Extending Copper Interconnects To 2nm


Transistor scaling is reaching a tipping point at 3nm, where nanosheet FETs will likely replace finFETs to meet performance, power, area, and cost (PPAC) goals. A significant architectural change is similarly being evaluated for copper interconnects at 2nm, a move that would reconfigure the way power is delivered to transistors. This approach relies on so-called buried power rails (BPRs) and... » read more

Fundamental Shifts In IC Manufacturing Processes


High chip value and 3D packaging are changing where and how tests are performed, tightening design-for-reliability and accelerating the shift of tools from lab to fab. Heterogeneous integration and more domain-specific designs are causing a string of disruptions for chip manufacturers, up-ending proven fab processes and methodologies, extending the time it takes to manufacture a chip, and ul... » read more

Auto Chipmakers Dig Down To 10ppb


How do engineers deliver 10 defective parts per billion (Dppb) to auto makers if they only screen 1 million parts per year? Answer: By comprehending failure mechanisms and proactively screening for them. Modern automobiles contain nearly 1,000 ICs that must perform over the vehicle’s life (15 years). This drives quality expectations ever higher. While 10 Dppm used to be a solid benchmark, ... » read more

Silicon-based Power Semis Face Challenges


Suppliers of power semiconductors continue to develop and ship devices based on traditional silicon technology, but silicon is nearing its limits and faces increased competition from technologies like GaN and SiC. In response, the industry is finding ways to extend traditional silicon-based power devices. Chipmakers are eking out more performance and prolonging the technology, at least in th... » read more

Unknowns Driving Up The Cost Of Auto IC Reliability


Automotive chipmakers are considering a variety of options to improve the reliability of ICs used for everything from sensors to artificial intelligence. But collectively they could boost the number of process steps, increase the time spent in manufacturing and packaging, and stir up concerns about the amount of data that needs to be collected, shared, and stored. Accounting for advanced pro... » read more

Next-Gen 3D Chip/Packaging Race Begins


The first wave of chips is hitting the market using a technology called hybrid bonding, setting the stage for a new and competitive era of 3D-based chip products and advanced packages. AMD is the first vendor to unveil chips using copper hybrid bonding, an advanced die-stacking technology that enables next-generation 3D-like devices and packages. Hybrid bonding stacks and connects chips usin... » read more

Week In Review: Manufacturing, Test


Government policy As reported, the United States is in dire need of more fab capacity as well as packaging plants. The U.S. took a big step in an effort to solve the problem. The U.S. House of Representatives this week introduced the America Competes Act of 2022. The bill includes funding for the Creating Helpful Incentives to Produce Semiconductors for America (CHIPS) Act, which is earmarked... » read more

200mm Shortages May Persist For Years


A surge in demand for chips at more mature process nodes is causing shortages for both 200mm foundry capacity and 200mm equipment, and it shows no signs of letting up. In fact, even with new capacity coming on line this year, shortages are likely to persist for years, driving up prices and forcing significant changes across the semiconductor supply chain. Shortages for both 200mm foundry cap... » read more

The Gargantuan 5G Chip Challenge


Blazing fast upload and download speeds for cellular data are coming, but making the technology function as expected throughout its expected lifetime is an enormous challenge that will require substantial changes across the entire chip ecosystem. While sub-6GHz is an evolutionary step from 4G LTE, the real promise of 5G kicks in with millimeter-wave (mmWave) technology. But these higher-freq... » read more

Inspecting And Testing GaN Power Semis


As demand for new automotive battery electric vehicles (BEVs) heats up, automakers are looking for solutions to meet strict zero-defect goals in power semiconductors. Gallium nitride (GaN) and silicon carbide (SiC) wide-bandgap power semiconductors offer automakers a range of new EV solutions, but questions remain on how to meet the stringent quality goals of the automotive industry. Among t... » read more

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