A wafer begins as a crystal somebody worked hard to grow. Then comes the strange part: a factory takes that valuable cylinder and saws some of it into dust. The missing material has a name, kerf, but the name can make the loss sound more inevitable than it is. To Andrei Iancu, the founder and CEO of Halo Industries, the scrap was a problem waiting for a different tool.
His tool is light. Halo builds laser-based systems and processes for slicing hard materials, with silicon carbide now at the center of the business. Silicon carbide wafers become the foundation of power electronics that manage high voltages in electric vehicles, charging equipment, industrial motors, rail systems, renewable power, and the grid. The finished devices may be tiny. The manufacturing consequences are not. The material is hard, brittle, costly, and unforgiving.
Iancu's story is often told as a sequence of impressive nouns - Romania, Boeing, Stanford, semiconductors. The verbs matter more. Leave. Study. Rebuild. Cleave. He has spent his career moving from one constrained system to another, carrying a stubborn question across them: why should the inherited way remain the default?
A childhood shaped by constraints
Iancu was born in communist Romania. After the country's revolution, his family reached the United States through the asylum process. He grew up in Illinois and Iowa, a Midwestern chapter he later connected to his instinct for working within limits. Scarcity was not an abstract management exercise. Resourcefulness became familiar early.
At Iowa State University, he pursued electrical engineering and aerospace engineering. Those fields meet where elegant equations collide with physical systems: power, controls, software, structures, and all the ways a real machine can reject a neat plan. He graduated into Boeing, where he worked as an engineer, scientist, and software engineer. He has described contributions to classified satellite programs, the X-37 experimental spaceplane, and Future Combat Systems.
Boeing also funded his graduate studies at Stanford. The shift in subject was revealing. His attention moved from vehicles in the sky to the materials inside modern technology - solar cells, fuel cells, batteries, semiconductors. The scale became smaller, but the systems thinking stayed intact.
“I'm an engineer at heart.”Andrei Iancu, describing the habit beneath the résumé
In 2008, Stanford's Aeronautics and Astronautics department named him the Nicholas J. Hoff Outstanding Master's Degree Student. By 2014 he had completed doctoral work in mechanical engineering with electrical engineering study and taken Stanford's Ignite program in innovation and entrepreneurship. That same year, he and his co-founders started Halo and joined StartX.
The founder community mattered to him. Iancu has spoken about entrepreneurs there with affection: some had raised billions, some had bootstrapped, all recognized the private strain of trying to make a new thing survive. StartX offered a practical antidote to founder mythology. The work could be lonely without having to be solitary.
The factory problem hiding in the cut
Halo's original research centered on ultra-thin silicon wafers for solar and semiconductor applications. Conventional wafering uses a saw. A saw needs space to pass through material, and the passage turns part of the ingot into kerf. It can also introduce stress and surface damage. If the input crystal is expensive, every lost fraction carries the cost of the energy, time, and equipment used to grow it.
Halo's answer combines laser preparation with controlled crack propagation and the surrounding handling, polishing, and metrology needed to deliver a useful wafer. The promise is not simply a clever cut in a lab. It is a repeatable production process that yields more wafers from each millimeter of crystal while reducing stress and surface defects.
Government energy programs helped carry that premise toward manufacturing. A 2015 project supported a semi-automated system for low-cost crystalline silicon wafers. Later work targeted silicon carbide, including a $1 million project designed to move an early prototype toward commercially relevant equipment for power electronics. Public project descriptions kept returning to the same plain objective: stop wasting the block.
Why silicon carbide became the beachhead
The market supplied a sharper use case. Silicon carbide can make power devices smaller, lighter, and more efficient than conventional silicon in demanding, high-voltage settings. Its usefulness made the substrate more valuable. Its brittleness made the manufacturing problem more painful. Halo adapted its process and moved into silicon carbide wafer production.
