Jusung Engineering, a leading South Korean semiconductor equipment manufacturer, has achieved a global first by delivering the industry’s inaugural atomic layer growth (ALG) semiconductor fabrication tool. The equipment, developed in-house and unveiled on May 16, 2026, represents a paradigm shift in transistor fabrication, potentially overcoming key limitations of existing extreme ultraviolet (EUV) lithography processes.

Unlike conventional atomic layer deposition (ALD), which deposits materials atom-by-atom, Jusung’s ALG technology grows crystalline structures layer-by-layer—a method the company says reduces costs and eliminates the need for expensive EUV equipment. The breakthrough comes as the semiconductor industry grapples with the physical limits of Moore’s Law, with chipmakers struggling to shrink transistor sizes below 3 nanometers without exponential increases in power consumption and manufacturing complexity.

While Jusung did not disclose the identity of the global semiconductor manufacturer receiving the equipment, industry analysts suggest the recipient is likely a major player in the foundry sector, given the strategic importance of next-generation transistor technology. The company’s stock surged to its upper circuit limit on May 18, reflecting investor confidence in the commercial potential of ALG.

How ALG Differs from Existing Semiconductor Processes

Traditional semiconductor manufacturing relies on a combination of photolithography (using EUV light to pattern circuits) and etching to create progressively smaller transistors. However, as feature sizes approach 2 nanometers, the industry faces three critical challenges:

• Physical limits: EUV lithography requires increasingly precise optics, driving up costs by over 30% per generation.
• Power leakage: Smaller transistors increase parasitic currents, reducing battery life in mobile devices.
• 3D integration hurdles: Stacking transistors vertically (as in FinFET and GAAFET architectures) requires new materials, and processes.

Jusung’s ALG technology addresses these by growing crystalline semiconductor layers directly on substrates, enabling vertical transistor stacking without the need for EUV. The company’s proprietary process also reduces the number of deposition and etching steps, potentially cutting manufacturing costs by up to 20% compared to conventional methods, according to internal projections cited in the company’s announcement.

Industry Impact: Who Stands to Gain?

The ALG breakthrough carries significant implications for three key stakeholders:

1. Chip Manufacturers

Foundries like TSMC, Samsung Electronics, and Intel—currently investing billions in EUV infrastructure—may face a disruptive alternative. While ALG won’t replace EUV entirely, it could enable cost-effective production of certain high-performance chips, particularly in AI accelerators and data center processors where power efficiency is critical.

2. Equipment Suppliers

Jusung’s move positions it as a direct competitor to ASML (the sole supplier of EUV machines) and Applied Materials in the $100+ billion semiconductor equipment market. Analysts at Semiconductor Equipment and Materials International (SEMI) project that ALG could capture 10–15% of the next-generation fab tool market by 2030, though adoption will depend on yield validation.

3. End Users: AI and Automotive Sectors

The technology’s most immediate applications lie in:

• AI chips: Vertical stacking could enable higher transistor densities in GPUs without increasing power draw.
• Autonomous vehicles: Low-power, high-performance sensors could extend battery life in self-driving systems.
• Edge computing: Reduced manufacturing costs may accelerate adoption of AI at the network edge.

Companies like NVIDIA and Qualcomm have already expressed interest in alternative transistor architectures, though none have publicly committed to ALG.

What’s Next for Jusung and ALG?

Jusung plans to begin mass production of ALG equipment by late 2026, with initial shipments targeting leading-edge foundries. The company’s roadmap includes:

• Validation of ALG for 2nm and below transistor nodes (target: Q4 2026).
• Expansion of its ALG production line in Hwaseong, South Korea, with capacity for 500 units annually by 2028.
• Potential partnerships with materials suppliers to optimize ALG-compatible substrates.

The next critical checkpoint will be Jusung’s Q3 2026 earnings report, where the company is expected to provide updates on:

• First customer yields using ALG equipment.
• Pilot production agreements with foundries.
• Potential cost reductions compared to EUV-based processes.

Watch for official announcements on Jusung Engineering’s investor relations page.

Key Takeaways

• First to market: Jusung’s ALG is the first commercial semiconductor equipment to use atomic layer growth rather than deposition.
• Cost efficiency: Eliminates need for EUV lithography in certain applications, potentially reducing fab costs by 20%.
• Vertical scaling: Enables 3D transistor stacking without traditional photolithography limits.
• Market timing: Arrives as the industry debates post-EUV alternatives amid slowing Moore’s Law progress.
• Investor reaction: Stock surged 26.89% on May 18, reflecting high expectations for commercialization.

FAQ: What You Need to Know About ALG

Q: How does ALG differ from atomic layer deposition (ALD)?

While ALD deposits materials atom-by-atom in a self-limiting process, ALG grows crystalline structures layer-by-layer, enabling continuous film formation without repeated cycles. This reduces processing time and improves material quality for vertical transistor structures.

Q: Will ALG replace EUV lithography?

No—ALG targets specific applications (e.g., memory layers, vertical transistors) where it offers cost or performance advantages. EUV will remain essential for patterning critical circuit layers.

Q: Which companies might adopt ALG first?

Early adopters are likely to be foundries producing high-volume AI chips (e.g., NVIDIA’s H100 successors) or automotive processors, where power efficiency is prioritized over absolute performance.

Q: What are the risks?

Key challenges include:

• Proving yield equivalence to EUV-based processes.
• Scaling ALG for high-volume manufacturing.
• Potential resistance from incumbent equipment suppliers.

The semiconductor industry is at a crossroads. Jusung’s ALG breakthrough could redefine the economics of chip manufacturing—or fade if yield and scalability hurdles prove insurmountable. We’ll continue tracking developments as they unfold. Share your thoughts in the comments: Could ALG disrupt the $500B semiconductor equipment market?