Signals In The Noise: Tackling High-Frequency IC Test


The need for high-frequency semiconductor devices is surging, fueled by growing demand for advanced telecommunications, faster sensors, and increasingly autonomous vehicles. The advent of millimeter-wave communication in 5G and 6G is pushing manufacturers to develop chips capable of handling frequencies that were once considered out of reach. However, while these technologies promise faster ... » read more

Achieving Zero Defect Manufacturing Part 3: Prevention Of Defects


The concept of zero defect manufacturing has been around for decades, arising first in the aerospace and defense industry. Since then, this manufacturing approach has been adopted by the automotive industry, and it has only grown in importance as the sector transitions to electric vehicles. Given the role semiconductors play in today’s vehicles, and will play in the future, it is no surprise ... » read more

Taking Data Center Serviceability To The Next Level


It is no secret that Artificial Intelligence (AI) workloads are driving an exponential growth in the scale of supercomputers and data centers. Training the latest LLM (Large Language Model), for instance, typically requires thousands of specialized processing cores running at full speed. As these models get more advanced with each generation, they need additional compute performance to absorb a... » read more

Defect Challenges Grow At The Wafer Edge


Reducing defects on the wafer edge, bevel, and backside is becoming essential as the complexity of developing leading-edge chips continue to increase, and where a single flaw can have costly repercussions that span multiple processes and multi-chip packages. This is made more difficult by the widespread rollout of such processes as hybrid bonding, which require pristine surfaces, and the gro... » read more

How The Semiconductor Ecosystem Is Responding To Its Global Challenges


The semiconductor industry is changing rapidly, with government support for re-shoring capacity creating new interplay among resources in Asia, the U.S., and Europe—even as the industry develops and sustains new technologies like HBM and heterogeneous integration. Geopolitical factors such as the CHIPS (Creating Helpful Incentives to Produce Semiconductors for America) Act, the scarcity of s... » read more

Promises and Perils of Parallel Test


Testing multiple devices at the same time is not providing the equivalent reduction in overall test time due to a combination of test execution issues, the complexity of the devices being tested, and the complex tradeoffs required for parallelism. Parallel testing is now the norm — from full wafer probe DRAM testing with thousands of dies to two-site testing for complex, high-performance c... » read more

Non-Destructive Measurement of Bottom Width in Deep Trench Isolation Structures using IRCD Metrology


As scaling in semiconductor devices continues, the aspect ratios of deep trench isolation (DTI) structures have increased. DTI structures are used in power devices, power management ICs and image sensors as a method to isolate active devices by reducing crosstalk, parasitic capacitance, latch-up and allowing for an increase breakdown voltage of active devices. Measurement of these structures in... » read more

CMP Process Characterization Using White Light Interferometry


Faster computer and electronic processors require smaller features for integrated circuits (IC), which in turn require smaller and smoother substrate surfaces. Chemical mechanical polishing (CMP) has become one of the most critical semiconductor fabrication technologies because it offers a superior means of removing unwanted topography in interlevel dielectric layers and achieving sufficient pl... » read more

Standardizing Defect Coverage In Analog/Mixed Signal Test


A newly drafted IEEE standard will bring more consistency to defect metrics in analog/mixed (AMS) designs, a long-overdue step that has become too difficult to ignore in the costly heterogeneous assemblies being deployed inside of data centers and mobile devices. Standardizing analog is no simple feat due to the legacy approach to AMS design, and this is not the first attempt at improving te... » read more

From Mobile Phones To Robotics: How The Industry Continues To Drive Innovation


I recently had the opportunity to host Pierre Cambou, Principal Analyst for Global Semiconductors at Yole Group, on the Advantest podcast. What struck me about our conversation was while we focused on what was going on in the mobile market, the entire talk was reflective of the cyclical nature of the semiconductor industry and how technology can drive intense cycles of innovation. As Pierre ... » read more

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