OSAKA, JAPAN – Flexible printed circuit boards (FPCs) have found uses in a wide variety of applications, including health/wellness, mobile devices, aerospace and many more. Conventional FPCs consist of copper patterns formed on the surface of a flexible film using standard subtractive printed circuit board fabrication processes. Historically, polyimide resin (PI) has been widely used because it is readily available and possesses heat-resistant properties which make it compatible with high-volume assembly processes like solder reflow. However, new applications and device designs like wearables are driving the development of more conformable circuits. Stiff, high-modulus films such as polyimide are not suitable for these products. Currently available pliable, low modulus films like thermoplastic polyurethane (TPU) are not compatible with conventional surface mount (SMT) assembly processes. Researchers at Panasonic Electronic Materials are developing a new material technology that overcomes the limitations of these conventional FPCs.

Development of Copper Clad Stretch (CCS)

To address the limitations imposed by (1) the stiffness of polyimide and (2) the poor heat durability of TPU, the researchers developed an innovative approach using a copper-clad pliable and stretchable thermosetting resin. This construction is abbreviated CCS for Copper Clad Stretch technology; meaning it can be stretched, unlike conventional copper clad laminates (CCLs). The same resin system is used for both the circuitry layer and the insulative coverlay. The coverlay construction consists of a PET protective film, uncured resin, and polyimide release liner. The unique thermosetting polymer technology can be used in both fully-cured and un-cured format depending on the application. The polyimide release liner in the coverlay also acts as a mechanical support for the soft circuit board during SMT process discussed later in the paper.

Heat Durability

Assuming exposure to typical SAC (Tin-Silver-Copper alloy) reflow conditions in the SMT process, the researchers conducted a solder float test at 288°C for 10 seconds and confirmed that no blistering or delamination of the CCS occurred. And the bare film made by etching CCS showed pliability and stretchability even after the solder float. On the other hand, TPU which is a thermoplastic resin, melted almost instantaneously and turned out to be incompatible with this SMT process.

Mechanical Properties

The resin of CCS is much more pliable than polyimide, leading to accommodation of various device form factors such as twisting and bending. Therefore, it is well-suited for non-planar and dynamic applications in healthcare, wearables, and the like.

A 10%-stretch cycle test for 10,000 cycles was conducted using a serpentine-patterned CCS. The sample finished the test without any failures in copper pattern. That means CCS has durability for stretch and is suitable for application requiring movements.

CCS Compatibility with Standard FPC Fabrication Processes

CCS was evaluated for standard PCB double-sided processes compatibility which consist of mechanical drilling, wet desmear, plating, chemical etching, coverlay patterning-molding, and surface mounting technology (SMT). The CCS could pass through the process. The polyimide release liner in the coverlay acted as a support structure for avoiding deformation during SMT.

Conclusion

This new CCS technology exhibits pliability and stretchability not possible with polyimide FPC products. Because of the temperature-resistant thermosetting resin system, CCS is compatible with reflow in the SMT process that TPU cannot withstand. As a result, CCS can be a foundational technology for building more pliable, conformable, and even stretchable devices utilizing conventional FPC manufacturing processes.

As a use case of CCS, a reconfigurable intelligent surface (RIS) has been developed by researchers in Osaka University to effectively deliver the radio waves in 6G band. The radio waves at these frequencies are easily blocked by buildings and other physical structures. Researchers in Osaka University fabricated a metasurface reflector that can be attached to various locations and whose angle can be adjusted by expanding and contracting. By the combining a metasurface pattern and the inherent stretchability of CCS, it is possible to reflect radio waves efficiently.

In addition to the research noted above, there are many product development projects in progress using the CCS technology. Panasonic Industry is proceeding with the development of CCS technology together with our customers and preparing for mass production.

SHANGHAI, CHINA – As a leading global supplier of electronic components, WIN SOURCE has solidified its position among the elite with a new ranking on SourceToday's 2023 Top 50 Electronics Distributors list. WIN SOURCE landed at number 18 this year, up from number 30 in 2022, showcasing its rapid growth and influence in worldwide electronics distribution.

The company attributes its high-ranking success to an unwavering commitment to customers, sustainable practices and harnessing technology. By integrating its core values into strategies across the business, WIN SOURCE has built trust and expanded its reach.

"We are thrilled to be recognized among the very top electronics distributors globally," said WIN SOURCE CEO Ethan Tsai. "This achievement reflects our dedication to optimizing every aspect of the supply chain experience, from procurement to delivery and beyond."

WIN SOURCE's customer-centric approach is key to its operations. The distributor can deliver quality components at competitive prices with transparency, tailored service and rapid fulfillment driving the business. A massive inventory of over 1 million SKUs ensures customers can access needed parts with ease.

"Our mission is to streamline procurement for electronics manufacturers around the world," Tsai said. "By making our customers' jobs easier, they can focus more resources on the innovative products and solutions relying on our components."

In addition to customer service, WIN SOURCE believes adopting sustainable practices is critical for future success. The company actively works to transform its facilities and operations to reduce environmental impact. From green buildings and energy-efficient data systems to paperless digital processes, WIN SOURCE paves the way for an eco-friendly supply chain. Employees also undergo regular training on sustainability principles and culture.

