Driving R&D of glass components for scaling of semiconductor packaging substrates Tokyo, Japan, December 16, 2025 — TOPPAN Inc. (TOPPAN), a TOPPAN Group companyDriving R&D of glass components for scaling of semiconductor packaging substrates Tokyo, Japan, December 16, 2025 — TOPPAN Inc. (TOPPAN), a TOPPAN Group company

TOPPAN to Install Pilot Line for Advanced Semiconductor Packaging at Ishikawa Plant

2025/12/16 18:08

Driving R&D of glass components for scaling of semiconductor packaging substrates

— TOPPAN Inc. (TOPPAN), a TOPPAN Group company and wholly owned subsidiary of TOPPAN Holdings Inc. (TYO: 7911), will install a pilot line to conduct research and development of advanced semiconductor packaging at the Ishikawa Plant (Nomi, Ishikawa Prefecture, Japan) acquired in 2023, aiming to commission the line in July 2026.

Organic redistribution layer (RDL) interposer development to be conducted on the pilot line has been selected for the Research and Development Project of the Enhanced Infrastructures for Post-5G Information and Communication Systems / Development of Manufacturing Technologies for Advanced Semiconductors (subsidy), for which the New Energy and Industrial Technology Development Organization (NEDO) solicited applications.

In the area of advanced semiconductors used for applications such as generative AI and autonomous driving, packaging substrates are being scaled up and chiplet structures1 are being adopted to achieve higher densities. Chiplet structures require intermediate substrates called interposers2 to connect chips to packaging substrates. Silicon interposers are currently the predominant type, but due to challenges in scaling up, the industry is looking toward the establishment of interposer technology based on large glass substrates as an alternative to silicon.

Utilizing the new pilot line, TOPPAN will verify technologies for future mass production by pursuing R&D on components required for advanced semiconductor packaging, such as interposers using large glass substates as well as glass cores and organic RDL interposers.
The project selected by NEDO aims to simultaneously achieve low power consumption and high-capacity data transfer by developing submicron interconnect fabrication technologies for organic RDL interposers. TOPPAN will advance the development of technologies and materials in collaboration with Osaka Metropolitan University, Toyama Prefectural University, Shinshu University, the Institute of Science Tokyo, and the National Institute of Advanced Industrial Science and Technology.

Future Activities

In addition to R&D, TOPPAN intends to leverage relationships with its long-standing customers to identify advanced technology needs and clarify development targets to increase the speed of manufacturing technology development for glass cores, glass interposers, and organic RDL interposers. Through these efforts, TOPPAN aims to simultaneously achieve high-capacity data transmission and low power consumption. In collaboration with the universities it is working with on joint research, TOPPAN will also advance efforts to develop and recruit talent capable of driving the R&D and related initiatives.

Related Links

NEDO:
About the implementation framework for the Research and Development Project of the Enhanced Infrastructures for Post-5G Information and Communication Systems / Development of Manufacturing Technologies for Advanced Semiconductors (subsidy)
https://www.nedo.go.jp/koubo/IT3_100363.html
(In Japanese)

Ministry of Economy, Trade and Industry:
Notice of business operators selected for the Research and Development Project of the Enhanced Infrastructures for Post-5G Information and Communication Systems (December 3, 2025)
https://www.meti.go.jp/policy/mono_info_service/joho/post5g/20251203.html
(In Japanese)

1. Chiplet: A technology for providing large-scale circuits in a single package composed of multiple small individual chips.
2. Interposer: An intermediate substrate that electrically connects front and rear circuits with through-mold vias.

About the TOPPAN Group

Established in Tokyo in 1900, the TOPPAN Group is a leading and diversified global provider committed to delivering sustainable, integrated solutions in fields including printing, communications, security, packaging, décor materials, electronics, and digital transformation. The TOPPAN Group’s global team of more than 50,000 employees offers optimal solutions enabled by industry-leading expertise and technologies to address the diverse challenges of every business sector and society and contribute to the achievement of shared sustainability goals.
https://www.holdings.toppan.com/en/
https://www.linkedin.com/company/toppan/

Source: https://news.marketersmedia.com/toppan-to-install-pilot-line-for-advanced-semiconductor-packaging-at-ishikawa-plant/89178852

Release Id: 89178852

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