Samsung Electro-Mechanics and Sumitomo Chemical establish joint venture for ‘Glass Core’

Date: 
November 13, 2025

 

Samsung Electro-Mechanics has signed a memorandum of understanding (MOU) with the Sumitomo Chemical Group to establish a joint venture dedicated to producing Glass Core, a key material for next-generation semiconductor package substrates.

 

The partnership aims to overcome current technological constraints in package substrates amid growing demand driven by artificial intelligence (AI) and high-performance computing (HPC). According to both companies, Glass Core provides superior dimensional stability and flatness compared to conventional organic substrates, making it ideal for high-density, large-area semiconductor packaging.

 

Under the agreement, Samsung Electro-Mechanics will serve as the majority shareholder, while Sumitomo Chemical will hold a minority stake. Specific details—including ownership structure, corporate name, and business timeline—will be finalized next year. The joint venture will be headquartered at Dongwoo Fine-Chem’s Pyeongtaek site in South Korea, which will also house the initial production facilities.

 

Currently, Samsung Electro-Mechanics is developing glass package substrate prototypes at its Sejong pilot line, with mass production scheduled to commence through the new joint venture after 2027.

 

 

Source: samsungsem.com/global/newsroom