The Bromine Chokepoint: Semiconductor Memory Risks (warontherocks.com)

• Hydrogen bromide gas is a vital etching chemical for memory chips.
• Supply concentration in the Middle East poses a silent threat to fabs.
• Geopolitical volatility creates systemic risks for semiconductor output.

"The recent conflict in the Middle East has revealed a critical dependency in the semiconductor memory supply chain. While markets focus on helium, the supply of semiconductor-grade hydrogen bromide gas—essential for etching transistors in South Korean fabs—is at high risk. Any disruption to bromine production could effectively halt the manufacturing of essential memory chips, creating a hidden bottleneck that exceeds the impact of traditional logistics disruptions. This vulnerability highlights the lack of diversification in chemical precursor sourcing for frontier chip manufacturing."