Inside Apple’s Multibillion-Dollar Push to Make Chips in the U.S. | WSJ

Apple’s Reshoring Efforts: A Deep Dive into the US Chip Supply Chain

Key Concepts:

• Reshoring: The practice of bringing manufacturing and supply chain operations back to a company’s home country.
• Semiconductors/Chips: Integrated circuits crucial for the function of nearly all modern electronic devices.
• Silicon Wafers: The foundational material upon which chips are built.
• Fabrication (Fab): The process of manufacturing chips from silicon wafers.
• Lithography: A key process in chip manufacturing involving using light to pattern circuits onto wafers. Specifically, Extreme Ultraviolet (EUV) Lithography is the most advanced technique.
• Foundry: A specialized manufacturing facility that produces chips for other companies (e.g., TSMC).
• Supply Chain Diversification: Reducing reliance on a single source or region for critical components.

I. The Strategic Imperative for Reshoring

The video highlights the growing strategic importance of reshoring chip manufacturing to the United States. For decades, the vast majority of the world’s chips have been produced overseas, creating a significant dependency on foreign factories, particularly in Taiwan. Rising geopolitical tensions with China, specifically the threat of annexation of Taiwan, and potential disruptions from tariffs or natural disasters (like earthquakes) have underscored the vulnerability of US companies reliant on this supply chain. Apple, as a major chip buyer, is actively pushing for diversification and localization of its supply chain. As stated by the narrator, this dependency has become “clear… pushing Washington to speed up its effort to bring critical supply chains back home.”

II. Silicon Wafer Production: The Foundation of the Supply Chain

The journey begins with silicon wafers, the base material for chips. GlobalWafers, a Taiwan-based company, operates a facility in the desert Southwest producing these wafers. Silicon is derived from highly purified sand, with significant sources located in North Carolina. The process involves melting raw silicon in a 35-foot-tall machine at 2,500 degrees Fahrenheit to create a “silicon crown.” This is then cooled into a six-foot-long, hundreds-of-pounds heavy ingot. The ingot is subsequently sliced into wafers, polished, and packaged. Currently, GlobalWafers produces 10,000 wafers per month, but achieving the required quality and purity takes “months and months” of refinement. Apple’s role is crucial: they “qualify” the wafers, ensuring they meet the stringent specifications required for chip production, thereby incentivizing foundries to utilize locally-sourced components. Wyatt, a representative from GlobalWafers, explicitly states that “Apple” is their “most demanding customer.”

III. Chip Fabrication: From Wafer to Microchip

Taiwan Semiconductor Manufacturing Company (TSMC), the world’s largest chip maker, takes the silicon wafers and transforms them into functional chips. TSMC’s Arizona facility represents a $165 billion investment and is a cornerstone of Apple’s reshoring strategy. However, the facility is still under construction, with only one fabrication plant currently operational, and two more being built. Currently, TSMC’s Arizona facility produces a smaller volume – over 100,000 wafers per month are produced in Taiwan – and chips that are a generation behind those manufactured in Taiwan. The complexity of scaling up manufacturing is a significant hurdle. As Rose from TSMC explains, chip fabrication involves building “atom-level” structures requiring “complex infrastructure” and “complex equipment.” Each wafer, once patterned with trillions of transistors, costs “tens of thousands of dollars.”

IV. The Role of ASML and Advanced Lithography

A critical component of chip fabrication is lithography, the process of etching circuits onto wafers. ASML, a Dutch company, provides the most advanced lithography machines, specifically Extreme Ultraviolet (EUV) lithography machines. These machines, operating in a Phoenix facility, use lasers fired into molten tin to create a unique wavelength of light, enabling the creation of incredibly small transistors. The process is incredibly precise, requiring nanometer-level accuracy to avoid ruining the entire wafer. These machines are extraordinarily expensive, costing between $100 and $400 million each, and the majority are currently located in Asia. While ASML’s US sales have increased from 5% in 2021 to 12% last year, there’s still significant room for growth.

V. Assembly and Packaging: Bringing it All Together

The final stage of the supply chain involves assembling the chips into finished products. Foxconn, a major Apple manufacturing partner, operates a facility where devices are assembled and chips are installed. This facility, located in Houston, is expanding to include Mac mini production. Currently, Foxconn produces “thousands” of Mac minis per week, with plans to scale up production over time. The workforce is primarily local, with overseas technicians providing initial setup support. Sabih from Foxconn emphasizes the focus on “components, subassemblies, and advanced silicon” as critical for future innovation.

VI. Past Attempts and Current Commitments: A Pattern of Investment and Adjustment

Apple has previously attempted to reshore manufacturing, notably with the Mac Pro in Austin, Texas, in 2013. However, due to soft demand, production was moved back to Asia by 2019. A subsequent commitment to keep production in Austin resulted in tariff exemptions. This illustrates a pattern of investment contingent on favorable policy conditions. The current focus on Mac mini production, a more popular product than the Mac Pro (less than 1 million units sold annually versus 240 million iPhones), suggests a more sustainable approach.

VII. Scale and Future Outlook

The video concludes by emphasizing that the current reshoring efforts represent only the “very first steps” in a long-term process. The scale of the Houston facility, while significant, is a “drop in the bucket” compared to Apple’s overall global manufacturing footprint. The US has a “long way to go to match Asia” in terms of chip production capacity and supply chain resilience.

Data & Statistics:

• Apple Investment: $600 billion over four years in the US.
• TSMC Arizona Investment: $165 billion.
• TSMC Taiwan Production: >100,000 chip wafers per month.
• GlobalWafers Current Production: 10,000 wafers per month.
• ASML US Sales: 12% of total sales in the last year (up from 5% in 2021).
• Mac mini Global Sales: <1 million units per year.
• iPhone Global Sales: ~240 million units per year.
• ASML EUV Machine Cost: $100 - $400 million per machine.

Notable Quotes:

• Wyatt (GlobalWafers): “Apple” is their “most demanding customer.”
• Rose (TSMC): Describing chip fabrication as building “atom-level” structures requiring “complex infrastructure.”
• Sabih (Foxconn): Focusing on “components, subassemblies, and advanced silicon” as critical for future innovation.

This detailed summary provides a comprehensive overview of Apple’s reshoring efforts, highlighting the complexities, challenges, and strategic rationale behind the initiative. It emphasizes the importance of each stage of the supply chain, from silicon wafer production to final assembly, and underscores the significant investment and long-term commitment required to rebuild domestic chip manufacturing capabilities.