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Intel’s 18A manufacturing process faced a significant customer-validation setback in September 2024, when Reuters reported that Broadcom was disappointed by wafers produced using the technology. The report did not establish that 18A was defective, permanently stalled, or formally rejected by Broadcom. Intel disputed the characterization, saying 18A was “powered on, healthy and yielding well.”
The later picture is also important: Intel’s 2025 annual report says 18A entered high-volume manufacturing in late 2025. The 2024 episode is therefore best understood as a warning about process and customer-readiness at that point in development—not proof that Intel’s advanced node could never reach production.
What Reuters reported about Broadcom’s 18A evaluation
On September 4, 2024, Reuters reported, citing people familiar with the matter, that Broadcom had tested wafers manufactured using Intel’s 18A process. According to those sources, Broadcom was disappointed with the results and concluded that the process was not yet ready for high-volume production for its prospective needs.
That is materially narrower than saying “Intel failed a test.” The public reporting did not identify a standardized test, publish a yield figure, or establish that Broadcom had formally rejected Intel Foundry. Broadcom said it was still evaluating Intel Foundry’s products and services and had not completed its evaluation.
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Reuters’ originally reported account and a contemporary Engadget summary both described a reported setback based on unnamed sources—not a public announcement of a failed contract.
What Intel 18A actually is
Intel 18A is a semiconductor manufacturing process, or node. It is not a processor, graphics card, or single commercial chip. A process node defines the technologies and manufacturing rules used to build many different chip designs.
Intel’s 18A program combines two major technologies:
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- PowerVia: a backside power-delivery approach that moves parts of the power network to the rear of the wafer, with the goal of improving power distribution and allowing more efficient use of the front side for signal routing.
Intel presented 18A as the culmination of its “five nodes in four years” process roadmap and as a foundation for both Intel products and external foundry customers. Its public progress update said the company was targeting manufacturing readiness and high-volume production in 2025. Intel has also discussed the process, its ecosystem, and customer plans in its Foundry roadmap materials.
What “not ready for high-volume production” can mean
A foundry customer does not qualify a process solely by asking whether a few test chips work. Moving from test wafers to dependable commercial production involves several overlapping questions:
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- Yield: How many dies on a wafer work correctly, and how consistent is that result across wafers and lots?
- Defect density: Are manufacturing defects low enough to produce an economically acceptable number of usable chips?
- Electrical performance: Do the transistors, memory cells, and other structures meet the customer’s speed, power, and reliability targets?
- Process consistency: Can the same results be reproduced across production equipment and over time?
- Design enablement: Can the customer’s design be implemented using a mature process-design kit, libraries, electronic-design-automation tools, and intellectual-property blocks?
- Economics and scale: Can the process produce enough acceptable dies at a predictable cost for a high-volume product?
The exact criteria Broadcom considered inadequate were not publicly disclosed. Its reported disappointment could have involved wafer yield, electrical results, design integration, production economics, or a combination of factors. It is also possible—but not established by the public record—that a customer-specific design or design-enablement issue contributed to the outcome.
Could Intel’s statement and Broadcom’s concerns both be true?
Yes. Intel said 18A was “powered on, healthy and yielding well,” while Reuters’ sources said Broadcom found the results unsuitable for its high-volume requirements. Those statements may reflect different designs, test structures, production thresholds, or definitions of yield.
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One free scan finds every outdated or missing driver and matches the right update for your exact hardware.Free scan · exact hardware matchFor example, Intel could have been discussing internal test chips or its own product designs, while Broadcom was assessing whether a particular outside design could be manufactured reliably and profitably. A process can show promising internal results and still lack the full design-enablement maturity that an external customer needs.
“Yield” itself is not always a single number. Raw wafer yield, functional-die yield, and economically usable yield can produce different conclusions, especially when a customer has strict performance, reliability, or cost targets.
What Intel and Broadcom said publicly
Intel’s position: Intel said 18A was healthy and yielding well, remained on schedule for high-volume manufacturing in 2025, and was not experiencing the failure suggested by the report. The company did not comment on specific customer conversations.
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Broadcom’s position: Broadcom said it was evaluating Intel Foundry’s products and services and had not concluded that evaluation.
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These responses matter because they show the limits of the headline. The report described a meaningful setback according to sources, but neither company announced that Broadcom had ended discussions or rejected Intel 18A outright.
Why the setback mattered to Intel’s foundry strategy
Intel was attempting to become a major contract chip manufacturer, competing for external customers rather than relying only on chips designed by Intel itself. That strategy requires more than an advanced transistor design. It requires customers to trust Intel with their own designs, manufacturing schedules, quality targets, packaging requirements, and supply commitments.
A reported problem in a prospective customer’s evaluation therefore raised broader questions:
- Could Intel turn its process technology into a dependable foundry service?
- Would external customers trust 18A for leading-edge, high-volume products?
- Could Intel maintain its aggressive 18A schedule?
- Would customer volume arrive soon enough to support Intel’s large manufacturing investments?
- Could the foundry business improve Intel’s financial position quickly enough?
The concern was especially significant because Intel had promoted 18A as a central part of its manufacturing comeback. A customer-specific setback did not prove that the roadmap had failed, but it challenged confidence in the commercial readiness of that roadmap.
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Where Microsoft fits into the story
In February 2024, Intel announced that Microsoft had selected a chip design it planned to manufacture on Intel 18A. That was an important design win, but it was not proof that every external customer had already moved into high-volume production.
The available reporting does not establish that Microsoft cancelled its project because of Broadcom’s evaluation. It would therefore be inaccurate to describe the Broadcom episode as evidence that Microsoft abandoned Intel.
More broadly, one customer’s evaluation cannot determine the outcome for every 18A design. Different chips place different demands on a process, and customers may enter production at different stages of design and manufacturing maturity.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.What happened to 18A afterward?
Intel’s 2025 annual report provides an important later data point. The company states that 18A, its most advanced leading-edge process at that time, first entered high-volume manufacturing in late 2025. Intel also said the process was intended to support multiple generations of products, including products related to Panther Lake.
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You can read the statement in Intel’s 2025 annual report filed with the U.S. Securities and Exchange Commission.
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This later milestone does not necessarily disprove the 2024 Reuters report. A process may be unsuitable for a particular customer’s design or production threshold during development and later become viable after additional engineering, yield improvement, tooling work, and design-enablement updates.
How to interpret the 2024 story today
The most accurate reading separates four claims:
- Verified event: Reuters published a report based on sources familiar with Broadcom’s evaluation.
- Reported finding: Broadcom was said to be disappointed and to view 18A as not yet ready for its high-volume requirements.
- Public corporate response: Intel defended 18A’s health and yield, while Broadcom said its evaluation was ongoing.
- Later outcome: Intel subsequently reported that 18A entered high-volume manufacturing in late 2025.
Those facts should not be compressed into the claim that “Intel’s chip process failed.” The report concerned readiness at a particular stage, for a particular prospective customer, and the precise technical cause was not made public.
Bottom line
Broadcom’s reported 2024 evaluation exposed a serious question about whether Intel 18A was mature enough for a demanding external customer’s high-volume production needs. It did not establish that 18A was defective, that Broadcom formally rejected Intel, or that Microsoft cancelled its reported 18A plans.
Intel’s later filing that 18A entered high-volume manufacturing in late 2025 shows that the setback was not the final verdict on the process. The episode is best viewed as an early customer-qualification and commercial-readiness problem during development—not proof of a permanent failure.
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