TSMC and Amkor just signed a 10-year deal to build advanced packaging capacity in Arizona. The CHIPS Act is funding fabs across the country. But the real challenge isn’t building the facility — it’s building the process infrastructure to produce qualified product at scale.
Two developments in the past two weeks highlight both the momentum and the unresolved challenges behind U.S. advanced semiconductor packaging — a layer of the supply chain that most press releases treat as a footnote but that senior engineers know is the hardest part to get right.
TSMC and Amkor: A 10-Year bet on Arizona Advanced Packaging
On June 16, TSMC and Amkor Technology announced a 10-year strategic partnership to expand advanced semiconductor packaging and testing capabilities in Arizona. Under the agreement, TSMC will procure advanced packaging and testing services from Amkor’s planned Peoria campus, co-locating with TSMC’s existing Phoenix fabrication facilities that are already producing 4nm chips and targeting 2nm production by 2029.
The deal complements TSMC’s planned $165 billion U.S. investment and Amkor’s $7 billion Arizona expansion, which is expected to create approximately 3,000 jobs. As Amkor CEO Kevin Engel put it: “This Agreement marks an important next step in our partnership with TSMC as we accelerate advanced semiconductor manufacturing in the U.S. to provide our customers a full U.S. supply chain from advanced silicon manufacturing to tested packaged devices.”
Source: X.com / @marketsday | Amkor Press Release | TSMC Press Release
X.com commentary: Analysts and supply-chain observers have noted that TSMC’s Arizona plant will not implement CoWoS (Chip-on-Wafer-on-Substrate) advanced packaging until 2028 or 2029 at the earliest, with packaging currently shipped back to Taiwan — making the Amkor partnership a critical bridge for domestic end-to-end supply.
The Reshoring Readiness Gap: 79% Are Reshoring, Only 34% Are Ready
A ManufacturingTomorrow survey of 250 U.S. manufacturers (companies with 1,000+ employees), conducted by Atomik Research in March 2026, reveals a stark readiness gap:
- 79% of U.S. manufacturers have already brought outsourced production in-house or are actively doing so.
- Only 34% say their in-house production capacity is fully adequate to absorb supply chain disruptions.
- 53% say capacity is only partially adequate; 11% would struggle significantly.
- 92% reported operational disruption from tariff and trade policy shifts in the past year.
The real barriers aren’t primarily capital — 73% increased equipment budgets year-over-year. The harder constraints are system integration and implementation time (22%), skilled staff shortages (22%), and the multi-quarter reality of fitting new equipment into existing ERP, MES, and quality frameworks.
Source: X.com / @ManufTmrw | ManufacturingTomorrow, June 16, 2026
SEMI’s 2026 Policy Strategy: The Full Ecosystem Matters
SEMI’s 2026 U.S. Policy Strategy paper, published in January, frames the challenge broadly: total annual U.S. fab spending is projected to approach $50 billion by 2028–2030, but the ecosystem around those fabs — supply chain resilience, advanced packaging, photonics, testing, workforce, and environmental compliance — requires equal attention.
SEMI specifically calls for expanded funding for advanced packaging, photonics, and testing; secure material sourcing from trusted partners; and a semiconductor-specific cybersecurity framework. The paper also highlights that the CHIPS Advanced Manufacturing Investment Credit (AMIC) must be extended beyond 2026 and expanded to upstream suppliers — including design, materials, components, and packaging.
The 2026 USA Reshoring Survey, conducted by SEMI in collaboration with the Reshoring Initiative, closes June 30, 2026. SEMI is inviting OEMs and contract manufacturers to participate and make their voice heard on competitive U.S. manufacturing policy.
Source: X.com / @SEMIconex | SEMI 2026 U.S. Policy Strategy (PDF)
Why Advanced Packaging Is the Hardest Layer to Reshore
The TSMC/Amkor deal and the SEMI policy paper both point to the same underlying reality: advanced packaging is the layer where U.S. domestic capability is most constrained. As one X.com analyst put it, advanced packaging reshoring is a 2028–2030 fundamental shift, not a 2026 earnings driver.
