Graphite is Helping to Bring Computer Chip Manufacturing Back to the U.S.
You don’t see them, you definitely can’t hear them (at least individually), and it’s doubtful you can smell them, but computer chips are in nearly everything now. Thank a computer chip for making your car's braking system responsive to road conditions, or for making it easy to pick up your phone and video call your cousin in Ireland. They’re in pacemakers and, of course, they proliferate in AI server farms processing millions of requests a second. For decades, the majority of those chips were made overseas, primarily in Taiwan and South Korea. That's starting, slowly, to change, and graphite semiconductor manufacturing is part of what's making the shift to on-shoring the production of the ubiquitous computer chip possible.
The CHIPS and Science Act, signed by President Biden in 2022, committed more than $50 billion in federal funding to rebuild American chip production. CHIPS Act graphite may not be a phrase that's made headlines, but the material is woven throughout the manufacturing process that the law is working to bring back to US shores. Since passage, companies in the semiconductor industry have announced many projects across the country and hundreds of billions in private investment. For instance, the Taiwanese conglomerate TSMC is building three fabs in Phoenix. Micron is investing over $100 billion in New York and Idaho. Intel is expanding in Ohio and Arizona. The first of these facilities began volume production in 2025. The buildout is happening fast.
What Graphite Actually Does in a Chip Factory
Here’s the part of the story that Semco engineers really know about. While it’s true that graphite in chip production isn't visible in the final product, it is present at almost every critical stage of manufacturing. Here's what that looks like in plain terms:
Making a chip starts with silicon — but silicon has to be grown into a perfect crystal first. That happens inside a furnace at temperatures exceeding 2,500°F, and the crucibles and components that hold the molten silicon are made from high-purity graphite. No other material handles that combination of heat and chemical stability as reliably as graphite does.
Once silicon wafers are cut and ready for processing, they move through deposition chambers where thin films of material are applied at the atomic level. The fixtures, susceptors, and carriers that hold wafers in place during those processes are made of graphite. These graphite components for chips, precisely machined to hold wafer geometry without introducing contamination, have to meet extremely tight tolerances. A component that's slightly off affects every chip on every wafer it touches.
Heat management runs through the entire process. Graphite's thermal conductivity distributes heat evenly and predictably, which is why it shows up in other places on a chip manufacturing line like heating elements and thermal shields. Consistency of temperature, across thousands of production cycles, is what saves a usable chip from becoming scrap.
Why Domestic Supply Matters Now
For years, semiconductor manufacturers sourcing graphite components for chips could absorb long lead times from overseas suppliers. At that time, production schedules were more predictable than they are now and manufacturers could plan around the wait. Those conditions do not hold today. As new domestic production ramps up, producers need component suppliers who can respond quickly and, equally as important, hold tight tolerances and maintain reliable inventory. This last part is particularly important, as all graphite companies must deal with the uncertainty that comes with international shipping and geopolitical supply chain risk.
CHIPS Act graphite sourcing is part of a broader push for supply chain resilience, which of course is the same logic that's driving chip production back to the U.S. in the first place. Anyone thinking of building a world-class semiconductor fabrication facility on American soil and then depending on overseas suppliers for components that keep it running defeats part of the purpose.
Semco’s Role
Semco Carbon has been producing precision-machined graphite components for semiconductor manufacturing since the industry's early decades of expansion. Our strategically stocked inventory, fast-turn machining capability, and material expertise is well known to our customers. If a client working with us is standing up new manufacturing lines or maintaining existing ones, they won't have to wait weeks for the components that keep their equipment running.
Graphite semiconductor manufacturing is growing in the U.S. for the first time in a generation. Semco has been here all along, and we're ready for what comes next.