What's the hottest concept in the semiconductor industry right now? Glass substrates.
Intel is pouring $1 billion into it, TSMC has just built a pilot production line, Samsung Electro-Mechanics has partnered with Japan's Sumitomo Chemical to race toward mass production, and BOE and Corning have joined the fray one after another — even glass substrate concept stocks on China's A-share market have gone parabolic.
Many people are asking: how did this seemingly ordinary piece of glass suddenly become the "hot commodity" that global tech giants are scrambling for?
In fact, long before these giants rushed in, a chip company called Chipsailing, based in Shenzhen, had already figured out glass substrate technology — it's just that their first application was something you and I have all used: fingerprint recognition.
Why Are Glass Substrates Suddenly So Hot?
To understand the value of glass substrates, you first need to know what problem they solve.
For the past several decades, the mainstream substrate material for chip packaging has been organic substrates. But as AI chips grow larger and larger and power consumption keeps climbing, organic substrates are reaching their limits:
Their coefficient of thermal expansion is far too different from that of silicon chips — when the chip heats up during operation, the substrate warps and deforms, directly impacting chip performance;
Their dielectric loss is too high, causing significant signal degradation during high-speed data transmission, making them unable to keep up with the data throughput demands of AI chips;
Their surface flatness is insufficient to support finer circuit routing, and they are approaching their physical limits.
Glass substrates happen to solve all of these pain points:
Their coefficient of thermal expansion closely matches that of silicon chips, significantly reducing warpage issues in large-scale packaging;
Their dielectric loss is just one-tenth that of organic substrates, enabling faster and more stable signal transmission — a perfect fit for the high-frequency demands of AI chips;
Their surface flatness is 5,000 times that of organic substrates, supporting fine-line routing below 2 micrometers and leaving ample room for future chip performance improvements.
This is exactly why global giants are racing to secure a position: according to Omdia's estimates, the global glass substrate market will reach $18.6 billion in 2026 and is expected to surpass $32 billion by 2030, with a compound annual growth rate of 14.5% — making it a must-win battleground for next-generation chip packaging.
Chipsailing: The Chinese Company That Has Already Put Glass Substrates to Work
While packaging giants are still struggling to crack mass production of glass substrates, Chipsailing has already achieved large-scale production of glass-based fingerprint chips, becoming the first company in China and the second in the world to do so, holding a significant share in critical scenarios such as government affairs and border control.
Many people wonder: what advantages does glass bring to fingerprint recognition compared to traditional silicon-based solutions?
First, the cost is significantly lower. The raw material cost of glass is far below that of silicon wafers, and Chipsailing's glass-based fingerprint chips come at a substantially lower comprehensive cost than traditional silicon-based alternatives, making large-scale adoption much more accessible.
Second, the security is stronger. The high light transmittance of glass allows it to integrate infrared liveness detection — the moment a finger is pressed, it can detect subcutaneous blood oxygen characteristics. Silicone molds and gel fake fingerprints simply cannot fool it, effectively eliminating spoofing attacks at the hardware level.
Third, the durability is far superior. The glass surface is harder, with a press lifespan exceeding one million cycles — 10 times that of silicon-based solutions. Even in high-traffic environments like customs checkpoints and government service halls, it can operate reliably for years. Whether it's dry fingers, wet fingers, cracked fingers, or the shallow fingerprints of elderly users, the recognition rate still exceeds 95%.
Currently, Chipsailing's glass-based fingerprint products have passed three major certifications from China's Ministry of Public Security, the U.S. FBI FAP60 certification, and Microsoft certification. The company holds over 180 patents, and its technology can be found everywhere — from China's customs, public security, and government systems to border control checkpoints across Southeast Asia.
From Fingerprints to a Broader Future: Chipsailing's Glass Journey Is Just Beginning
Many people assume Chipsailing only makes fingerprint chips, but the potential of glass substrate technology extends far beyond biometrics.
The mass production experience, process capabilities, and patent portfolio that Chipsailing has accumulated in the glass substrate field represent a complete chain that has been proven from R&D all the way through to scaled deployment. This is rare across the industry — while packaging giants are still groping their way through glass substrate mass production in their labs, Chipsailing has already been deploying it at scale in real-world scenarios for years.
As applications of glass substrates in semiconductor packaging, optoelectronic co-packaging, and high-precision sensing begin to take off, Chipsailing, with its existing technological foundation, is well-positioned to leap beyond the boundaries of fingerprint recognition and enter a much broader glass substrate market.
From the tiny touchpoint of fingerprint recognition to the foundational substrate of AI chip packaging, the story of Chipsailing is, in many ways, a microcosm of China's chip industry: rather than following the crowd into a red ocean, find a breakthrough in foundational technology, overtake on a different track, start from a small application scenario, and gradually rise to the forefront of the industry.