TSMC Awaits DRAM Shipments to Complete Apple Chip Packaging
TSMC, the world’s leading semiconductor foundry, is currently holding a significant inventory of Apple chips as it waits for DRAM components from Apple’s suppliers. The delay centers around the integration of DRAM into Apple’s next-generation processors using the advanced Integrated Fan-Out Package on Package (InFO-PoP) technology. This 3D wafer-level fan-out packaging method allows memory to be stacked directly above the system-on-chip (SoC) die, enabling a more compact printed circuit board (PCB) design. By eliminating the need for a separate LPDDR5X memory module that would otherwise occupy over 100 mm² of PCB space, Apple can achieve slimmer device profiles and improved performance.
Apple Races to Secure DRAM for Upcoming iPhone Launch
With less than six weeks remaining before the anticipated launch of the iPhone 18 series and the iPhone Ultra, Apple is expediting its DRAM orders to ensure timely production. The company primarily sources its LPDDR5X memory from Micron, which supplies DRAM for a wide range of Apple devices and is expected to be the main supplier for the upcoming iPhone models. While SK hynix and Samsung are also part of Apple’s DRAM supply chain, Micron remains the preferred partner for this generation.
In an effort to diversify its supply base and potentially reduce costs, Apple has reportedly approached additional manufacturers, including CXMT, seeking volume-based discounts. However, negotiations with CXMT have not resulted in an agreement, as the supplier declined Apple’s proposal.
Tight Production Timeline for iPhone 18 Series
The integration of DRAM into Apple’s processors is a critical step that cannot be bypassed. TSMC’s InFO-PoP process requires DRAM dies to be included in the package before final assembly and shipment. This packaging process typically takes up to two weeks, meaning that any delay in DRAM delivery could impact the production schedule for the new iPhone lineup. As TSMC awaits shipments—particularly from Micron—both companies are working against a tight deadline to ensure that the latest iPhone models are ready for launch.
This situation highlights the complexity of modern semiconductor supply chains and the importance of close coordination between Apple, TSMC, and memory suppliers. As the launch date approaches, all eyes are on the timely delivery of DRAM components to keep Apple’s flagship devices on track.
