Estimated reading time: 7 minutes

Target Condition: When Design Outpaces Manufacturing

Most PCB designers already understand why design for manufacturing (DFM) matters. If a product can’t be built reliably, repeatedly, and at a price anyone will actually pay, it’s dead on arrival. You may have the most elegant schematic and layout ever drawn in a CAD tool, but if the PCB suppliers can’t make it, or the EMS sources refuse to quote it, you may well be considered more of a Nutty Professor or well-meaning inventor than a PCB designer.

While designing for manufacturing makes sense, what about designing for invention? Maybe we should be talking about manufacturing for design (MFD), the idea that manufacturing sometimes has to evolve to keep up with the crazy ideas designers dream up. That tension of DFM vs. MFD isn’t academic. It’s exactly where innovation either takes off or crashes and burns as a PCB design project that devours the budget.

The Conversation That Sparked the Question
At IPC APEX EXPO 2025, I spoke with Keytronic Executive VP Chad Orebaugh about the moment when an ambitious design collides head-first with the laws of manufacturing physics. DFM has been the rulebook for decades, and the premise is simple: if something can’t be manufactured easily, it probably shouldn’t be designed that way. Fair enough.

But at one point, our conversation took a hard left turn when Chad said something obvious once you heard it: We didn’t land on the moon, and we certainly won’t get to Mars, by designing within the limits of the machines, materials, and processing we already had. At some point, manufacturing had to catch up with the idea.

That’s where MFD happens. Invention has an annoying habit of demanding materials that don’t exist, requiring processes nobody has figured out yet, and asking machines to do things they’ve never done before. Innovation often leaps into advancement: Designers specify something just beyond current capability, and, if they want the business, manufacturers figure out how to make it happen. Sometimes that works, and sometimes the manufacturer laughs and hangs up.

Stop Saying ‘You Can’t Do That’
For decades, the PCB industry has been very good at telling designers what we can’t do. DFM is essentially a long list of guardrails meant to keep designers from driving their layouts straight off a cliff: Too small. Too thin. Too weird. Too expensive, made of “unobtainium.”

Those guardrails are useful, but MFD allows us to ask a different question: What if manufacturing’s job wasn’t just to enforce limits, but to remove them? The goal becomes providing designers with what you might call extreme design capability, meaning the shape, material stack, and architecture of an electronic system aren’t dictated entirely by the constraints of traditional fabrication and assembly processes.

This isn’t as far-fetched as it sounds. Consider the early prototype of the Apple-1 computer, hand-wired by Steve Wozniak in his apartment 50 years ago. At that stage, scalability was the least of anyone’s concerns. The goal was simply to make the idea work. Only later did manufacturing figure out how to produce it. In some ways, modern prototyping tools are bringing us back to that mindset.

The Desktop Invention Lab
Today’s designers have tools that would have looked like science fiction 50 years ago, including advanced CAD tools, powerful simulation engines, affordable additive manufacturing, and, increasingly, 3D-printed electronics.

Designers are experimenting with curvilinear circuit geometries, embedded components, flexible substrates, and structures that look less like traditional PCBs and more like something that escaped from a mechanical engineering lab. The result is a new era of desktop-driven invention.

This is great news for designers, and slightly terrifying for manufacturers. Supporting those ideas may require entirely new processes, materials, and equipment. Manufacturers are investing heavily in Industry 4.0 technologies, driven by automation, digital process monitoring, and highly adaptable production lines. Fabrication techniques are evolving as well. Processes such as modified semi-additive processing (mSAP) and materials sputtering allow far finer conductor geometries than traditional subtractive etching ever could. Suddenly, trace widths that once sounded ridiculous are becoming routine, which is exactly how innovation sneaks forward.

The Material Problem
If manufacturing is the engine of electronics, materials are the fuel, but sometimes the fuel simply isn’t available yet. Forward-thinking manufacturers are beginning to treat materials like strategic assets. Some are stocking advanced laminates—ultra-low-loss PTFE and ceramic-filled systems from Arlon, EMC, Isola, Qnity and Rogers—long before designers start asking for them.

That strategy isn’t cheap. But when the next wave of high-frequency designs arrives, those suppliers aim to be ready.

Regulations are also reshaping the materials landscape. Environmental rules such as the Restriction of Hazardous Substances (RoHS) Directive and Waste Electrical and Electronic Equipment Directive are pushing manufacturers to explore recyclable and biodegradable substrates.

At the same time, AI and EV applications are generating enormous thermal loads. Fabricators are responding with metal-core boards and new thermal management structures designed to dissipate heat far more effectively. Materials, in other words, are quietly becoming one of the biggest battlegrounds in electronics manufacturing.

Modeling the Impossible
Design and manufacturing are also converging in simulation. Many engineers prove their designs mathematically before hardware even exists. Electrical, thermal, and mechanical simulations can predict performance long before a prototype hits a fabrication line.

If manufacturers get access to those models early enough, they can create a powerful digital twin, essentially a virtual copy of both the product and the process required to build it. Manufacturing engineers can run simulated production scenarios, identify bottlenecks, and test process limits before anyone spends money on laminate and copper.

In other words, we can fail faster and far cheaper. Occasionally, we discover that the “impossible” design isn’t impossible after all.

When DFM Isn’t Enough
DFM still matters. Many PCB projects still go sideways because of poor documentation, unrealistic tolerances, or material selections that have no connection to the real supply chain. Standards developed by organizations like the Global Electronics Association exist for a reason. Good design still means choosing tolerances that manufacturing can hit, materials that actually exist, and processes that won’t cause your fabricator to quietly blacklist you.

But there’s another idea that needs more discussion: Sometimes the infrastructure needed to build the idea simply doesn’t exist. When that happens, innovation stalls. Manufacturers might admire the idea, but still decline the job. If you’ve ever watched “Shark Tank,” you’ve heard the phrase: “Great concept! But for that reason, I’m out.”

A Lesson from the Space Race
History provides a useful reminder. The technological surge driven by NASA during the space race accelerated countless technologies we now take for granted: integrated circuits, satellite communications, GPS navigation, advanced materials, miniaturized sensors, and entire disciplines like systems engineering.

But getting those technologies into everyday products wasn’t easy. Many early innovations were classified, expensive, or dependent on specialized manufacturing techniques that didn’t exist outside government labs. Eventually, those ideas filtered into the commercial world, but it took time, translation, and a lot of stubborn engineers.

The Ecosystem Problem
Innovation doesn’t happen in isolation; it happens in ecosystems. Government programs fund risky research. Entrepreneurs identify real-world opportunities. Manufacturers build the infrastructure needed to turn ideas into products. When those three forces line up, industries are born. When they don’t, the idea goes back in the drawer.

Where Does That Leave Us?
The future doesn’t belong exclusively to DFM or MFD; we need both. DFM keeps designers from doing ridiculous things that manufacturing can’t support. MFD pushes manufacturing to evolve so that tomorrow’s ridiculous ideas eventually become the norm.

Bad design ignores reality. Good design understands the ecosystem it lives in and pushes it just far enough to make progress. Bad manufacturing falls behind design trends. Good manufacturing anticipates where those trends are headed.

Innovation rarely happens by staying safely inside today’s limits. It happens when someone designs something that shouldn’t work, and manufacturing steps in to prove them wrong.

This column originally appeared in the April 2026 issue of I-Connect007 Magazine.