Power-Aware Revolution In Automated Test For ICs


As semiconductor devices advance in complexity and sensitivity to power fluctuations, the integration of power-aware automatic test pattern generation (ATPG) is becoming indispensable for yield and the overall functionality of a chip. Unlike traditional ATPG, which generates test patterns solely to ensure device functionality, power-aware ATPG takes it a step further by meticulously consider... » read more

Speeding Up Metrology At Advanced Nodes


Experts at the Table: Semiconductor Engineering sat down to talk metrology at the most advanced nodes and the impact of using different substrates, 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 Onto Inn... » read more

3D Metrology Meets Its Match In 3D Chips And Packages


The pace of innovation in 3D device structures and packages is accelerating rapidly, driving the need for precise measurement and control of feature height to ensure these devices are reliable and perform as expected throughout their lifetimes. Expansion along the z axis is already well underway. One need look no further than the staircase-like 3D NAND stacks that rise like skyscrapers to p... » read more

Using Predictive Maintenance To Boost IC Manufacturing Efficiency


Predicting exactly how and when a process tool is going to fail is a complex task, but it's getting a tad easier with the rollout of smart sensors, standard interfaces, and advanced data analytics. The potential benefits of predictive maintenance are enormous. Higher tool uptime correlates with greater fab efficiency and lower operating costs, so engineers are pursuing multiple routes to boo... » read more

The Future Of Fault Coverage In Chips


Heterogeneous integration and sophisticated packaging are making chips more difficult to test, necessitating more versatile and efficient testing methods to minimize the time and cost it takes for each test insertion. In the past, test costs typically were limited to about 2% of the total cost of a chip. That cost has been rising in recent years, and with chiplets, advanced packaging, and mo... » read more

Doing More At Functional Test


Experts at the Table: Semiconductor Engineering sat down to discuss the increasing importance of functional test, especially in high-performance computing, with Klaus-Dieter Hilliges, V93000 platform extension manager at Advantest Europe; Robert Cavagnaro, fellow in the Design Engineering Group at Intel (responsible for manufacturing and test strategy of data center products); Nitza Basoco, tec... » read more

IC Test And Quality Requirements Drive New Collaboration


Rapidly increasing chip and package complexity, coupled with an incessant demand for more reliability, has triggered a frenzy of alliances and working relationships that are starting to redefine how chips are tested and monitored. At the core of this shift is a growing recognition that no company can do everything, and that to work together will require much tighter integration of flows, met... » read more

Progress In Wafer And Package Level Defect Inspection


The technology to enable sampling and the need for more metrology and inspection data in a production setting have aligned just in time to address the semiconductor industry’s newest and most complex manufacturing processes. In both wafer and assembly manufacturing, engineering teams have long relied on imaging tools to measure critical features and to inspect for defects after specific pr... » read more

New Strategies For Interpreting Data Variability


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

DTCO/STCO Create Path For Faster Yield Ramps


Higher density in planar SoCs and advanced packages, coupled with more complex interactions and dependencies between various components, are permitting systematic defects to escape traditional detection methods. These issues increasingly are not detected until the chips reach high-volume manufacturing, slowing the yield ramp and bumping up costs. To combat these problems, IDMs and systems co... » read more

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