tag: high-bandwidth memory

Memory Choices Grow
By Ed Sperling - 24 Nov, 2015 - Comments: 1

Memory is becoming one of the starting points for SoC architectures, evolving from a basic checklist item that was almost always in the shadow of improving processor performance or lowering the overall power budget. In conjunction with that shift, chipmakers must now grapple with many more front-end decisions about placement, memory type and access prioritization. There are plenty of rules ... » read more

Why Packaging Matters
By Ed Sperling - 19 Nov, 2015 - Comments: 1

The semiconductor package is changing. What was until very recently considered an afterthought is now becoming a key part of the design process at all major chipmakers, and a critical factor in the extension of Moore's Law. This is a sharp reversal of what was almost universally an afterthought in planar silicon design and manufacturing. Rarely was the package an integral part of the archite... » read more

Is The 2.5D Supply Chain Ready?
By Ed Sperling - 28 Sep, 2015 - Comments: 0

A handful of big semiconductor companies began taking the wraps off 2.5D and fan-out packaging plans in the past couple of weeks, setting the stage for the first major shift away from Moore's Law in 50 years. Those moves coincide with reports of commercial [getkc id="82" kc_name="2.5D"] chips from chip assemblers and foundries that are now under development. There have been indications for... » read more

Advanced IC Packaging Biz Heats Up
By Mark LaPedus - 20 Aug, 2015 - Comments: 0

After a number of false starts and lackluster adoption, the advanced IC packaging market is finally heating up. On one front, for example, a new wave of chips based on advanced [getkc id="82" kc_name="2.5D"]/[getkc id="42" kc_name="3D"] stacked-die is entering the market. And on another front, the momentum is building for new and advanced 2D packages, such as embedded package-on-package (PoP... » read more

2.5D Creeps Into SoC Designs
By Ed Sperling - 13 Aug, 2015 - Comments: 0

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 Memory And Storage Hierarchy
By Loren Shalinsky - 13 Aug, 2015 - Comments: 0

The memory and storage hierarchy is a useful way of thinking about computer systems, and the dizzying array of memory options available to the system designer. Many different parameters characterize the memory solution. Among them are latency (how long the CPU needs to wait before the first data is available) and bandwidth (how fast additional data can be “streamed” after the first data poi... » read more

What Will 7nm And 5nm Look Like?
By Mark LaPedus - 23 Jul, 2015 - Comments: 0

Citing an assortment of undisclosed manufacturing issues, Intel in July pushed out the introduction of its 10nm chip and process technology to the second half of 2017. This is roughly six or more months later than expected. With the delay at 10nm, [getentity id="22846" e_name="Intel"] also pushed out its process cadence from 2 to 2.5 years. Other foundries, meanwhile, are struggling to keep ... » read more

Moore Memory Problems
By Brian Bailey - 09 Jul, 2015 - Comments: 0

The six-transistor static memory cell (SRAM) has been the mainstay of on-chip memory for several decades and has stood the test of time. Today, many advanced SoCs have 50% of the chip area covered with these memories and so they are critical to continued scaling. “The SRAM being used in modern systems is similar to the SRAM they were using in the 1970s and 1980s,” says Duncan Bremner, ch... » read more

Rethinking Power
By Ed Sperling - 14 May, 2015 - Comments: 0

Power typically has been the last factor to be considered in the PPA equation, and it usually was somebody else's problem. Increasingly it's everyone's problem, and EDA companies are beginning to look at power differently than in the past. While the driving forces vary by market and by process node, the need to save energy at every node and in almost all designs is pervasive. In the server m... » read more

Accelerating Development For LP
By Brian Bailey - 14 May, 2015 - Comments: 0

Power is a limiting factor in all devices these days, and while most of the industry has seen this coming for several process nodes and a succession of mobile devices with limited battery life, the power problem remains a work in progress. No matter how much progress is made—and there has been plenty of work done in the areas of multiple power domains, dark silicon, dynamic voltage and fr... » read more

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