1. Abstract

In 2026, China's semiconductor industry will be in a new phase of capacity expansion peak. As the core equipment for high-purity semiconductor gas piping systems and chip hermetic sealing assembly, automated ring seam welding equipment will see rising market demand. The global semiconductor orbital welding market is expected to reach $2.048 billion by 2025 and is expected to continue expanding at a compound annual growth rate (CAGR) of 15.20%. The Chinese market holds a significant position in the global welding equipment market, with the Asia-Pacific region expected to account for 49.5% of the global welding equipment market by 2025, with China alone accounting for 57.5% of the Asia-Pacific market.

Driven by multiple factors such as wafer fab expansion, advanced packaging evolution, and accelerated domestic substitution, China's semiconductor industry's demand for automatic circumferential seam welding machines is upgrading from "supporting tools" to "core support equipment."

2. The core driving forces behind demand

The semiconductor industry's demand for automated welding is mainly driven by the following key factors:

1. The explosion of AI and high-performance computing: The surge in demand for AI smartphones, AI servers, and high-speed connectors has directly driven the market for precision welding equipment. For example, welding high-speed connectors in AI servers has become an important new market.

2. Innovation and popularization of terminal applications: Innovations in consumer electronics (such as AI smartphones and smart wearables) and automotive electronics (especially LiDAR) are constantly generating new welding demands.

3. Evolution of semiconductor packaging technology: The rapid development of advanced packaging (such as HBM stacking, CoWoS packaging) and power semiconductors (such as SiC devices) has driven demand for high-end automated soldering equipment such as hot-bonding (TCB) and silver sintering.

4. Pursuit of ultimate precision and reliability: Chip manufacturing requires soldering precision to reach micron or even submicron levels. Automated soldering can provide high precision, high consistency, and high reliability far beyond manual operations, which is crucial for ensuring chip performance and yield.

5. Improved quality and efficiency and alleviation of labor pressure: Automated welding can significantly boost efficiency. For example, AI robots have reduced welding time from 6 hours to 30 minutes, increasing capacity by 12 times. At the same time, it can effectively address the shortage of professional welders and rising labor costs.

3. Industry Background and Definition

3.1 Overview of the Ring Seam Automatic Welding Machine

The circumferential welder is a specialized welding device used for welding ring-shaped welded pipeline workpieces. In the field of semiconductor manufacturing, the ring seam automatic welding machine is mainly used in two major scenarios:

1. High-purity gas piping system welding: Processes such as thin film deposition, etching, and doping in chip manufacturing rely on ultra-high purity electronic gases. The quality of pipeline connections directly determines the purity and cleanliness of the gas, thereby affecting chip yield. Fully automatic orbital welding is a key process for achieving "zero-defect" welding of high-purity pipelines.

2. Chip Hermetic Assembly: Circumferential seam welding technology is also applied in parallel seam soldering packaging of semiconductor devices, such as airtight packaging for optoelectronic devices, MEMS sensors, and more.

3.2 Technical Features

The core performance indicators of semiconductor-grade annular seam automatic welding machines include: weld tracking accuracy typically requires a ±0.1mm and an X-ray flaw detection pass rate of over 99.5%. The equipment commonly uses TIG argon arc welding technology, combined with pure argon gas protection, ensuring the weld seams are silvery white or golden yellow (no oxidation), smooth inside, and defect-free.

3.3 Rise of Local Chinese Enterprises

Driven by domestic substitution policies, a number of local companies for automatic circumferential welder machines are emerging:

Suzhou Xian Energy Intelligent Welding Equipment Co., Ltd.: Deeply engaged in welding automation, holding 10 patents and software copyrights, independently developed M200/M400 welding control power software that achieves intelligent matching and real-time compensation of welding parameters. The products are widely used in semiconductor fields such as specialty gas pipelines.

4. Conclusion

In 2026, China's semiconductor industry will show the following characteristics regarding automated ring seam welding:

1. Strong demand: The global semiconductor rail welding market is growing at a CAGR of 15.20%, with China's market growth rate exceeding the global average;

2. Diverse driving forces: Four factors overlap: wafer fab expansion, domestic substitution policies, advanced packaging evolution, and high-purity material upgrades;

3. Technology Upgrades: Intelligent, digital, and high-precision are the main directions for equipment development;

4. Accelerated domestic production: Policy dividends continue to be released, local companies are making faster technological breakthroughs, and domestic substitution is entering the fast lane.

5. Outlook and Recommendations

For companies related to the ring seam automatic welding machine industry chain:

» Equipment manufacturers: should focus on high-precision, high-reliability, and intelligent technologies, increase R&D investment, and improve process database construction;

 » Wafer fabs and packaging and testing factions: Actively promote the trial and validation of domestic equipment, accelerating the process of domestic substitution while ensuring quality;

 » Investors: Focus should be placed on leading domestic companies in emerging fields such as advanced packaging and third-generation semiconductor pipeline welding.

The automatic ring seam welding machine has been upgraded from a "supporting tool" for semiconductor manufacturing to a "core equipment" that ensures chip yield. Driven by the dual growth of the semiconductor industry and accelerated domestic substitution, this segment is poised for long-term and certain growth opportunities.

Report date: Thursday, July 30, 2026