Gregory Haley

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Gregory Haley is a technology editor at Semiconductor Engineering.

Author's Latest Posts

Predicting And Preventing Process Drift
By Gregory Haley - 22 Apr, 2024 - Comments: 0

Increasingly tight tolerances and rigorous demands for quality are forcing chipmakers and equipment manufacturers to ferret out minor process variances, which can create significant anomalies in device behavior and render a device non-functional. In the past, many of these variances were ignored. But for a growing number of applications, that's no longer possible. Even minor fluctuations in ... » read more

New Strategies For Interpreting Data Variability
By Gregory Haley - 09 Apr, 2024 - Comments: 0

Every measurement counts at the nanoscopic scale of modern semiconductor processes, but with each new process node the number of measurements and the need for accuracy escalate dramatically. Petabytes of new data are being generated and used in every aspect of the manufacturing process for informed decision-making, process optimization, and the continuous pursuit of quality and yield. Most f... » read more

Silicon Photonics Manufacturing Ramps Up
By Gregory Haley - 21 Mar, 2024 - Comments: 0

Circuit scaling is starting to hit a wall as the laws of physics clash with exponential increases in the volume of data, forcing chipmakers to take a much closer look at silicon photonics as a way of moving data from where it is collected to where it is processed and stored. The laws of physics are immutable. Put simply, there are limits to how fast an electron can travel through copper. The... » read more

AI/ML Challenges In Test and Metrology
By Gregory Haley - 12 Mar, 2024 - Comments: 0

The integration of artificial intelligence and machine learning (AI/ML) into semiconductor test and metrology is redefining the landscape for chip fabrication, which will be essential at advanced nodes and in increasingly dense advanced packages. Fabs today are inundated by vast amounts of data collected across multiple manufacturing processes, and AI/ML solutions are viewed as essential for... » read more

UCIe Goes Back To The Drawing Board
By Gregory Haley - 22 Feb, 2024 - Comments: 0

The integration of multiple dies within a single package increasingly is viewed as the next evolution for extending Moore’s Law, but it also presents myriad challenges — particularly in achieving a universally accepted standard integrating plug-and-play chiplets from different vendors. “In some respects, people are already doing this,” says Debendra Das Sharma, Intel senior fellow an... » read more

Hidden Costs And Tradeoffs In IC Quality
By Gregory Haley - 08 Feb, 2024 - Comments: 0

Balancing reliability against cost is becoming more difficult for semiconductor test, as chip complexity increases and devices become more domain-specific. Tests need to be efficient and effective without breaking the bank, while also ensuring chips are of sufficient quality for their specific application. The problem is that every new IC device adds its own set of challenges, from smaller f... » read more

Inspection, Metrology Issues In Advanced Packages
By Gregory Haley - 08 Feb, 2024 - Comments: 0

Experts at the Table: Semiconductor Engineering sat down to talk about how to inspect and measure smaller features across large areas in advanced packaging, with Frank Chen, director of applications and product management at Bruker Nano Surfaces & Metrology; John Hoffman, computer vision engineering manager at Nordson Test & Measurement; and Jiangtao Hu, senior technology director at O... » read more

Navigating Heat In Advanced Packaging
By Gregory Haley - 18 Jan, 2024 - Comments: 0

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

Glass Substrates Gain Foothold In Advanced Packages
By Gregory Haley - 09 Jan, 2024 - Comments: 2

Glass substrates are starting to gain traction in advanced packages, fueled by the potential for denser routing and higher signal performance than the organic substrates used today. There are still plenty of problems to solve before this approach becomes mainstream. While glass itself is cheap and shares some important physical similarities to silicon, there are challenges with buildup, stre... » read more

Closing The Test And Metrology Gap In 3D-IC Packages
By Gregory Haley - 12 Dec, 2023 - Comments: 0

The industry is investing in more precise and productive inspection and testing to enable advanced packages and eventually, 3D ICs. The next generations of aerospace, automotive, smartphone, and wearable tech most likely will be powered by multiple layers of intricately connected silicon, a stark departure from the planar landscapes of traditional integrated circuits. These 3D-ICs, compos... » read more

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