This is why Iancu calls the technology a picks-and-shovels play. Halo does not need to choose one electric vehicle, inverter, solar array, or industrial drive. It works lower in the stack, where the material becomes a platform for all of them. A better wafering process can travel through a technology tree without appearing on the leaves.
“We radically redefine how these critical elements are made by manufacturing with light.”Iancu on Halo's place beneath finished products
In July 2024, Halo announced an oversubscribed Series B of up to $80 million, led by U.S. Innovative Technology Fund with participation from 8VC and SAIC. The company said it was already in volume production. The financing was assigned a less cinematic job than invention: scale commercialization, extend the platform, and build the base for strategic engagements.
Aerospace systems at Boeing
Engineering and software work across satellite, spaceplane, and defense programs.
Stanford recognition
The Hoff Award for an outstanding Aero/Astro master's student.
Halo leaves the lab
The founding team forms a Stanford spinout and enters the StartX community.
Public support meets prototypes
Energy Department projects advance lower-waste silicon and silicon carbide wafering.
Capital for production
Halo announces up to $80 million to scale its manufacturing platform.
The unglamorous middle
A patent can describe controlled crack propagation in tidy language. A factory has opinions. Equipment arrives late. Components disappear from catalogs. A polishing recipe behaves differently at scale. Metrology reveals a defect that the previous measurement missed. Every answer creates another surface to inspect.
Iancu got a concentrated version of that lesson during the pandemic-era supply-chain shock. He said capital equipment that once took three to five months began taking twelve to sixteen. Critical parts became hard to obtain. Halo responded with alternative solutions and what he calls cycles of learning: try, measure, take apart, rebuild.
That operating rhythm appears in the way he talks about partners. In a 2024 conversation with Axus Technology, he praised a shared willingness to dismantle an approach when it failed and make it work better. The revealing word is not disruption. It is iteration. Manufacturing advantage accumulates through the number and quality of learning loops a team can complete.
It also complicates the lone-genius version of deep tech. Halo's public patent record names collaborators. Its production work depends on co-founders, equipment suppliers, government programs, investors, and customers willing to qualify a new process. Iancu may be the narrator, but the company is a network of specialized hands.
What else light might touch
Silicon carbide is the beachhead, not the boundary. Halo says its technology has worked across silicon, diamond, sapphire, lithium tantalate, gallium nitride, and other advanced materials. Each has different economics and failure modes. The common thesis is that photon-based processes can replace selected mechanical or thermal steps with more precise equivalents.
Iancu has sketched the branches that could follow: lower-cost solar, flexible displays, durable products that make more use of diamond, and device shapes limited by today's processing. These are aspirations, not shipped outcomes. Their credibility will come from the same unglamorous middle - yield, quality, throughput, maintenance, and customer qualification.
His ambitions are not confined to materials. On a 2025 episode of the Line of Sight podcast, he discussed a possible future focus on gaps in childcare and early childhood education. It sounds distant from wafering until you notice the recurring concern: give more people the resources and opportunity to become capable. In 2022, he described that as a social goal. Technology, in his view, should make scarcity less decisive.
There is a playful detail in his media diet. During Halo's sprint toward production, he said most of his reading had narrowed to legal and technical documents. Podcasts filled the drives and workouts instead. He liked conversations where people could argue across different viewpoints without dissolving the relationship. For an engineer managing fracture, the preference feels apt: stress is useful when the break happens exactly where intended.
The value in what does not become dust
Halo's proposition can be reduced to a clean image: a bright line moving through a dark crystal. The actual business is messier. It must prove that the line produces repeatable wafers, that those wafers survive downstream processing, that the equipment earns its place on a production floor, and that savings remain after every supporting step is counted.
That is also what makes Iancu's choice interesting. He did not begin with the visible product. He chose the loss before the product, the dust swept away before a device exists. The company grows if it can turn that subtraction into yield.
A resource-constrained childhood, aerospace work, graduate research, and factory operations do not collapse into one neat origin story. They do share a discipline: look closely at what a system throws away. Material. Time. Energy. Opportunity. Then see whether a different process can keep more of it.