Fab Floor Friday
Four stories this week, and the biggest one is about a man rather than a film — but it lands on the fab floor all the same. Jensen Huang resigned from Nvidia, Applied Materials closed the largest quarter in the equipment industry’s history, Infineon coaxed silicon tools into building silicon carbide devices on 300 mm wafers, and Japan’s Mitsui Chemicals is paying $11.9 billion for a photoresist house. Same materials physics underneath, four different ledgers.
1. Jensen Huang resigns — and the scandal reaches straight into export control
What happened: Nvidia announced on November 12 that Jensen Huang had resigned as president, chief executive and board member, effective immediately, after 33 years, following reports of affairs including with a woman suspected of being a Chinese intelligence asset. CFO Colette Kress takes over as interim CEO. The stock fell as much as 13 percent at Thursday’s open before recovering part of the loss, and Huang has agreed to appear before Congress, whose committees are already seeking records on chip exports and the Megaspeed chip-smuggling investigation, with a closed-door House briefing set for November 18.
The fab floor read: look past the tabloid layer and this is a policy story. For two years, enforcement of the chip and equipment export controls has run on bureaucratic inertia: senior officials resisting tougher action, smuggling cases moving slowly, and a customer-financing web — more than a hundred investments in companies that buy Nvidia’s own chips — drawing little scrutiny. A Congress looking to prove its seriousness now has both a crisis and a mandate, and the machinery of subpoenas and record preservation requests is already moving. For fabs and toolmakers, the near-term risk is not who runs Nvidia; it is what an aggressive enforcement posture does to license approvals, China revenue, and the gray-market flows that have quietly absorbed a lot of advanced silicon. The films don’t care who the CEO is. The export licenses do.
2. Applied Materials’ record quarter is a deposition story wearing an earnings outfit
What happened: Applied Materials closed fiscal 2026 with record quarterly revenue of $10.41 billion, up 53 percent year over year, and record annual revenue of $34.45 billion, up 21 percent. Its Semiconductor Systems segment pulled in about $8 billion as AI-driven capital spending accelerated, with DRAM and flash memory taking a larger share of the mix, and the company guided the coming quarter to roughly $11.1 billion.
The fab floor read: strip the earnings-call language and this is an order book for films. Every AI accelerator is a stack of them: the gate stack, the spacers, the barriers and liners that keep copper where copper should be, and then the packaging layers — TSV liners, hybrid-bonding surfaces, redistribution dielectrics — that turn good dies into good accelerators. When memory takes a larger share of tool revenue, that is capacitor dielectrics and electrode films, the highest-aspect-ratio deposition in the industry. The equipment makers’ order book remains the most honest leading indicator in this business: fabs buy deposition tools two years before the chips that need them ship, and right now they are buying at a record pace.
3. Infineon makes silicon carbide behave on 300 mm — using silicon’s own toolbox
What happened: Infineon reported an industry first: functional silicon carbide power devices built on 300 mm wafers at its Villach fab in Austria, using the same processing equipment the site already runs for silicon. A 300 mm wafer fits 2.3 times as many chips as the 200 mm wafers SiC has traditionally used.
The fab floor read: silicon carbide is a hostile substrate. It is hard, it is expensive, and its high-temperature process steps have always forced dedicated tool sets — which is one reason SiC never rode silicon’s cost curve down. The milestone here is not the wafer diameter alone; it is that the film stack — gate oxide, interlayer dielectrics, metallization — works on standard silicon equipment. The gate-oxide/SiC interface is where SiC yield goes to die, and making that interface reproducible on a 300 mm silicon line is what turns a laboratory demonstration into a cost story. If the defect densities hold, SiC power devices for EVs and AI data-center power supplies inherit the same scaling economics silicon enjoyed for decades. Watch the defect numbers, not the press release.
4. Mitsui pays $11.9 billion for JSR: the materials layer starts to consolidate
What happened: Mitsui Chemicals confirmed it will acquire JSR in a deal valued at about ¥1.84 trillion (roughly $11.9 billion), bringing JSR’s photoresist and advanced materials businesses under one roof with Mitsui’s.
The fab floor read: photoresist is the most chemistry-dense film in the fab — a film whose only job is to be perfect for a few minutes and then vanish — and the EUV-era versions of it are made by a very short list of suppliers. When the materials layer consolidates, fabs lose an independent alternative every time a competitor is absorbed, and the industry that already worries about single points of failure in lithography gains another concentrated supplier one step downstream. The films that define every feature on every wafer are now owned by fewer companies. That is worth watching more closely than most merger news.
That’s the floor for this week. The headlines moved on Capitol Hill, on earnings calls and in Munich; the films decided most of it.