The technology sector may soon face a new supply chain challenge: the production of processor chips could hit a bottleneck at the final stage due to a shortage of a material most consumers have never even heard of.

A Complex Manufacturing Chain

Building a finished computer is the result of the combined efforts of not just one, but thousands of companies involved at various stages. The process includes suppliers of silicon dioxide for semiconductors, manufacturers of plastic coatings for specialized screws, and many others. While some suppliers can be replaced, according to one report, there is a particular material essential for making processors that cannot be substituted.

The Critical Role of Glass Fiber Film

This material is a thin glass fiber film known as T-Glass, which is used in the production of processors and other electronic devices. T-Glass serves an important mechanical function—it prevents the printed circuit board from warping. Even minor deformations can cause chipsets to fail, for example, due to cracks in solder joints or disruptions in electrical contacts. Such damage can occur as a result of external pressure and heat, which are almost inevitable during operation. According to the report, T-Glass is used in the substrate, not in the semiconductor itself.

Market Monopoly and Potential Consequences

The report states that the production of T-Glass is almost entirely controlled by a single company—Nitto Boseki. High demand has already led to price increases, and manufacturing capacity cannot be ramped up quickly. It remains unclear how this will affect the cost of end products, but there is a real risk of significant supply disruptions. Concerns are so great that major industry players, such as Apple and T-Glass manufacturers, have at least considered the possibility of direct negotiations to address the issue.