---
title: "onsemi scraps its $2 billion Czech fab as quarterly capex shrinks to $19 million"
description: "onsemi and the Czech ministry killed the $2 billion Roznov fab on November 6, with quarterly capital spending already down to $19 million. The next day the chief executive re-anchored silicon carbide on Korea, and Wolfspeed's own quarter shows the wafer market onsemi walked away from."
publisher: "The Inference"
section: "Chips"
published: 2026-11-07T14:07:15.312Z
modified: 2026-11-07T14:07:15.312Z
canonical: https://theinference.org/article/onsemi-scraps-its-2-billion-czech-fab-as-quarterly-capex-shrinks-to-19-million
language: en
keywords: "ON Semiconductor, Silicon Carbide, Capex, Semiconductors, M&A, Czech Republic"
---

# onsemi scraps its $2 billion Czech fab as quarterly capex shrinks to $19 million

> onsemi and the Czech ministry killed the $2 billion Roznov fab on November 6, with quarterly capital spending already down to $19 million. The next day the chief executive re-anchored silicon carbide on Korea, and Wolfspeed's own quarter shows the wafer market onsemi walked away from.

## The promise lasted 29 months

On November 6, [onsemi](https://theinference.org/markets/companies/onsemi) and the Czech Industry Ministry agreed not to proceed with the silicon carbide (SiC) expansion at its Roznov pod Radhostem site, a project initially valued at [as much as $2 billion](https://www.bloomberg.com/news/articles/2026-11-06/onsemi-scraps-plan-for-2-billion-expansion-in-czech-republic) [1]. Announced in June 2024, it was billed as the biggest single foreign investment in the Czech Republic since the 1993 split of Czechoslovakia, with jobs at the site set to rise from 1,700 to 3,000 [3]. The plan covered end-to-end SiC production, from crystal growth to finished power devices [2]. The promise lasted 29 months [2].

## Both sides blame the market

The company and the ministry cited [evolving market dynamics and project economics](https://finance.yahoo.com/technology/articles/onsemi-czech-ministry-cancel-2-211736822.html) [2]. First Deputy Prime Minister and Industry Minister Karel Havlíček tied the decision to current conditions across the global semiconductor market [2]. Existing silicon and SiC operations at Roznov stay open, and onsemi says it will keep hiring and investing there and at its Brno development center [2].

![onsemi's site at Roznov pod Radhostem in the Czech Republic](https://storage.googleapis.com/theinference-public/img/c585e407ce6124f7.jpg)

*The Roznov pod Radhostem site, where existing silicon and SiC operations stay open after onsemi and the Czech ministry cancelled the $2 billion expansion. (Hugo, CC BY 4.0)*

## The cash went to deals instead

The cancellation lands four days after onsemi agreed to buy Ferric, an integrated voltage regulator startup, for [$600 million in cash plus up to $175 million in revenue milestones](https://finance.yahoo.com/technology/ai/articles/onsemi-acquire-ferric-establishing-leadership-210500168.html), a deal that lifted its 2030 AI data center revenue target above $3 billion [4]. In October it moved the [Synaptics](https://theinference.org/markets/companies/synaptics) acquisition to an all-cash $123 per share, roughly $5.7 billion, backed by a [committed $2.45 billion Morgan Stanley term loan](https://finance.yahoo.com/news/onsemi-revises-synaptics-acquisition-cash-111712324.html) [5].

The Inference reported on November 3 that [the buyback had been cut to $19.9 million](https://theinference.org/article/onsemi-buys-ferric-for-600-million-lines-up-2-45-billion-for-synaptics-and-cuts-buybacks-to-19-9-million) [6]. Meanwhile the fab budget has nearly vanished: capital spending was $19 million in Q3 2026, down 95% from the $385 million spent in Q4 2023 [10].

*Chart: **onsemi's capital spending is down 95% from Q4 2023** Line chart of onsemi quarterly capital expenditure from Q4 2023 to Q3 2026, falling from $385 million to $19 million*

*onsemi quarterly capital expenditure, USD billions, from its SEC filings [10]*

## The market it left was already shrinking

[Wolfspeed](https://theinference.org/markets/companies/wolfspeed)'s own quarter posted the numbers that back the exit: [substrate revenue fell 41% year over year to $38.2 million](https://www.vlsi.kr/en/wolfspeed-q1-fy2027-flash-en/) while its own device line fell 11%, and non-GAAP gross margin stood at -13% [7]. onsemi's quarter, by contrast, brought $1.72 billion of revenue at a 41.4% GAAP gross margin [7]. A diversified power franchise can walk away from a bet a leveraged pure-play cannot.

