September 2026 | SMT & PCB Assembly / Smart Manufacturing
As electronics products become increasingly complex and production cycles continue to shorten, SMT manufacturing is facing growing demands for greater flexibility, precision and digital process control. Solder paste printing, as a critical step in PCB assembly, is also undergoing technological transformation. Traditionally, solder paste is transferred onto PCB pads using physical stencils. While stencil printing remains a mature and efficient solution for high-volume, standardized production, the need for stencil preparation, replacement and management can create additional time and cost pressures when manufacturers face high-mix, low-volume production, frequent product changeovers and new product introduction (NPI).
Keiron Technologies recently further highlighted its LiFT (Laser-Induced Forward Transfer) technology, which uses a laser-driven, digital and contactless approach to solder paste deposition, offering a new technological path for solder paste printing. Unlike conventional stencil-based processes, LiFT enables precise solder paste deposition onto designated areas of a PCB through digital control, supporting a more flexible and programmable approach to production.
From “Stencil Printing” to “Digital Deposition”
For decades, stencil printing has been a core process in PCB assembly. Its basic principle is to use a physical stencil as a template to transfer solder paste onto specific pads on a PCB. However, as PCB designs become increasingly complex and product cycles become shorter, manufacturers need to achieve a better balance between precision, flexibility, changeover speed and quality control, making the limitations of conventional processes more noticeable in high-mix production environments.
LiFT takes a different technological approach. Instead of relying on a physical stencil designed for a specific PCB, it uses laser-driven deposition to digitally and contactlessly transfer solder paste onto designated areas. In simple terms, solder paste printing is moving from a “physical template” toward a “digital process,” allowing production teams to adjust deposition locations and related parameters through digital programs and improve manufacturing flexibility.
Why Does Stencil-Free Printing Matter for High-Mix Manufacturing?
As electronics manufacturing increasingly moves toward high-mix, low-volume production, the potential value of stencil-free solder paste printing becomes more significant. In industrial electronics, communications equipment, automotive electronics and AI hardware, manufacturers increasingly need to handle multiple PCB designs while shortening product development and production cycles. For these applications, production flexibility is becoming almost as important as production speed.
According to Keiron, LiFT is designed to address applications including rapid product changeovers, high-mix, low-volume production, NPI and prototyping, while supporting fine solder paste deposition, digital process control and real-time quality monitoring. By eliminating physical stencils, the technology has the potential to reduce some of the preparation and changeover steps associated with conventional printing, providing a more flexible option for production environments that require frequent product changes.
From “Printing” to “Printing + Measurement”
In addition to its stencil-free approach, the integration of real-time measurement and quality control is another notable aspect of digital solder paste printing. LiFT incorporates SPVM (Solder Paste Volume Metrology) technology to measure solder paste during the deposition process, creating a more integrated production model of “digital deposition → real-time measurement → quality feedback.”
Unlike conventional production models in which printing and inspection are treated as relatively independent processes, this approach enables closer integration between process execution and measurement data. As electronic components continue to become smaller and PCB designs increasingly dense, manufacturers need to control not only where solder paste is deposited, but also how much is deposited and whether it meets process requirements, helping improve production consistency and process control.
SMT Is Moving Toward More Flexible and Software-Driven Manufacturing
The development of digital solder paste printing also reflects broader changes across the SMT industry. Modern electronics manufacturing is no longer focused solely on equipment speed, but is increasingly emphasizing higher precision, greater flexibility, faster changeovers and stronger data visibility. This trend is also emerging across automated optical inspection, machine vision, intelligent placement systems, robotics, MES and smart factory platforms.
As a result, SMT equipment is becoming increasingly connected with software, data and intelligent process control. LiFT represents one example of this broader transformation, as manufacturing processes move from being primarily defined by mechanical structures toward digital control, programmability and flexible production. This does not mean conventional stencil printing will be rapidly replaced; for high-volume and highly standardized production, stencil printing continues to offer significant advantages in terms of maturity and efficiency. Instead, stencil-free digital deposition is more likely to gain initial traction in high-mix, low-volume production, NPI and applications requiring greater manufacturing flexibility.
Digital SMT Technology Is Reshaping the Electronics Manufacturing Ecosystem
The evolution of solder paste printing is part of the broader transformation of electronics manufacturing. As AI hardware, automotive electronics, high-speed communications, industrial electronics and semiconductor applications continue to develop, manufacturers are facing increasingly demanding requirements for precision, miniaturization, flexibility and production efficiency, driving continuous innovation across the electronics manufacturing ecosystem.
From solder paste printing and PCB assembly to inspection, automation and smart factories, different stages of production are becoming increasingly interconnected. Technologies including SMT, PCB assembly, machine vision, automated inspection, robotics, industrial automation and smart manufacturing systems are becoming more closely integrated. For manufacturers, the next stage of competitiveness may therefore depend not only on the performance of individual machines, but also on how effectively different technologies can work together to build a more flexible, connected and data-driven production environment.
NEPCON ASIA 2026: Exploring the Next Generation of SMT & Smart Manufacturing
Against this backdrop, NEPCON ASIA 2026 will take place from 27–29 October 2026 at Shenzhen World Exhibition & Convention Center, bringing together companies and professionals from across the electronics manufacturing ecosystem to explore emerging technologies, applications and manufacturing solutions.
Key sectors covered at the show include:
- PCB Assembly & SMT
- Semiconductor Packaging & Testing
- Optical Communications & High-Speed Connectivity
- Smart Factory & Industrial Automation
- Robotics & Machine Vision
- AI Hardware & Electronics Manufacturing
By connecting electronics manufacturers, equipment suppliers, technology providers and industry professionals, NEPCON ASIA provides a platform to discover advanced manufacturing technologies, identify new supply chain partners and explore emerging opportunities across the electronics manufacturing industry.
As SMT moves toward greater flexibility, stronger digital process control and smarter quality management, new technologies such as stencil-free solder paste deposition are opening up new possibilities for the future of PCB assembly.
NEPCON ASIA 2026 invites electronics manufacturing professionals from around the world to explore the technologies and solutions shaping the next generation of smart electronics manufacturing.
Date: 27–29 October 2026
Venue: Shenzhen World Exhibition & Convention Center (Bao’an)
Location: Shenzhen, China
Discover the cutting-edge technologies driving the next era of electronics manufacturing at NEPCON ASIA 2026.
Register Now:
NEPCON ASIA 2026 Registration
Please visit the official website for more information:
NEPCON ASIA 2026 Official Website
Contact for Overseas Visitor Enquiries
Walden Li
Mobile/WhatsApp/WeChat: +86 13651251335
E-mail: walden.li@rxglobal.com