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Other Disclosures4186TOKYO OHKA KOGYO CO.,LTD.Materials and Chemicals

US-JOINT, a Japan-U.S. corporate consortium for next-generation semiconductor package development, begins full-scale operations

US-JOINT, a research and development consortium for next-generation semiconductor packaging established in California by 12 Japanese and US semiconductor-related companies, including TOKYO OHKA KOGYO CO., LTD., began full-scale operations in April 2026. The consortium will validate new packaging technologies at the facility and advance the development and commercialization of materials, evaluation and assembly technologies.

Worth reading
64In focus
0–100. This measures how worthwhile something is to read, not how good or bad the company is.
Direction
Improvement
Direction inferred from the company’s description.
Scale
12
Participating companies (number)
Wording
Definitive
How definitive the wording is.

Announced details

US-JOINTProducts including high-performance, high-purity photoresists
Applicable field (uses covered by this announcement)

Advanced semiconductor packaging processes, including patterning, bonding, molding and plating, as well as growth fields such as generative AI and autonomous driving

Launch dateApril 2026 (full-scale operations; already commenced)
What the company reported numerically
Usage history

12 participating companies (as of 20 April 2026)

Relationship between the counterparty and the company
TOKYO OHKA KOGYO CO.,LTD.4186
Relationship with the Company

A participating company in US-JOINT. Conducts research and development in materials, evaluation and assembly technologies through the consortium.

CounterpartyAzimuth IndustrialKLA CorporationKulicke and Soffa IndustriesMEC COMPANY LTD.Moses Lake Industriesナミックス株式会社TOPPAN Inc.TOWA株式会社ULVAC, Inc.3M CompanyResonac Corporation

11 Japanese and US materials and equipment manufacturers. Individual locations, representatives, paid-in capital, years of establishment and business descriptions are not provided.

Location (as indicated in this announcement)

Union City, California, US

Cleanrooms (Class 100 and Class 1,000)
Impact on Business Performance

The consortium aims to bring new technologies into commercial use and business at an early stage, but no specific impact on sales or profit is provided.

The company does not address Contract Value / Offering price.

Announced details
ItemDetails
Names of Products / Services CoveredUS-JOINT, Products including high-performance, high-purity photoresists
CounterpartyAzimuth Industrial, KLA Corporation, Kulicke and Soffa Industries, MEC COMPANY LTD., Moses Lake Industries, ナミックス株式会社, TOPPAN Inc., TOWA株式会社, ULVAC, Inc., 3M Company, Resonac Corporation
Counterparty overview11 Japanese and US materials and equipment manufacturers. Individual locations, representatives, paid-in capital, years of establishment and business descriptions are not provided.
Relationship with the CompanyA participating company in US-JOINT. Conducts research and development in materials, evaluation and assembly technologies through the consortium.
Launch dateApril 2026 (full-scale operations; already commenced)
Applicable areaAdvanced semiconductor packaging processes, including patterning, bonding, molding and plating, as well as growth fields such as generative AI and autonomous driving
LocationUnion City, California, US
Location scaleCleanrooms (Class 100 and Class 1,000)
Usage history12 participating companies (as of 20 April 2026)
Impact on Business PerformanceThe consortium aims to bring new technologies into commercial use and business at an early stage, but no specific impact on sales or profit is provided.
Items this document does not state (8)
Contract ValueOffering priceContract DateAward/certification nameAwarding / certifying bodyRegistration number and expiry dateQuantitative EffectsSource

These are items the company does not state in this document. We do not leave them blank, nor fill them in from other sources or by inference.

The reasons the company gives

The company's own explanation, not something inferred from the numbers.

Because opportunities to rapidly and practically validate new packaging concepts are limited. The consortium aims to identify market needs, combine the materials and equipment technologies of Japanese and US companies with US semiconductor users and ideas, accelerate research and development, and bring new technologies into commercial use and business at an early stage.

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US-JOINT, a Japan-U.S. corporate consortium for next-generation semiconductor package development, begins full-scale operations | TOKYO OHKA KOGYO CO.,LTD. (4186) timely disclosure | Komori