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Intel delays 18A schedule: manufacturing problems slow down the hopeful centerpiece of the foundry offensive

Daniel Nenni

Founder
Staff member
At Intel, ambitions were high—perhaps a little too high all at once. The 18A process was supposed to mark the major comeback, both technologically and strategically. Instead, indications are now increasing that this very flagship is causing internal delays.

Intel 18A Delay.jpg


Reports of yield problems and internal adjustments

According to consistent reports from industry circles and the supply-chain environment, Intel has postponed parts of the planned mass production of its 18A process. This has not yet been officially confirmed in this form; however, Intel itself recently emphasized that it was still “on track” — a formulation that, as experience shows, leaves room for interpretation. Specifically, the issue concerns so-called yield problems, meaning the output of functioning chips per wafer. This is not surprising with new technologies such as RibbonFET (Gate-All-Around transistors) and PowerVia (Backside Power Delivery) — but the scale is.

Intel 18A is not just another shrink. It is a complete architectural transition on multiple levels:

1778051960967.png

This combination massively increases complexity. In particular, the integration of PowerVia is considered a riskier step, as it intervenes deeply in the design and thermal characteristics. The delays hit Intel at a sensitive point. With Intel Foundry Services (IFS), the company wanted to compete seriously with TSMC for the first time. Customers such as Microsoft or potentially also US government projects, however, require stable roadmaps. Should the indications be confirmed, confidence in Intel’s manufacturing offensive could at least suffer in the short term. At the same time, it should be noted: Samsung also regularly struggles with similar problems at new nodes. The current status is a classic example of the reality of modern semiconductor development: ambition meets physics. The decisive factor will be whether Intel can stabilize the problems in the short term or whether structural delays will result. A final schedule for the broad rollout of 18A therefore remains—at least from an external perspective—unclear.

Conclusion
With 18A, Intel is deliberately taking a high risk in order to return to the technological forefront. That it is encountering problems is hardly surprising. What matters now is not the delay itself, but how quickly and cleanly Intel responds to it. The coming months are likely to decide whether 18A becomes a turning point—or the next chapter in an already long catch-up effort.

1778051992073.png

 
I don't remember any delays announcement on process though DMR is getting delayed for sure

Ditto.

It is important to separate internal products and external foundry business. Customer test chips (mostly IP) are being run on 18AP but I have not heard anything on yield which generally means there are no problems. I will check.

For Intel internal 18A products:

Intel Panther Lake is Intel’s first officially launched product built on Intel 18A. Intel announced it as the first AI PC platform using the node.
Intel Clearwater Forest is Intel’s first 18A-based server processor family. It targets cloud, telecom, edge AI, and hyperscale workloads with up to 288 E-cores.
Intel Diamond Rapids has repeatedly been identified by Intel roadmap reporting as another major 18A server product, though launch timing may slip into 2027.
Intel Nova Lake is also expected to use Intel 18A for at least parts of the lineup, according to Intel roadmap disclosures and industry reporting.

Questions:
These are all chiplets with TSMC dies mixed in?
Are the Intel chiplets yielding?
Are there problems with chip assembly and packaging?
Are there any monolithic Intel designs yet?
 
For Intel internal 18A products:
Intel Panther Lake is Intel’s first officially launched product built on Intel 18A. Intel announced it as the first AI PC platform using the node.
Intel Clearwater Forest is Intel’s first 18A-based server processor family. It targets cloud, telecom, edge AI, and hyperscale workloads with up to 288 E-cores.
Intel Diamond Rapids has repeatedly been identified by Intel roadmap reporting as another major 18A server product, though launch timing may slip into 2027.
Intel Nova Lake is also expected to use Intel 18A for at least parts of the lineup, according to Intel roadmap disclosures and industry reporting.

Questions:
These are all chiplets with TSMC dies mixed in?
Are the Intel chiplets yielding?
Are there problems with chip assembly and packaging?
Are there any monolithic Intel designs yet?
All DC CPU Products like ClearWater Forest and Diamond Rapids are fully Intel Foundry and from Intel's commentary on ClearWater Forest there is a packing issue i think DMR as well that's why it's delayed it's Intel First time using Hybrid Bonding so i guess that's the issue allso Intel confirmed Clearwater Forest packing issue last year.

For Client Nova Lake is a mix on 18A/N2 and uses advanced packing the only chip that you can call monolithic is WCL it uses 18A compute Die(around 80mm2 18A) and N6 PCH
 
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