Keeping The Whole Package Cool


Heat dissipation is a critical issue for designers of complex chip-stacking and system-in-package devices. The amount of heat generated by a device increases as the number of transistors goes up, but the ability to dissipate the heat depends on the package surface area. Because the goal of 3D packaging is to squeeze more transistors into less overall space, new heat dissipation issues are em... » read more

Analyzing The Integrity Of Power


Power analysis is shifting much earlier in the chip design process, with power emerging as the top design constraint at advanced process nodes. As engineering teams pack more functionality and content into bigger and more complex chips, they are having to deal with more complex interactions that affect everything from power to its impact on signal integrity and long-term reliability. That, i... » read more

Pain Points At 7nm


Early work has begun on 7nm. Process technology has progressed to the point where IP and tools are being qualified. There is still a long way to go. But as companies begin engaging with foundries on this process node—[getentity id="22586" comment="TSMC"] is talking publicly about it, but [getentity id="22846" e_name="Intel"], [getentity id="22819" comment="GlobalFoundries"] and [getentity ... » read more

Predictions For 2016: Semiconductors, Manufacturing And Design


Seventeen companies sent in their predictions for this year with some of them sending predictions from several people. This is in addition to the CEO predictions that were recently published. That is a fine crop of views for the coming year, especially since they know that they will be held accountable for their views and this year, just like the last, they will have to answer for them. We beli... » read more

Thinking Outside The Chip


Intel will begin adding 2.5D and 3D packaging into its processors, following the lead set by IBM and AMD in recognizing that new packaging approaches are essential for improving performance and lowering power. This shift won't derail the semiconductor industry's efforts to the reach future process nodes or continually shrink features, but it does add context for other factors that in... » 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

Rethinking Memory


Getting data in and out of memory is as important as the speed and efficiency of a processor, but for years design teams managed to skirt the issue because it was quicker, easier and less expensive to boost processor clock frequencies with a brute-force approach. That worked well enough prior to 90nm, and adding more cores at lower clock speeds filled the gap starting at 65nm. After that, th... » read more

Reflections On 2015


It is easy to make predictions, but few people can make them with any degree of accuracy. Most of the time, those predictions are forgotten by the end of the year and there is no one to do a tally of who holds more credibility for next year. Not so with Semiconductor Engineering. We like to hold people's feet to the fire, but while the "Pants-On-Fire" meter may be applicable to politicians, we ... » read more

System-Aware Full-Chip Power Integrity And Reliability


At the core of every electronics system is a chip that has to meet multiple conflicting requirements such as increased functionality, best power efficiency, highest reliability, lowest design cost and short design schedule. Meeting these requirements poses a major challenge, especially for systems on chip (SoCs) that are designed using advanced processes. Ensuring that the SoCs meet power an... » read more

Accurate Thermal Analysis, Including Thermal Coupling Of On-Chip Hot Interconnect


Driven by rapid advancement in mobile/server computing and automotive/communications, SoCs are experiencing a fast pace of functional integration along with technology scaling. Advanced low power techniques are widely used, while meeting higher performance requirements using a variety of packaging technologies. The Internet of Things (IoT) is further opening up new applications with connected d... » read more

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