Moore Memory Problems


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


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


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

Stacked Die, Phase Two


The initial hype phase of [getkc id="82" kc_name="2.5D"] appears to be over. There are multiple offerings in development or on the market already from Xilinx, Altera, Cisco, Huawei, IBM, AMD, all focused on better throughput over shorter distances with better yield and lower power. Even Intel has jumped on the bandwagon, saying that 2.5D will be essential for extending [getkc id="74" comment="M... » read more

Partition Lines Growing Fuzzy


For as long as most semiconductor engineers can remember, chips with discrete functions started out on a printed circuit board, progressed into chip sets when it made sense and eventually were integrated onto the same die. The primary motivations behind this trend were performance and cost—shorter distance, fewer mask layers, less silicon. But this equation has been changing over the past ... » read more

2.5D Timetable Coming Into Focus


After years of empty promises, the timetable for [getkc id="82" kc_name="2.5D"] is coming into better focus. Large and midsize chipmakers are behind it, real silicon is being developed, and contracts are being signed. That doesn't mean all of the pieces are in place or that market uptake is at the neck of the hockey stick. And it certainly doesn't mean the semiconductor industry is going to ... » read more

Memory Directions Uncertain


Semiconductor Engineering sat down with a panel of experts to find out what is happening in world of memories. Taking part in the discussion are [getperson id="11073" comment="Charlie Cheng"], chief executive officer at [getentity id="22135" e_name="Kilopass Technology"]; Navraj Nandra, senior director of marketing for Analog/Mixed signal IP, embedded memories and logic libraries at [getentity ... » read more

Will There Be A DDR5?


DDR4 rollouts have begun. And in the DRAM world that begs the question, 'What comes next?' The answer isn't so obvious. While there have been suggestions inside of JEDEC — the Joint Electron Device Engineering Council, which has overseen the standards for double-data-rate synchronous DRAM — to develop a DDR5 standard, it's not the only solution being considered. And in the minds of some... » read more

Driving Memory Beyond DDR4


While attending recent technology trade shows, the Intel Developer’s Forum (IDF) in August and last week’s ARM TechCon, I participated in many interesting discussions around server performance, power consumption, memory bandwidth and capacity. The race to introduce higher-performing servers that consume less power is fueled by the growing demand for new applications in the enterprise, commu... » read more

Stacked Die Politics, Technology And Tools


The path to stacking die may look fairly straightforward, but reality is somewhat different. There is a battle raging between foundries and OSATs over who will actually stack and package the die. There is new technology being created that could change the economics of how these die go together. And there is debate about just how ready the tools are to make all of this happen. All of this is ... » read more

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