TSMC Is Sitting on $1 Billion in iPhone 18 Pro Chips It Cannot Complete

TSMC has $1 billion worth of finished Apple A20 Pro chips built on its 2nm process node that cannot be completed due to a shortage of LPDDR5X mobile memory chips needed for the wafer-level multi-chip module packaging, which integrates processor and memory simultaneously. This shortage stems from AI hyperscalers consuming the memory supply, delaying Apple's iPhone 18 Pro production despite strong fabrication yields.

This Wire brief sits within Fusion42's coverage of Semiconductors, and 2 sources have reported it between 6 Aug 2026 and 7 Aug 2026.