Intel’s 18A manufacturing process has become a major milestone for Intel Foundry, especially after proving itself in the company’s upcoming Panther Lake lineup. It’s a clear sign that Intel’s long-term bet on advanced semiconductor manufacturing is starting to pay off internally. But despite the technical progress and the confidence inspired by Panther Lake’s rollout, one big question remains: why aren’t outside chipmakers rushing to adopt Intel 18A yet?
The hold-up largely comes down to a major design shift built into Intel 18A: BSPDN, short for Backside Power Delivery Network. In simple terms, BSPDN changes how power is delivered inside a chip. Instead of routing power and ground connections on the front side of the silicon (the traditional approach most designers are used to), Intel’s BSPDN routes power through the back side. The benefit is significant: freeing up space on the front side can improve signal routing for data, which can help performance, efficiency, and scaling as chips become more complex.
Intel’s implementation of backside power is known as PowerVia, and it’s a key piece of what makes 18A stand out. The node also includes RibbonFET, Intel’s next-generation transistor technology. Together, these are not small updates—they represent a structural change in how advanced chips can be built.
That’s also exactly why adoption is limited right now.
Even if Intel’s 18A delivers real advantages in power integrity and long-term scaling efficiency, BSPDN requires many potential customers to rethink how they design chips at a physical level. It’s not just a matter of porting an existing design onto a new process. Because backside power delivery deviates from conventional design methods, chipmakers may need a ground-up rework of their physical design flow, along with validation, tooling adjustments, and engineering time. For companies that depend on predictable manufacturing transitions, that kind of shift can slow decision-making—especially early in a technology lifecycle.
Industry analysis suggests Intel may simply be ahead of the broader ecosystem on backside power delivery. While Intel is already pushing PowerVia into production, other major foundries are widely expected to introduce similar backside power approaches later, with broader industry alignment anticipated closer to 2027. That timing matters, because many chip developers prefer to adopt disruptive changes when more of the industry—and the toolchain—has matured around them.
Still, being first comes with a strategic upside. Intel’s early move gives it a head start versus rivals that may not bring comparable solutions until later nodes. And if Panther Lake ramps smoothly and meets performance and efficiency expectations, it gives Intel a powerful real-world example to show customers that backside power delivery can work at scale, not just in theory.
This is one reason expectations are growing around Intel 18A-P, a derivative of 18A that could be positioned as a more attractive step for broader adoption. If Intel can refine the platform and make onboarding easier for external customers—while proving out yields and performance in high-volume products—interest could accelerate.
In the bigger picture, external chipmakers may find it more practical to line up with Intel on later nodes, such as Intel’s 14A-class technologies. By then, the industry will likely be more prepared for new transistor structures and alternate power delivery methods, making the transition less disruptive.
For now, Intel 18A looks like a genuine breakthrough that strengthens Intel Foundry’s credibility—especially with Panther Lake serving as a high-profile proof point. The next challenge isn’t whether the technology works, but whether Intel can turn that technical edge into widespread customer adoption in the near term.
