3D Structures Challenge Wire Bond Inspection


Adding more layers in packages is making it difficult, and sometimes impossible, to inspect wire bonds that are deep within the different layers. Wire bonds may seem like old technology, but it remains the bonding approach of choice for a broad swath of applications. This is particularly evident in automotive, industrial, and many consumer applications, where the majority of chips are not de... » read more

Week In Review: Semiconductor Manufacturing, Test


The U.S. Commerce Department outlined proposed rules for the Chips for America Incentives Program, including additional details on national security measures applicable to the CHIPS Incentives Program included in the CHIPS and Science Act. The rules limit funding recipients from investing in the expansion of semiconductor manufacturing in foreign countries of concern, notably the People’s Rep... » read more

Metrology Strategies For 2nm Processes


Metrology and wafer inspection processes are changing to keep up with evolving and new device applications. While fab floors still have plenty of OCD tools, ellipsometers, and CD-SEMs, new systems are taking on the increasingly 3D nature of structures and the new materials they incorporate. For instance, processes like hybrid bonding, 3D NAND flash devices, and nanosheet FETs are pushing the bo... » read more

Ternary LIM Operation of the TNAND and TNOR Universal Gates Using DG Feedback FETs


A technical paper titled "Logic-in-Memory Operation of Ternary NAND/NOR Universal Logic Gates using Double-Gated Feedback Field-Effect Transistors" was published by researchers at Korea University. Abstract "In this study, the logic-in-memory operations are demonstrated of ternary NAND and NOR logic gates consisting of double-gated feedback field-effect transistors. The component transistor... » read more

How To Build Resilience Into Chips


Disaggregating chips into specialized processors, memories, and architectures is becoming necessary for continued improvements in performance and power, but it's also contributing to unusual and often unpredictable errors in hardware that are extremely difficult to find. The sources of those errors can include anything from timing errors in a particular sequence, to gaps in bonds between chi... » read more

Process Innovations Enabling Next-Gen SoCs and Memories


Achieving improvements in performance in advanced SoCs and packages — those used in mobile applications, data centers, and AI — will require complex and potentially costly changes in architectures, materials, and core manufacturing processes. Among the options under consideration are new compute architectures, different materials, including thinner barrier layers and those with higher th... » read more

Ultrafast Optical Chirality Logic Gates (Aalto University)


A technical paper titled "Chirality logic gates" was published by researchers at Aalto University (Finland), National Center for Nanoscience and Technology (Beijing), and University of Cambridge. Abstract (partial) "The ever-growing demand for faster and more efficient data transfer and processing has brought optical computation strategies to the forefront of research in next-generation com... » read more

Week In Review: Semiconductor Manufacturing, Test


Chinese memory chip maker YMTC and dozens of other Chinese entities are "at risk" of being added to a trade blacklist as soon as Dec. 6, a U.S. Commerce Department official said in prepared remarks seen by Reuters. SMIC co-CEO Zhao Haijun said on an earnings call that recent export controls from the United States will have an "adverse impact" on the company's production. The U.K. has rule... » read more

NAND and NOR logic-in-memory comprising silicon nanowire feedback field-effect transistors


Abstract: "The processing of large amounts of data requires a high energy efficiency and fast processing time for high-performance computing systems. However, conventional von Neumann computing systems have performance limitations because of bottlenecks in data movement between separated processing and memory hierarchy, which causes latency and high power consumption. To overcome this hindra... » read more

2022 Chip Forecast: Mixed Signals


Jim Feldhan, president of Semico Research, sat down with Semiconductor Engineering to talk about the outlook for the semiconductor market. SE: What was your final 2021 semiconductor forecast? What is your 2022 semiconductor forecast? Feldhan: For 2021, world semiconductor revenues totaled $558 billion and units totaled over 1.1 trillion units. In terms of growth rate, revenues increased 2... » read more

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