Apple, Qualcomm Face Glass Cloth Shortage

Major technology companies including Apple and Qualcomm are facing heightened concern over tightening supplies of a crucial material from Japan that forms the backbone of advanced chip production.

As reported by Nikkei Asia, the material in question is a highly specialised glass cloth fiber used inside printed circuit boards and chip substrates, and with demand booming from AI infrastructure, supplies are stretched thin.

Glass cloth might not be a term familiar to everyday smartphone users, yet it plays a vital role in modern electronics. This fine woven fabric of glass fibers is used deep inside the layers of chip substrates and printed circuit boards, giving stability under heat and supporting high-speed data transmission in chips that power phones, tablets, and AI accelerators.

Because only a handful of suppliers can produce glass cloth that meets the exacting standards required by cutting-edge chips, competition for this material has intensified sharply. Nvidia, Google, Amazon, and others are all vying for access to a resource that is inherently limited in capacity. This has left Apple and Qualcomm scrambling to secure enough material to meet their production needs.

Industry insiders explain that producing high-end glass cloth is extremely difficult. Each fiber must be thinner than a human hair, perfectly uniform and free of any defects because once it is embedded inside the substrate of a chip, it cannot be repaired or replaced. These quality requirements make it hard for new or smaller suppliers to step in quickly.

In response to the supply squeeze, Apple has taken a range of unusual steps for a company of its size. The tech giant is said to have dispatched employees to Japan to work with material makers and secure commitments directly from supply partners.

There have also been reports that Apple has reached out to government officials in Tokyo to explore ways to stabilise the flow of material for its 2026 product lineup.