects of high-end PCB production equipment still rely heavily on imports?
In high-end PCB equipment, especially in equipment for high-end HDI products, the market is currently dominated by overseas manufacturers, with several manufacturers from Japan, Germany, France, and Italy holding a leading position. Although domestic companies are developing related equipment, large-scale substitution has not yet been achieved in the high-end market.
What are the essential auxiliary equipment for the production of high-end HDI products?
For the production of high-end HDI products, the key auxiliary equipment is a specialized drilling machine with extremely high precision requirements, which is expensive, close to the cost of two large CCD preparation machines, and currently, no domestic manufacturers can produce it on a large scale.
Which companies in China are currently developing high-end electrical lines, and what is the scale of investment in such equipment?
Currently, there are a few companies in China developing high-end electrical lines, with Dongwei being relatively specialized in VCP electrical lines. However, for special requirements such as 20:1, 30:1, and 40:1 electrical lines, most domestic companies are non-listed. Establishing a high-end electrical line along with supporting pure copper lines and other facilities requires a total investment of at least 50 million yuan, making it difficult for general PCB manufacturers to bear. Only a few companies, such as Baode and Finnish Circuit, will invest heavily in purchasing and building due to future strategic layouts.
What is the current situation of testing equipment in mainland China?
Currently, the technology of testing equipment in mainland China has made breakthroughs, with many high-end PCBs and AI testing machines transitioning from previously relied Israeli technology to domestically produced technology. For example, Kangtai Company has bought out the original technology and upgraded the equipment. Although the performance may be slightly inferior to products from Japan’s Oilfield, Taiwan’s Mude, and the USA’s Aobo, they still possess scanning and usage capabilities. Additionally, domestic companies such as Eagle Eye Technology are developing testing equipment, and companies like Zhengye and Yimei provide line testing and finished product appearance testing equipment.
What is the competitive situation in the domestic testing equipment market?
In the domestic testing equipment market, the market share of listed companies like Zhengye is being challenged, especially in areas such as online distance testing, where their technological advantages are gradually being eroded, and they no longer hold a dominant position. Currently, domestic testing equipment companies such as Kangdai, Jimei, Jiuchuan, and Eagle Eye are in fierce competition with international giants like Aobo from the USA, XZ, and Japan’s Oilfield and Taiwan’s Mude, with the gap narrowing.
What roles do air compressors and air conditioning play in PCB factories?
For newly established PCB factories, air compressors and air conditioning (water dispensers) are essential core equipment. Air compressors are mainly used to ensure stability and reliability during the PCB production process, as power outages or air supply interruptions can affect the normal operation of the entire factory; air conditioning provides a constant temperature environment to ensure efficient operation of equipment. Companies investing in factories overseas, such as in Thailand, typically choose Japanese brands of air compressors and air conditioning to meet local stringent usage requirements and component supply issues.
With increasing demand and technological upgrades, which high-end equipment may face bottleneck issues?
Fields facing bottleneck issues in high-end equipment include laser warplane inspection machines, laser computers, HDI protection equipment, preparation machines (drilling machines), laminators, high-end exposure machines, and solder mask exposure machines. Among them, solder mask exposure machines, due to their technical specificity, currently rely mainly on imported Japanese ORC exposure machines, as domestic equipment cannot meet the demand.
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