Coherency, Cache And Configurability


Coherency is gaining traction across a wide spectrum of applications as systems vendors begin leveraging heterogeneous computing to improve performance, minimize power, and simplify software development. Coherency is not a new concept, but making it easier to apply has always been a challenge. This is why it has largely been relegated to CPUs with identical processor cores. But the approach ... » read more

Transistor-Level Verification Returns


A few decades ago, all designers did transistor-level verification, but they were quite happy to say goodbye to it when standard cells provided isolation at the gate-level and libraries provided all of the detailed information required, such as timing. A few dedicated people continued to use the technology to provide those models and libraries and the most aggressive designs that wanted to stri... » read more

Executive Insight: Sehat Sutardja


Sehat Sutardja, chairman and CEO of Marvell, sat down with Semiconductor Engineering to talk about new approaches for design and memory and why costs and time to market are forcing changes in Moore's Law. What follows are excerpts of that conversation. SE: What was behind your move into modular packaging? Sutardja: The cost of building chips is getting out of hand. As we make things more ... » read more

Overcoming The Design Bottleneck


SoCs control most advanced electronics these days and functionality, quality, power and security are a combination of both hardware and software. All throughout the development of today's complex systems, the memory hierarchy has remained the same—preserving the notion of a continuous computing paradigm. Today, that decision is leading to performance and power issues. There are several rea... » read more

2.5D Creeps Into SoC Designs


A decade ago top chipmakers predicted that the next frontier for SoC architectures would be the z axis, adding a third dimension to improve throughput and performance, reduce congestion around memories, and reduce the amount of energy needed to drive signals. The obvious market for this was applications processors for mobile devices, and the first companies to jump on the stacked die bandwag... » read more

The Interconnect Bottleneck


With communications playing a crucial role in the design and performance of multi-core SoCs, various interconnect structures have been proposed as promising solutions to simplify and optimize SoC design. However, sometimes things don’t go as planned and the interconnect becomes the bottleneck. “Under high utilization cases the DRAM will be over-constrained with requests from all the a... » read more

Extending The Hardmask


In chip production, the backend-of-the-line (BEOL) is where the critical interconnects are formed within a device. Interconnects—those tiny wiring schemes in devices—are becoming more compact at each node. This, in turn, is causing a degradation in performance and an increase in the resistance-capacitance (RC) delay in chips. “The scaling roadblocks that the interconnect faces need to ... » read more

The Week In Review: Design


Tools eSilicon uncorked a GDSII online quote system for TSMC, which allows chipmakers to pick a variety of information ranging from process technology to package to yield and tapeout and production forecast and get a quote within minutes. This is a new twist in the value chain provider market. Synopsys added program to speed up FPGA-based prototype creation, which includes approved third-pa... » read more

Locking Down The Chip


The crypto processor is poised to break into the mainstream SoC world. Lower costs for manufacturing, coupled with rising security concerns from increased connectivity and growing complexity have cracked open the door on this approach to locking down a chip. Crypto processors aren’t a new concept, but they generally have been reserved for high-end applications. Until recently, they have ju... » read more

Manufacturing Bits: June 3


World’s thinnest TFTs The U.S. Department of Energy’s Argonne National Laboratory has devised the world’s thinnest flexible, 2D thin-film transistors (TFTs). The transistors are just 10 atomic layers thick. TFTs are typically used in screens and displays. In the lab, Argonne researchers fabricated the TFTs on both a conventional silicon platform and a flexible substrate. [caption i... » read more

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