Taiwan’s GlobalWafers is moving deeper into one of the semiconductor industry’s fastest-growing battlegrounds: advanced packaging.
The world’s third-largest silicon wafer supplier says wafers designed for advanced packaging should make a meaningful contribution to revenue in 2026, after generating only limited sales last year. The shift comes as artificial intelligence, high-performance computing and increasingly complex chip designs force semiconductor companies to rethink not only how chips are manufactured, but also how they are packaged and connected.
And GlobalWafers is experimenting with something that looks noticeably different from the traditional round silicon wafer.
From Round Wafers to 310mm Square Panels
GlobalWafers has begun supplying customers with 310mm-by-310mm square silicon wafer samples for qualification, targeting panel-level packaging applications.
The company expects the product to move into volume production in 2026.
But GlobalWafers is already looking beyond that size.
It has also produced a prototype measuring 510mm by 510mm, signaling how aggressively the company is exploring larger-format materials for next-generation packaging. SEMICON Taiwan separately lists GlobalWafers’ demonstrations of 300mm-by-300mm and 310mm-by-310mm square wafers as well as the 510mm-by-510mm prototype.
The technology matters because advanced AI processors are increasingly dependent on sophisticated packaging architectures that combine multiple dies, memory components, interposers and other elements into increasingly complicated systems.
GlobalWafers Chairwoman and CEO Doris Hsu said semiconductor wafers are consequently taking on roles beyond simply serving as the starting material from which individual chips are manufactured.
The company has developed products aimed at 3D packaging, interposers, carrier applications and silicon photonics, including 12-inch silicon-on-insulator, or SOI, wafers used for high-end optical waveguides.
AI Is Changing the Wafer Business
For GlobalWafers, the bigger story is the demand behind these products.
Hsu said she expects the global semiconductor wafer industry to grow at a double-digit annual rate over the next two years, driven by semiconductor capacity expansion and the continuing AI investment boom.
Her argument is that the industry is experiencing more than another conventional semiconductor cycle.
AI is creating what she described as a structural shift in demand across silicon and other semiconductor materials.
GlobalWafers’ August financial update provides some evidence that conditions are already improving.
The company reported NT$15.2 billion in consolidated second-quarter 2026 revenue, an increase of 8.8% from the previous quarter, although still 5% below the same period a year earlier.
Second-quarter net income reached NT$3.8 billion, while earnings per share were NT$7.90. First-half revenue totaled NT$29.2 billion.
The company also said its existing 12-inch wafer capacity, excluding newly expanded production lines, was fully utilized, while utilization of its 8-inch facilities remained high.
GlobalWafers pointed specifically to demand from AI, high-performance computing, silicon photonics and advanced packaging as factors supporting its higher-value product portfolio.
Customers Are Locking In Supply Years Ahead
Perhaps an even stronger signal comes from what GlobalWafers’ customers are doing.
The company says customers are increasingly willing to reserve wafer capacity years in advance through long-term supply arrangements.
One of the clearest examples arrived in July.
Micron announced plans to provide US$500 million in strategic financing to GlobalWafers to support development and manufacturing capabilities at its 300mm raw silicon wafer plant in Sherman, Texas.
The companies also announced plans for a 10-year supply agreement, giving Micron access to significant U.S.-produced raw silicon wafer capacity for its long-term semiconductor manufacturing requirements.
The deal forms part of Micron’s broader plan to invest up to US$3 billion in the U.S. semiconductor supply-chain ecosystem.
Reuters reported that Micron’s broader U.S. investment plans now exceed US$250 billion through 2035, reflecting surging demand for memory products used in artificial intelligence infrastructure.
For GlobalWafers, the agreement provides something especially valuable in the highly cyclical semiconductor business: long-term demand visibility.
Focus Taiwan reported that the partnership is intended to support growing demand for advanced memory used in AI, high-performance computing, data centers and cloud services while strengthening the U.S. supply of critical semiconductor materials.
The Bigger Opportunity May Be Advanced Packaging
The traditional wafer business is far from disappearing. Every modern processor, memory chip and countless other semiconductor devices still begin with highly engineered wafers.
But AI is forcing the industry to solve increasingly difficult problems after individual dies are manufactured.
Advanced packaging, high-bandwidth memory, chiplets and silicon photonics are becoming critical parts of the performance equation.
That is why GlobalWafers’ square wafers may be more significant than their unusual shape suggests.
They represent an attempt by one of the world’s biggest wafer suppliers to capture more value as semiconductor manufacturing expands beyond traditional chip fabrication and into increasingly sophisticated packaging.
And GlobalWafers is not betting on silicon alone.
Hsu said silicon carbide wafers and transparent silicon carbide wafers could also have roles in advanced packaging, widening the potential materials opportunity as semiconductor architectures become more complex.
What Happens Next
The key milestone now is commercialization.
GlobalWafers has already moved its 310mm square wafers into customer verification and says volume production is expected this year. Its much larger 510mm prototype shows where the technology could go next, but a prototype should not be confused with a commercially proven mass-production product.
That distinction matters.
The real test will be whether semiconductor manufacturers qualify these new formats at scale, whether advanced packaging demand develops as rapidly as GlobalWafers expects, and whether the company can convert booming AI infrastructure spending into sustained higher-margin revenue.
Still, customers locking in wafer supply for as long as a decade suggests that some of the industry’s biggest players are preparing for demand that lasts much longer than the typical semiconductor upcycle.
For GlobalWafers, AI may therefore be doing more than filling factories.
It could be changing what a wafer is used for — and turning advanced packaging into the company’s next major growth engine.
WWC ONE MEDIA J.M.D
Leave a Reply