Backside Power Delivery Gears Up For 2nm Devices


The top three foundries plan to implement backside power delivery as soon as the 2nm node, setting the stage for faster and more efficient switching in chips, reduced routing congestion, and lower noise across multiple metal layers. The benefits of using this approach are significant. By delivering power using slightly fatter, less resistive lines on the backside, rather than inefficient fro... » read more

Fan-Out Panel-Level Packaging Hurdles


Fan-out panel-level packaging (FOPLP) promises to significantly lower assembly costs over fan-out wafer-level packaging, providing the relevant processes for die placement, molding and redistribution layers (RDLs) formation can be scaled up with equivalent yield. There is still much work to be done before that happens. Until now, FOPLP has been adopted for devices that are manufactured in ve... » read more

Navigating Heat In Advanced Packaging


The integration of multiple heterogeneous dies in a package is pivotal for extending Moore’s Law and enhancing performance, power efficiency, and functionality, but it also is raising significant issues over how to manage the thermal load. Advanced packaging provides a way to pack more features and functions into a device, increasingly by stacking various components vertically rather than ... » read more

Photonic Debonding Provides A Cost-Efficient, High-Throughput Debond Process


As emerging technologies require ultrathinned device wafers, traditional debonding processes can pose some challenges. Photonic debonding is an innovative debonding process utilizing a carrier coated with an inorganic metal release layer that aids in the release of the thinned wafer from the carrier substrate with no force and no damage to the delicate wafer upon activation of the release layer... » read more

An Efficient, Cost-Effective, Continuous Polymer Purification Method


Polymer precipitation is a crucial process in chemical engineering and is widely applicable to many industries including semiconductors, pharmaceuticals, and wastewater treatment. In many industries, batch polymer precipitation is a common technique for polymer purification. However, batch polymer precipitation is an arduous and inefficient process, which generates excess solvent waste. It is l... » read more

Chip Industry Week In Review


By Jesse Allen, Karen Heyman, and Liz Allan Renesas will acquire Transphorm, which designs and manufactures gallium nitride power devices, for about $339 million. GaN, which is a wide-bandgap technology, is used for high-voltage applications in a slew of markets, including EVs and EV fast chargers, as well as data centers and industrial applications. Cadence acquired Invecas, a provider o... » read more

IC Manufacturing Targets Less Water, Less Waste


Fabs, OSATs, and equipment makers are accelerating their efforts to consume less water while recycling more material waste in a trend toward better sustainability. With chips, sustainability is heavily focused on carbon emissions, and energy consumption is a significant contributor. But there is an equal effort underway to reduce water consumption and pollution. Across the globe, the number ... » read more

Gearing Up For Hybrid Bonding


Hybrid bonding is becoming the preferred approach to making heterogeneous integration work, as the semiconductor industry shifts its focus from 2D scaling to 3D scaling. By stacking chiplets vertically in direct wafer-to-wafer bonds, chipmakers can leapfrog attainable interconnection pitch from 35µm in copper micro-bumps to 10µm or less. That reduces signal delay to negligible levels and e... » read more

Negative-Tone Photosensitive Polymeric Bonding Material To Enable Room Temperature Prebond For Cu/Polymer Hybrid Bonding


An evaluation of a negative-tone i-line photosensitive polymeric bonding material for achieving prebonding in Cu/polymer hybrid bonding at low temperatures via the Cu damascene process. The polymeric material has a Tg≤100∘C ; Young’s modulus of 99 MPa, the dielectric constant of 2.6, and dissipation factor of 0.0016 at 10 GHz. Shear tests revealed a bond shear strength of over 10 MPa when... » read more

Building Better Bridges In Advanced Packaging


The increasing challenges and rising cost of logic scaling, along with demands for an increasing number of features, are pushing more companies into advanced packaging. And while that opens up a slew of new options, it also is causing widespread confusion over what works best for different processes and technologies. At its core, advanced packaging depends on reliable interconnects, well-def... » read more

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