# Glass substrates still short of mass production as Absolics' timeline slips again

Canonical page: https://technooptimist.io/stories/glass-substrates-still-short-of-mass-production-as-absolics-timeline-e5e114c9
Date: 14 Jun 2026
About: [Absolics](https://technooptimist.io/companies/absolics.md) · [Covington glass substrate plant](https://technooptimist.io/computing/covington-glass-substrates.md)
Original source: https://www.koreaherald.com/article/10771160

Absolics first targeted mass production in 2024, then 2025, then customer approval in early 2026; SKC's latest filing gave no production date. A sample went to a US chip customer for reliability testing, and SKC raised about ₩1.17T this spring, roughly half for Absolics.

## Key facts

- Embedded design could cut package height from 3.9 mm to 1.8 mm, by the company's account.
- The process has about 190 steps; glass can crack, and drilling, plating and cutting remain hard.
- SEMI expects meaningful glass substrate volume only around 2028.

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