Made in America Moves Upstream: High-Purity Quartz, Indium Refining, and the Process Capability Behind Domestic Materials

The reshoring debate has spent four years arguing about fabs. This week, in the space of about 48 hours, the argument moved upstream – to the materials those fabs consume. On October 20, Micron announced an investment in Indium Corporation to restart domestic processing of critical minerals in Rome, New York. On October 21, President Trump told a rally in Greenville, North Carolina that the Department of War “will be investing $1.5 billion dollars to produce cutting-edge semiconductor chips right here in North Carolina,” and Commerce Secretary Howard Lutnick took the stage to describe a new quartz manufacturing facility as “basically the foundation of semiconductors” (The Hill). Market accounts on X carried the $1.5 billion figure within minutes.

For process and packaging engineers, the interesting part is not the dollar figure. It is the admission underneath it: a domestic fab is only as domestic as its inputs, and the inputs are where the purity, contamination and traceability work actually lives. Intel’s own technology leadership made the same point in an October 21 announcement about Fab 62 tool installation and Ohio construction, where CTO Naga Chandrasekaran drew “an important difference between technologies made in America and technologies that are truly American-made” – the difference being the research and process development that turns an idea into a manufacturable, repeatable technology.

Micron and Indium Corporation: the refining gap, named

Micron’s October 20 release is the more technically specific of the two announcements. The company is providing strategic funding for Indium Corporation to expand refining and manufacturing in Rome, New York, restarting domestic processing of critical minerals used in advanced memory, backed by a long-term supply agreement. Micron framed it plainly: the investment “is expected to reduce reliance on concentrated global refining capacity, addressing a growing national security priority.” Chief procurement officer Ben Tessone noted that advanced memory “depends on a reliable supply of critical minerals” and that securing those inputs “requires engagements well beyond our direct suppliers.” Indium Corporation CEO Ross Berntson described the work as expanding “the supply of semiconductor-grade critical minerals.”

The deal sits inside Micron’s previously announced plan to invest up to $3 billion in the U.S. semiconductor supply chain, alongside more than $250 billion in U.S. fab and technology investment through 2035. Market commentary on X and X filled in details the release did not spell out – that the program spans indium, gallium, germanium and tin, and that China accounts for roughly 70% of global indium production. Those figures should be treated as secondary reporting, not company guidance, but the direction is not in dispute: the chokepoint being bought is refining and high-purity materials handling, not wafer starts.

North Carolina: a real money number and an unconfirmed plant

The North Carolina announcement deserves more care than most headlines gave it. Reporting on the rally noted that the $1.5 billion Department of War figure lines up with Wolfspeed’s October 7 announcement of a conditional, 30-year loan commitment of up to $1.5 billion from the Department of War’s Office of Strategic Capital – financing intended to support domestic silicon carbide materials and wide-bandgap power devices, upgrade gallium nitride epitaxy for next-generation communications and electronic warfare systems, advance GaN-on-SiC RF wafer technology, and develop domestic radiation-hardening capability. Wolfspeed itself describes the commitment as conditional, subject to due diligence, definitive agreements, appropriations and other conditions, with warrants for up to 7.5% of fully diluted equity as consideration. A conditional commitment is not a funded line item.

The quartz plant is further out. Lutnick said Sibelco would build a quartz manufacturing operation, but as coverage of The News & Observer’s reporting made clear, Sibelco said it was only aware of public comments about a potential North Carolina project and was awaiting official communication before confirming specifics. That distinction matters for anyone planning capacity around it. What is not in question is why quartz matters: Sibelco’s IOTA high-purity quartz is mined from two ore bodies at Spruce Pine, North Carolina, and is used to make the fused quartz crucibles in which silicon is melted for Czochralski crystal growth, along with the quartzware that lines the wafer process itself. Spruce Pine supplies an estimated 70-90% of the world’s high-purity quartz; Sibelco has committed roughly $200 million to double capacity and has described a further multi-hundred-million-dollar phase, and Hurricane Helene’s 2024 halt of operations there briefly made the single-point-of-failure problem vivid for the entire industry.

Why the materials layer is a process problem, not a paperwork problem

High-purity quartz is specified in parts per billion of metallic impurity for a reason. Impurity content in the crucible migrates into the melt; iron, copper, nickel and sodium alter oxygen precipitation, defect formation and the electrical behaviour of the finished wafer. A crucible is also a consumable with a working life measured in hundreds of hours, so the purity question is not answered once – it is answered on every pull. The same logic extends to every material this week’s announcements touch: refined indium, gallium, germanium and tin for die attach, solder and contact metallurgy; specialty gases and wet chemicals; substrate laminates for RF and power assemblies.

This is where “Made in America” stops being a label and starts being an audit trail. A defense, aerospace, medical or grid customer does not care that a material was refined domestically on paper; they care whether the incoming material has certificates, whether the process that consumes it is controlled, and whether the finished assembly can be traced to a validated run. Concretely, that means:

  • Incoming materials and surface condition drive first-pass yield. Newly re-sourced metals, alloys and components arrive with oxide, drawing compounds and mixed metallurgies. Cleaning and surface-preparation processes – measured ionic residue, controlled rinse and dry, verified cleanliness – decide whether a new domestic source qualifies on first article or fails it.
  • Legacy and long-lifecycle parts stay in the build for decades. The DDR4 and LP4 memory Micron is expanding in Manassas, the SiC and GaN devices in the Wolfspeed program, and the RF/microwave hybrids in aerospace platforms are specified for 15-25 year lifecycles. Keeping them buildable means solderability verification, controlled re-tinning, lead forming and cutting, and reconditioning of parts that have sat in storage or come from alternate channels.
  • Interconnect integrity is a process window, not a machine setting. Wire bonding and die attach on re-sourced or domestically refined materials need characterized bond windows, pull and shear data, and documented thermal and vacuum profiles for attach, cure and reflow – especially where void-free bond lines are a reliability requirement rather than a preference.
  • Traceability is the deliverable. Contamination control records, bath chemistry logs, bond and thermal profiles, and rework history are what turn a domestically sourced assembly into a domestically qualified one. Supply-chain resilience bought with federal money is only as strong as that record.

What this means for domestic electronics manufacturers

Read together, these announcements describe a supply chain being rebuilt one layer below where the headlines are. Capital is available – from CHIPS awards, from the Department of War’s Office of Strategic Capital, from supplier co-investment – but the constraint that decides who actually qualifies is process capability: purity control at the materials stage, contamination control at the assembly stage, and documentation good enough for a defense or medical auditor to sign off. Companies that treat domestic sourcing as a supplier-selection exercise will discover that the qualification burden arrives at their own benches.

Akrivis supports U.S. and North American electronics manufacturers building that capability – cleaning and contamination control, PCB/SMT and microassembly cleaning, vapor degreasing, component lead forming and cutting, legacy component reconditioning and tinning, solderability, wire bonding, and thermal and vacuum process equipment, backed by North American application support. Our application engineers work with semiconductor packaging teams, EMS providers, RF/microwave and hybrid microelectronics groups, and aerospace and defense electronics suppliers on the process questions that decide whether a re-sourced material or a newly domestic component becomes a qualified, field-reliable product.

Request an application review to walk through your cleaning, solderability, bonding, reconditioning or thermal process challenges with an Akrivis application engineer. Visit /contact/ to start.

Sources