High Voltage Testing Races Ahead


Voltage requirements are increasing, especially for the EV market. Even devices that might be considered relatively low voltage, such as display drivers, are now pushing past established baselines. While working with high voltages is nothing new — many engineers can recall yellow caution tape in their workplaces — the sheer number and variety of new requirements have made testing at high... » read more

Manage Your Risk In RISC-V


Adoption of RISC-V processors is accelerating. This technology, like everything, comes with benefits and risks. The open standard means freedom for many developers, but success depends on the development of a support ecosystem around RISC-V. Industry collaboration is making broad adoption of RISC-V possible, and one example is the introduction of efficient trace for RISC-V cores. When incorp... » read more

Testability Analysis Based On Ever-Evolving Technology


The complexity of system-on-chip (SoC) designs continues to grow, so the corresponding design-for-test (DFT) logic required for manufacturing has become more advanced. Design teams are challenged by high gate counts and an array of internally developed and third-party IP integrated into their designs. Understanding if one can create high-quality manufacturing tests for these complex designs mus... » read more

Ensuring Your Semiconductor Test Equipment Is Protected From Rising Cybersecurity Threats


Cybersecurity threats pose risks to your business every day and can attack every aspect of your operation, and these threats are only increasing. According to IBM Security’s Cost of a Data Breach Report, in 2021, the average total cost of a data breach increased by nearly 10% year over year, from $3.86M to $4.24M – the largest single year cost increase in the last seven years. Sourc... » read more

Adding Differentiating Value And Reducing IP Integration Time for Your SoC


In the most efficient SoC design processes, semiconductor companies design their own, differentiated IP blocks, acquire high-quality third-party IP, configure it in an SoC-optimized way, and integrate all blocks into the SoC infrastructure of clocks, voltage supplies, on-chip buffer memories or registers, and test circuits. The SoC design team defines and drives the SoC-specific implementation ... » read more

A Customized Low-Cost Approach For S-Parameter Validation Of ATE Test Fixtures


This article summarizes the content of a paper jointly developed and presented by Advantest and Infineon at TestConX 2022. Device under test (DUT) fixtures for ATE systems pose several verification challenges. Users need to measure the DUT test fixture quickly and easily, while making sure the measurements mimic the ATE-to-test-fixture interface performance and determining how to handle DUT ... » read more

Packetized Scan Test


Bus-based packetized scan data decouples test delivery and core-level DFT requirements so core-level compression configuration can be defined completely independently of chip I/O limitations. Grouping cores for concurrent testing is selected programmatically, not hard-wired. This concept dramatically reduces the DFT planning and implementation effort. The Siemens solution for packetized deli... » read more

Next Steps For Improving Yield


Chipmakers are ramping new tools and methodologies to achieve sufficient yield faster, despite smaller device dimensions, a growing number of systematic defects, immense data volumes, and massive competitive pressure. Whether a 3nm process is ramping, or a 28nm process is being tuned, the focus is on reducing defectivity. The challenge is to rapidly identify indicators that can improve yield... » read more

Heterogeneous Integration: Correcting Overlay Errors On Advanced Integrated Circuit Substrates (AICS)


By John Chang, with Corey Shay, James Webb, and Timothy Chang For high-performance computing, artificial intelligence, and data centers, the path ahead is certain, but with it comes a change in substrate format and processing requirements. Instead of relying on the quest for the next technology node to bring about future device performance gains, manufacturers are charting a future based inc... » read more

Legacy Tools, New Tricks: Optical 3D Inspection


Stacking chips is making it far more difficult to find existing and latent defects, and to check for things like die shift, leftover particles from other processes, co-planarity of bumps, and adhesion of different materials such as dielectrics. There are several main problems: Not everything is visible from a single angle, particularly when vertical structures are used; Various struc... » read more

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