How To Build Billions of Bumps


Key Takeaways: Hybrid bonding can result in a package containing billions (and eventually trillions) of connections. Building that many connections successfully requires extreme process uniformity across a wafer. Inspection isn’t practical, and test benefits from internal test mechanisms. Hybrid bonding allows unprecedented signal pitch, but fully populating dies and inter... » read more

Chip Industry Week In Review


ECTC Panel-level packaging, hybrid bonding, new substrates, and fine-pitch interconnects topped the list of advanced packaging technologies at ECTC this week. Among the announcements: ASE launched an automated 310mm × 310mm panel-level packaging production line. Expected to enter production in the first half of 2027, the line is compatible with FOCoS and FOCoS-Bridge pa... » read more

Chip Industry Week In Review


Manufacturing ASE and WUS are jointly building a ~$1.1B advanced packaging hub in Kaohsiung, Taiwan, for fan-out chip-on-substrate (FOCoS) and flip-chip ball grid array (FC BGA) technologies. The new site is expected to be completed by September 2029. SpaceX filed documents for a “Terafab” semiconductor manufacturing and computing facility at Gibbons Creek Reservoir in Texas, with a... » read more

Making Hybrid Bonding Better


Key Takeaways Fab processes are optimizing for cleanliness, planarity, and high bond quality. Nanotwinned copper and SiCN PVD enable lower anneal and deposition temperatures for HBM. A thin, protective layer helps preserve the Cu/dielectric during aggressive processes. The future of semiconductor manufacturing is no longer dependent just on shrinking features. Instead, chipm... » read more

Chip Industry Week in Review


The IEEE ISSCC conference was held this week in San Francisco. Among the highlights: IBM detailed an AI accelerator based on its new inferencing dataflow architecture. CEA-Leti presented a chip-scale, ultra-fast, battery-operated EPR spectrometer. QuTech introduced a cryo-CMOS SoC with NV centers in diamond. UTokyo showed its low-jitter PLL architecture for beyond 5G/6G. Imec d... » read more

Chip Industry Week in Review


Major Deals: Taiwan-based UMC is exploring possible collaboration with Polar Semiconductor for high-volume production of 8-inch wafers at Polar’s expanded Minnesota fab, a move that could provide domestic manufacturing capacity for automotive, data center, consumer, aerospace, and defense customers. Marvell will acquire Celestial AI for $3.25B, adding photonic fabric technology for o... » read more

Chip Industry Week in Review


The U.S. is considering annual approvals for Samsung and SK hynix to export chipmaking tools and materials to their factories in China, replacing perpetual waivers granted under the validated end user system, reports Bloomberg. The proposal, presented by the U.S. Commerce Department to South Korean officials, would require the companies to reapply each year for specific quantities of restricted... » read more

CMOS 2.0: Layered Logic For The Post-Nanosheet Era


The semiconductor industry has relied on a simple equation for more than five decades — shrink the transistor, pack more onto every wafer, and watch performance soar as costs plummet. While each new node delivered predictable gains in speed, power efficiency, and density, that formula is rapidly running out of steam. As transistors approach single-digit nanometer processes, manufacturing c... » read more

The Rise Of Thin Wafer Processing


The shift from planar SoCs to 3D-ICs and advanced packages requires much thinner wafers in order to improve performance and reduce power, reducing the distance that signals need to travel and the amount of energy needed to drive them. Markets calling for ultrathin wafers are growing. The combined thickness of an HBM module with 12 DRAM dies and a base logic chip is still less than that of a ... » read more

Hybrid Bonding Makes Strides Toward Manufacturability


Hybrid bonding is gaining traction in advanced packaging because it offers the shortest vertical connection between dies of similar or different functionalities, as well as better thermal, electrical and reliability results. Advantages include interconnect scaling to submicron pitches, high bandwidth, enhanced power efficiency, and better scaling relative to solder ball connections. But whil... » read more

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