Apple and its suppliers are scrambling to secure enough DRAM (mobile memory chips) ahead of the expected September 2026 launches of the iPhone 18 series and the foldable iPhone Ultra, according to semiconductor analyst Tim Culpan’s exclusive reporting for Culpium.
With under six weeks to the anticipated debut, assemblers are rushing shipments of DRAM. Apple primarily sources from Micron, with additional supply from SK Hynix and Samsung. Severe shortages due to RAMageddon have left processor wafers sitting idle, awaiting packaging—creating pressure to avoid launch shortages.
The issue stems from Apple’s A20 Pro chips (built on TSMC’s 2nm process), which use Wafer-Level Multi-Chip Module (WMCM) packaging that integrates the processor and DRAM at the wafer level. This means DRAM must be available for packaging; unfinished dies cannot simply be stockpiled and completed later. Reports indicate TSMC is holding roughly $1 billion worth of unpackaged Apple processors delayed by the missing memory.
DRAM has been tight for months, driven in large part by memory makers prioritizing higher-margin chips for AI data centers over consumer devices. This has already affected other Apple products (such as certain Macs) with longer wait times. Apple and its partners (including assemblers like Foxconn) expect to meet initial launch demand, but retail stock could deplete quickly and online preorder wait times may stretch afterward. The foldable iPhone Ultra, with its more complex design and lower planned volumes (historically projected in the low millions for the second half of the year in related analyst notes), is viewed as particularly vulnerable to limited availability.
Culpan’s sources indicate Apple plans roughly 200 million combined units across the iPhone 18, 18 Pro, and Ultra over the product cycle, with the Ultra representing under 10%.
This memory constraint adds to broader industry dynamics of rising memory costs and competing demand from AI infrastructure, which have already influenced pricing discussions and production priorities for Apple hardware.
MacDailyNews Take: Buyers interested in the new Pro models or the Ultra at launch would be advised to pre-order very, very promptly!
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