Samsung hits an EUV blank wall: Hoya won't supply more
An EUV blank is a coated slab of glass that later becomes a mask. A boring part at the very bottom of the chain — until it stops being available.
The Elec reports that Samsung's purchasing organisation ran a simulation of next year's process in September and concluded EUV blank consumption will spike. Samsung asked Japan's Hoya to expand supply. Hoya replied that demand from other chipmakers is surging too, and that it cannot fully meet the request.
That is the whole story. No keynote, no slides, no numbers on a screen. Just a supplier saying: not that much.
What the refusal actually means
The figures in the report: Samsung burns roughly 5500 blanks this year. Its internal simulation sees consumption rising about 25% a year for the next three years.
That is not «AI demand is up» and not vague optimism. It is physical demand for a consumable. No blank, no mask. No mask, no EUV layer. The chain is short and rigid, and one supplier can say «no» faster than anyone upstream can rewrite a roadmap.
Who is really paying
Hoya's answer is not a scandal. It is a negotiating position. The blank supplier is having a rare moment: demand is rising across the board while capacity does not appear on command. So Hoya is not choosing between «yes» and «no» to Samsung — it is choosing between queues. Samsung is in that queue, and judging by the reply, not at the front.
The pain is not about a product. It is about pace. Memory, logic, foundry — all of it currently stretches along the number of EUV layers. Fewer blanks means less mask output, which means the next node ramp slips. And it slips by more than a week.
Three ways out, all expensive
First: pay a premium and buy priority. Second: qualify a second blank supplier, which takes years of validation. Third: slow the transition and stretch the current node.
The first hits cost. The second hits schedule. The third hits competitiveness. None of them reads like a «choice». They read like a bill.
And note the geography: this is an intra-Asian story. A Korean customer, a Japanese supplier, Taiwanese and Korean fabs standing in the same queue for the same blanks. While Western analysts argue about who ships the next node first, the answer may be sitting in an email about glass.
💬 What to argue about
- Is Hoya refusing because it physically cannot scale, or because it is picking customers? What would have to change for the answer to flip?
- Should Samsung pay the premium and hold the pace, or slow the transition and cut its dependence on a single supplier? Which is cheaper over three years?
- If the bottleneck is a consumable at the bottom of the chain, where else is an equally boring shortage hiding that will hit the next node?
Prediction: Samsung will either sign a long-term contract with a premium or start qualifying a second blank supplier — but for the next year, Hoya still sets the pace.
Disclaimer: supply chain leak, not officially confirmed
🤖 AI summary
- Date: 2026-11-10
- Source: www.thelec.kr
- Tags: Samsung, EUV, Hoya
- Key facts:
- An EUV blank is a coated slab of glass that later becomes a mask.
- A boring part at the very bottom of the chain — until it stops being available.
- The Elec reports that Samsung's purchasing organisation ran a simulation of next year's process in September and concluded EUV blank consumption will spike.
- Samsung asked Japan's Hoya to expand supply.
- Hoya replied that demand from other chipmakers is surging too, and that it cannot fully meet the request.
- That is the whole story.
- No keynote, no slides, no numbers on a screen.
- Just a supplier saying: not that much.
Source: www.thelec.kr · post in Telegram