Embracing emerging technologies further propels WIN SOURCE's forward momentum. The distributor harnesses data analytics and automation to enhance efficiency, insights and scalability across its growing business.

"Digital transformation allows us to take customer experience to the next level while preparing our operations for the future," Tsai remarked.

WIN SOURCE's measured digital approach combines automated order processing and tracking with hands-on account management. This strategy provides the benefits of an advanced platform and a human touch. As the company expands, new technologies will enable scaling up without compromising service quality or the environment.

With its balanced strategy, WIN SOURCE achieved over $600 million in revenue last year – a 57% increase from 2021. Its global footprint now spans six countries across North America, Europe and Asia. By joining forces with over 3,000 manufacturers, WIN SOURCE's supply network reaches all corners of the electronics industry.

Tsai believes WIN SOURCE's greatest asset is its people. "Our employees drive our values every day and are the reason we continue to innovate and grow," he said. "Their expertise and dedication make a true difference for our customers and partners around the world."

As a purpose-driven organization, WIN SOURCE measures success not just in revenue and rankings – but in positive impacts made. Tsai concluded, "We'll always strive to be responsible global partners, empower our customers and build a more sustainable future."

For more information, visit win-source.net

PEORIA, AZ – HyRel Technologies , a global provider of quick turn semiconductor modification solutions, is proud to announce that Brian Watson, the company’s Founder and President, will be a featured presenter at SMTA International. The event is scheduled to take place on Tuesday, October 10 at 3:45 p.m., during the workforce development session at the Minneapolis Convention Center.

The SMTA is an international association for electronics engineering and manufacturing professionals. It offers unique access to local, regional, domestic, and global communities of experts, along with research and training materials from thousands of companies dedicated to advancing the electronics industry. SMTA boasts 55 regional chapters worldwide, 29 local vendor exhibitions, 10 technical conferences, and one large annual meeting.

Brian’s presentation will focus on workforce development and the successful initiatives undertaken by HyRel Technologies. He will share examples of successful partnerships, insights into the company’s innovative internship programs, and its approach to addressing the industry-wide skilled labor shortage.

HyRel Technologies recently celebrated the successful completion of its inaugural internship program, collaborating with Arizona State University (ASU) engineering students. These interns, now valued members of HyRel’s Robotics and Automation development team, exemplify the program’s success in fostering local talent and community engagement.

Watson expressed his pride in the interns’ achievements, stating, “We are incredibly proud of their growth and achievements. Welcoming them into the HyRel fold has been a rewarding experience, and we look forward to seeing their contributions continue elevating our team.”

As part of its commitment to addressing the skilled labor shortage in the semiconductor industry, HyRel actively seeks solutions. The company’s expansion plans for its internship program aim to involve 30-50 students from various companies across the Valley next year.

Watson shared his vision for the future of the program: “We're not just creating a talent pipeline; we’re fostering the next generation of industry leaders. Our goal is to expand the program, offering courses on semiconductor fabs, chip design, and even Mandarin language skills, reflecting the dynamic nature of the semiconductor industry.”

HyRel Technologies maintains compliance with critical industry standards, including GEIA-STD-0006, ANSI – J-STD-002, Mil-STD202, and Mil – STD-883, reaffirming its commitment to producing technology that meets the highest performance and reliability criteria.

HyRel remains dedicated to not only advancing its business but also fostering the growth and potential of individuals who will shape the future of the semiconductor industry. For more information about HyRel’s innovative internship program and its dedication to community engagement, visit www.HyRel.tech

PENANG, MALAYSIA – ViTrox, which aims to be the world’s most trusted technology company, is thrilled to announce an upcoming technical sharing session led by our Product Marketing Manager, Ms. Tan Piet Gek. The event, scheduled for October 11, 2023, at 11:30 a.m. in Room 202 A/B, promises to shed light on the transformative potential of A.I. Deployment in Verification Tools for Inspection Equipment towards Smart Manufacturing.

Ms. Tan Piet Gek's presentation will provide valuable insights into the seamless integration of artificial intelligence into data verification tools, with a focus on streamlining inspection buy-off processes. Attendees can expect to gain a deep understanding of how this technology can lead to a significant reduction in human labor dependency, minimization of errors and inconsistencies, and substantial operational cost reductions — paving the way for the future of Smart Manufacturing.

This session is a must-attend for professionals seeking to harness the power of automation and artificial intelligence to stay ahead in the competitive manufacturing landscape. Ms. Tan Piet Gek will be also available at our booth (#1316) for discussions and questions after the sharing session, offering attendees a unique opportunity to explore our cutting-edge A.I. integrated solutions.

Another gentle reminder is that we cordially invite all Explorers of the SMTAi Passport Program to visit our booth, delve into our award-winning Advanced Robotic Vision (ARV) solutions, and engage with us! Don't miss out on this amazing opportunity to meet and connect with us at SMTAi 2023, Booth #1316! Simply click the registration link to book an appointment and meet our field experts

Mark your calendars for October 11, 2023, and stay tuned for more details on this exciting event. For inquiries and additional information, please contact enquiry@vitrox.com. We hope to see you soon!