Apple warns that supply constraints due to “legacy node” chip production will be worse in Q4 than in Q3 and will likely affect sales of the iPhone and iPad
Context & Ripple Effects
This is the second act of a warning that began in April, when Tim Cook said shortages in "legacy node" chips — built on older manufacturing processes rather than cutting-edge nodes — would hit the Mac and iPad lineups first (Cook's Q3 supply warning), after reporting earlier that spring showed some MacBook and iPad production postponed and iPhone components running tight. The new wrinkle is that the constraint is no longer confined to Macs and iPads: it is spreading to the iPhone just as Apple enters its highest-volume quarter.
First-order effects
- iPhone and iPad output is directly capped through the September quarter and into the holiday build, meaning demand Apple can record but cannot ship — the same dynamic already visible when some MacBooks and iPads had production pushed back (postponed MacBook and iPad production).
Second-order effects
- Foundries making legacy-node chips gain pricing power against Apple, since the bottleneck sits in mature process capacity that cannot be added quickly, while rival device makers competing for the same older-node wafers face identical caps on their own holiday inventories.
Third-order effects
- The pattern points toward structural exposure rather than a one-quarter glitch: by December the shortage forces Apple to cut projected iPhone 13 production targets by up to 10M units and tell suppliers the gap may not be recovered in 2022, foreshadowing the up-to-$8B quarterly revenue hit Bloomberg later ties to Apple's concentration of assembly, testing, and packaging in China — pushing the company toward diversifying where devices are built.
The trend: The chip shortage is migrating from niche products to flagship volume lines, exposing how dependent consumer-electronics giants are on legacy-node foundry capacity and concentrated Asian assembly.