Apple is running into a problem that money alone cannot fix.
According to a new report from Nikkei Asia, Apple is facing a serious shortage of a key chip component known as glass cloth, and the crunch is expected to last until at least the second half of 2027.
It is not just an Apple problem either. This is what happens when the AI boom collides with a fragile, highly specialised supply chain.
“One of the biggest bottlenecks for 2026”
Glass cloth might sound obscure, but it sits at the heart of modern chip design.
Apple was one of the first companies to adopt high-end glass cloth fiber for iPhone chip substrates, largely because of its dimensional stability, rigidity, and ability to support high-speed data transmission. In short, it helps advanced chips run faster and more reliably.
The issue is that Apple is no longer alone.
As Nikkei Asia explains, glass cloth is a critical material used in chip substrates and printed circuit boards, which form the foundation of virtually every electronic device. The most advanced versions of this material are produced almost entirely by one Japanese supplier, Nitto Boseki, often referred to as Nittobo.
And that is where things start to break.
AI Chips are Soaking Up The Supply
Thanks to the explosion in AI hardware, companies like Nvidia, Google, and Amazon have also shifted to high-end glass cloth for their AI accelerators.
That sudden demand spike has created a supply crunch that looks a lot like the memory chip shortages of recent years, complete with rising prices and limited availability.
At one point, Apple, AMD, and Nvidia reportedly sent staff to Japan in an attempt to secure additional supply directly. It did not work.
As one source bluntly told Nikkei Asia:
“No additional capacity is no additional capacity, even if you pressure Nittobo.”
Apple is Looking Elsewhere, But it is Not Easy
Apple has not been sitting still.
The report says the company has reached out to the Japanese government and has also been working to develop alternative suppliers. That includes sending Apple engineers to a smaller Chinese glass fiber company called Grace Fabric Technology, while asking Mitsubishi Gas Chemical to help oversee quality improvements.
On paper, that sounds promising. In practice, it is incredibly hard.
Other hopeful entrants include Taiwan Glass and several Chinese manufacturers, but the barriers to entry are brutal. Each glass fiber is thinner than a human hair and must be perfectly round, bubble-free, and consistent at scale.
According to industry executives cited by Nikkei Asia, no major tech company is willing to risk mounting high-end chips on substrates that could compromise performance or reliability.
The result is lots of interest, very slow progress, and no real short-term fix.
It is not just Apple
The report also name-checks Qualcomm as another major player scrambling to manage the same problem. When companies across smartphones, PCs, and AI infrastructure are all chasing the same specialised material, something has to give.
For now, that something is supply.
Closing
This glass cloth shortage is a reminder that even the most powerful tech companies in the world are still constrained by physical manufacturing realities.
You can design the most advanced chips imaginable. You can book capacity at TSMC years in advance. But if a single critical material is bottlenecked, everything downstream feels it.
With AI demand still accelerating and no clear expansion in glass cloth capacity, this could quietly shape product timelines, costs, and chip availability well into the late 2020s.
And it shows that the next big tech constraint may not be compute. It may be materials.
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