Junwei
Bao

In the late 1990s, at UC Berkeley's electrical engineering labs, Junwei Bao was working on a problem that almost no one outside semiconductor manufacturing cared about: how do you measure the width of a circuit feature that is smaller than the wavelength of visible light? The answer, it turned out, involved bouncing precisely calibrated beams off chip surfaces and reading the scatter patterns. It was, in essence, a form of LiDAR - just pointed at silicon wafers rather than the open road.

That work became Timbre Technologies, the company Bao co-founded before completing his PhD. Timbre invented OCD - optical critical dimension - scatterometry, a tool that transformed semiconductor process control. Tokyo Electron acquired it in February 2001. Bao was 30 years old.

He spent the next thirteen years at Tokyo Electron America, working his way from Senior Research Scientist to VP of Engineering and Technology. Precise instruments. Long development cycles. Tolerances measured in nanometers. The skills that would not look automotive-relevant to most people were, for Bao, the exact skills autonomous driving demanded.

In 2014, Baidu was building China's answer to Google's self-driving car project. They needed someone who understood sensors at the physics level, not just as off-the-shelf components. Bao joined Baidu USA as Head of Autonomous Driving Hardware & Sensors - then also took on the Head of HPC role, overseeing high-performance computing infrastructure for data centers. The dual portfolio was unusual. It gave him a view of the whole system: the sensor capturing the world, and the compute turning raw data into decisions.

By 2016, he and co-founder Yimin Li had seen enough of what existing LiDAR technology couldn't do. Long-range detection was mediocre. Resolution was poor. The industry was talking about LiDAR as a necessary evil - a sensor you'd eventually want to replace. Bao thought differently. He believed the right LiDAR, built correctly, could be image-grade: as rich in detail as a high-res camera, but with depth data that cameras can't provide.

They founded Innovusion in Silicon Valley that year.

Innovusion's first product, the Cheetah, was the first LiDAR to combine image-grade resolution with the signal-to-noise ratio needed for long-distance detection. The industry benchmark for automotive LiDAR was roughly 150 meters of reliable range. The Cheetah pushed past that while maintaining the kind of point cloud density previously associated only with survey-grade equipment that costs more than most cars.

NIO noticed. The Chinese EV maker chose Innovusion as the LiDAR supplier for its flagship vehicles - an endorsement that came with production volume requirements that would have broken most startups. Bao's semiconductor background proved essential: building a scalable, automotive-qualified supply chain is a manufacturing discipline, not just an engineering one. Seyond became the first company to achieve mass-production delivery across both 1550nm and 905nm/940nm LiDAR technology routes simultaneously.

By late 2023, the cumulative delivery count crossed 200,000 units. In 2024 alone, the company shipped approximately 230,000 automotive-grade systems. The former startup now ranks fourth globally in ADAS LiDAR revenue, holding 12.8% of the market.

Bao's vision for Seyond has always been wider than the automotive market. Smart infrastructure - traffic management systems, port and shipping logistics, rail transit monitoring, urban safety analytics - all need the same thing a self-driving car needs: accurate, real-time spatial data about the world.

In early 2024, Seyond announced a deal with Avikus to supply high-performance LiDAR for autonomous boat navigation. The same year, the company partnered with Wideye by AGC to demonstrate a windshield-integrated LiDAR solution at CES 2024 - embedding the sensor directly into automotive glass rather than mounting it on a roof. That integration problem, like most of Bao's career challenges, sat at the intersection of optics, materials science, and manufacturing.

Seyond operates R&D centers in Silicon Valley, Suzhou, and Shanghai, with manufacturing facilities across Suzhou, Deqing, Pinghu, and Wuxi. The global LiDAR market - projected to grow from $3.5 billion in 2025 to $41.3 billion by 2030 - is the arena Bao has chosen to operate in. The CAGR on that projection is 63.7%. He is not running out of road.