For senior engineers and manufacturing teams, the challenge is concrete:
- Contamination control at the packaging level: Advanced packaging — 2.5D, 3D-IC, chiplet integration, hybrid bonding — demands cleanliness standards that exceed traditional SMT assembly. Organic residues, ionic contamination, and particulate matter at the die-attach or bonding interface cause yield loss and long-term reliability failures. This is particularly acute for defense, aerospace, and medical applications where field failures are unacceptable.
- CoWoS and heterogeneous integration: TSMC’s CoWoS technology, Intel’s Foveros, and similar advanced packaging platforms require precise thermal profiles, controlled atmospheres, and contamination-free surfaces. Bringing these processes domestic means building not just the capital equipment line, but the process knowledge to operate it at yield.
- Wire bonding and die attach: The interconnection layer between die and package substrate is a critical reliability bottleneck. Gold and copper wire bonding, silver sintering, and advanced die-attach materials each require controlled process environments and validated cleaning steps.
- Testing and qualification: Advanced packaged devices require new test methodologies, burn-in protocols, and qualification standards. Domestic OSAT (Outsourced Semiconductor Assembly and Test) capability — like Amkor’s Arizona campus — is essential, but the test infrastructure must scale in parallel with packaging capacity.
- Legacy and defense packaging: Many defense and aerospace programs use packaging technologies that predate the advanced-node era — ceramic packages, hermetic sealing, flat packs, and leadless chip carriers. These still require domestic process capability for lead forming, tinning, solderability assessment, and reconditioning.
- Workforce and integration: The ManufacturingTomorrow survey makes clear that the bottleneck is not equipment procurement alone — it’s the months-long process of integrating new equipment into existing quality frameworks, training operators, and establishing process control. This is true for packaging lines just as it is for wafer fabs.
The gap between “we have an OSAT facility” and “we can reliably package advanced die to specification” is filled by process engineering — and that’s where domestic manufacturing capability must mature alongside the capital investment.
How Akrivis Supports Domestic Packaging and Electronics Manufacturing
Akrivis works alongside U.S. and North American electronics manufacturers to strengthen the process infrastructure that makes domestic production credible and reliable. Our application focus includes:
- Cleaning and contamination control — vapor degreasing, aqueous cleaning, and process validation for PCBs, hybrid microcircuits, semiconductor packages, and advanced substrates
- PCB/SMT and microassembly cleaning — post-reflow, post-underfill, and pre-coating cleaning workflows that meet IPC, MIL-STD, and customer-specific cleanliness standards
- Component lead forming and cutting — preparing long-lifecycle and legacy defense components for packaging and assembly
- Legacy component reconditioning — tinning, solderability restoration, and thermal processing for obsolete and last-time-buy parts
- Wire bonding support — process equipment and application support for microelectronic interconnection at scale
- Thermal and vacuum process equipment — soldering, outgassing, controlled-atmosphere processing, and thermal cycling for qualified production
- North American application support — engineering teams that work directly with domestic manufacturers to solve packaging and assembly process challenges
We don’t claim that Akrivis equipment is Made in USA or Buy American compliant — those claims require independent verification. What we do is support the manufacturers who are building domestic electronics packaging and assembly capability, ensuring their processes are clean, reliable, and qualified to meet the demands of defense, aerospace, medical, and high-reliability industrial programs.
The Bottom Line
The TSMC/Amkor partnership, the SEMI policy push, and the reshoring readiness data all point to the same conclusion: the U.S. is investing heavily in semiconductor manufacturing, but the advanced packaging and process infrastructure layer remains the hardest to close. Capital investment builds the facility; process engineering builds the capability.
For engineering teams navigating this transition — whether you’re scaling advanced packaging lines, qualifying defense-grade assembly processes, or integrating reshored production into existing quality frameworks — the question isn’t just “where are the fabs?” It’s “do we have the process capability to package, clean, bond, and test to specification, on schedule, with full traceability?”
If your team is evaluating domestic packaging process improvements — whether for new CHIPS Act-funded production, defense program requirements, or supply chain resilience — contact Akrivis for an application review. Our engineering team can help identify process bottlenecks and recommend solutions tailored to your specific manufacturing requirements.