*Chart: **Deals get $6.3 billion while the $2 billion fab is scrapped** Columns comparing the Synaptics acquisition at $5.7 billion, the scrapped Czech fab at $2 billion, the Ferric acquisition at $600 million and onsemi's Q3 2026 capex at $19 million*

*Committed deal values and quarterly capital spending, USD millions [1][4][5][10]*

## The day-after answer runs through Korea and the data center

The next day, November 7, chief executive Hassane El-Khoury told ChosunBiz that the Bucheon plant in Korea "plays a pivotal role in Onsemi's long-term SiC strategy"; a 2023 expansion there of about 1.4 trillion won targets more than 1 million 200mm wafers a year [8]. He projected [AI data center revenue would more than double this year](https://biz.chosun.com/en/en-it/2026/11/07/YTWLKMSCHFHCXNNOS54O7B6SSY/) [8]. Analysts spent earnings week cutting targets, [Evercore](https://theinference.org/markets/companies/evercore) to $90 from $137 and [Goldman](https://theinference.org/markets/companies/goldman-sachs) to $85 from $95, yet the average target still sits at $96.16 against Friday's close of $63.31 [9].

## What decides it

Company guidance puts [Q4 revenue at $1.72 billion to $1.82 billion](https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=0001097864) [9]. The tell is not onsemi's device line; it is whether substrate demand recovers at all, measured next in Wolfspeed's materials line and Infineon's ordering. Infineon extended its Wolfspeed wafer agreement to 200mm on October 15, so the bears are not unanimous [7].

Automotive was 51.4% of onsemi's revenue mix [9]; if AI data center power keeps compounding while that book stalls, the scrapped fab becomes the cheapest decision El-Khoury ever made. If AI demand also stalls, he will have killed the fab and levered the balance sheet in the same quarter.

## Takeaway

onsemi walked away from a $2 billion Czech SiC fab with quarterly capex down 95% to $19 million, recycling the cash into Ferric and Synaptics and re-anchoring silicon carbide on its Bucheon plant in Korea as Wolfspeed's 41% substrate collapse validates the exit; Q4 guidance and Wolfspeed's next materials print tell whether the pivot holds.

## Sources

1. [Bloomberg, Onsemi (ON) Scraps Plan for $2 Billion Expansion in Czech Republic, 6 November 2026](https://www.bloomberg.com/news/articles/2026-11-06/onsemi-scraps-plan-for-2-billion-expansion-in-czech-republic)
2. [Investing.com via Yahoo Finance, Onsemi and Czech ministry cancel $2 billion chip facility expansion, 6 November 2026](https://finance.yahoo.com/technology/articles/onsemi-czech-ministry-cancel-2-211736822.html)
3. [Associated Press via NEWS10, US chipmaker onsemi will invest $2 billion in a chip production facility in the Czech Republic, 19 June 2024](https://www.news10.com/business/ap-business/ap-us-chipmaker-onsemi-will-invest-2-billion-in-a-chip-production-facility-in-the-czech-republic/)
4. [onsemi press release via Yahoo Finance, onsemi to Acquire Ferric, Establishing Leadership in Power Delivery for Next-Generation AI Processors, 2 November 2026](https://finance.yahoo.com/technology/ai/articles/onsemi-acquire-ferric-establishing-leadership-210500168.html)
5. [Quartz via Yahoo Finance, onsemi revises Synaptics acquisition to all-cash $5.7B deal, 2 October 2026](https://finance.yahoo.com/news/onsemi-revises-synaptics-acquisition-cash-111712324.html)
6. [The Inference, onsemi buys Ferric for $600 million, lines up $2.45 billion for Synaptics and cuts buybacks to $19.9 million, 3 November 2026](https://theinference.org/article/onsemi-buys-ferric-for-600-million-lines-up-2-45-billion-for-synaptics-and-cuts-buybacks-to-19-9-million)
7. [VLSI Korea, Wolfspeed Materials Revenue Falls 41% as Non-GAAP Gross Margin Narrows to -13%, 6 November 2026](https://www.vlsi.kr/en/wolfspeed-q1-fy2027-flash-en/)
8. [ChosunBiz, Onsemi boosts Korea SiC capacity as AI drives power efficiency race, 7 November 2026](https://biz.chosun.com/en/en-it/2026/11/07/YTWLKMSCHFHCXNNOS54O7B6SSY/)
9. [MarketScreener/MT Newswires, Truist Adjusts Price Target on ON Semiconductor to $76 From $75, Maintains Hold Rating, 3 November 2026](https://www.marketscreener.com/news/truist-adjusts-price-target-on-on-semiconductor-to-76-from-75-maintains-hold-rating-ce785fd9d18cf72c)
10. [onsemi, quarterly figures from its SEC filings, retrieved 7 November 2026](https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=0001097864)


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onsemi scraps its $2 billion Czech fab as quarterly capex shrinks to $19 million — The Inference. Canonical: https://theinference.org/article/onsemi-scraps-its-2-billion-czech-fab-as-quarterly-capex-shrinks-to-19-million