category: Top Stories

category: IoT, Security & Automotive

CXL Thriving As Memory Link
By Karen Heyman - 16 Sep, 2024 - Comments: 0

CXL is emerging from a jumble of interconnect standards as a predictable way to connect memory to various processing elements, as well as to share memory resources within a data center. Compute Express Link is built on a PCI Express foundation and supported by nearly all the major chip companies. It is used to link CPUs, GPUs, FPGAs, and other purpose-built accelerators using serial communic... » read more

Is PPA Relevant Today?
By Brian Bailey - 12 Sep, 2024 - Comments: 1

The optimization of power, performance, and area (PPA) has been at the core of chip design since the dawn of EDA, but these metrics are becoming less valuable without the context of how and where these chips will be used. Unlike in the past, however, that context now comes from factors outside of hardware development. And while PPA still serves as a useful proxy for many parts of the hardwar... » read more

Higher Density, More Data Create New Bottlenecks In AI Chips
By Adam Kovac - 12 Sep, 2024 - Comments: 0

Data movement is becoming a bigger problem at advanced nodes and in advanced packaging due to denser circuitry, more physical effects that can affect the integrity of signals or the devices themselves, and a significant increase in data from AI and machine learning. Just shrinking features in a design is no longer sufficient, given the scaling mismatch between SRAM-based L1 cache and digital... » read more

The Challenges Of Upgrading Lithium Batteries
By Bryon Moyer - 12 Sep, 2024 - Comments: 0

The ongoing electrification of everyday items has resulted in the proliferation of batteries, and spurred continued development for automotive and grid use. Lithium-ion batteries still dominate the rechargeable-battery landscape, with solid-state versions prolonging that position, but other lithium variants aim for greater safety while raising energy capacity. Battery researchers must balanc... » read more

Striking A Balance On Efficiency, Performance, And Cost
By Ed Sperling - 11 Sep, 2024 - Comments: 0

Experts at the Table: Semiconductor Engineering sat down to discuss power-related issues such as voltage droop, application-specific processing elements, the impact of physical effects in advanced packaging, and the benefits of backside power delivery, with Hans Yeager, senior principal engineer, architecture, at Tenstorrent; Joe Davis, senior director for Calibre interfaces and EM/IR product m... » read more

Defect Challenges Grow At The Wafer Edge
By Laura Peters - 10 Sep, 2024 - Comments: 0

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

Promises and Perils of Parallel Test
By Anne Meixner - 10 Sep, 2024 - Comments: 1

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

Standardizing Defect Coverage In Analog/Mixed Signal Test
By Gregory Haley - 10 Sep, 2024 - Comments: 0

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

Balancing Programmability And Performance In Cars
By Ann Mutschler - 05 Sep, 2024 - Comments: 0

The rate of change in the automotive industry is accelerating with the shift toward software-defined vehicles and ongoing advancements in algorithms and chip architectures. The challenge now is to figure out the best way to prevent rapid obsolescence, improve safety, and keep the cost of these changes to a minimum. Today, updatable automotive hardware is typically achieved through FPGAs, but... » read more

Photonics Could Reduce The Cost Of Lidar
By Karen Heyman - 05 Sep, 2024 - Comments: 0

Using light to move data over shorter distances is becoming more common, both because there is much more data to move around and because photons are faster and cooler than electrons. Using optical fiber for mission-critical communication is already well established. It has been the preferred PHY for long-haul communications for decades because it doesn’t suffer from the attenuation losses ... » read more

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