tag: LPDDR

LPDDR5X Opening New Markets For Low-Power DRAMs
By Shyam Sharma - 11 Apr, 2024 - Comments: 0

Low-power DDR SDRAM has been one of the most widely used memories in the semiconductor market. This blog post talks about the evolutions of LPDDR DRAMs leading to the latest published standard of LPDDR5/5X. We also look at some of the traditional markets for LPDDR devices and how LPDDR5X is opening new specialized markets for the LPDDR DRAMs. History of LPDDR devices The first LPDDR standard,... » read more

The Implications Of AI Everywhere: From Data Center To Edge
By Emma-Jane Crozier - 14 Mar, 2024 - Comments: 0

Generative AI has upped the ante on the transformative force of AI, driving profound implications across all aspects of our everyday lives. Over the past year, we have seen AI capabilities placed firmly in the hands of consumers. The recent news and product announcements emerging from MWC 2024 highlighted what we can expect to see from the next wave of generative AI applications. AI will be eve... » read more

Memory’s Future Hinges On Reliability
By Karen Heyman - 14 Feb, 2024 - Comments: 0

Experts at the Table: Semiconductor Engineering sat down to talk about the impact of power and heat on off-chip memory, and what can be done to optimize performance, with Frank Ferro, group director, product management at Cadence; Steven Woo, fellow and distinguished inventor at Rambus; Jongsin Yun, memory technologist at Siemens EDA; Randy White, memory solutions program manager at Keysight; a... » read more

DRAM Test And Inspection Just Gets Tougher
By Anne Meixner - 07 Nov, 2023 - Comments: 0

DRAM manufacturers continue to demand cost-effective solutions for screening and process improvement amid growing concerns over defects and process variability, but meeting that demand is becoming much more difficult with the rollout of faster interfaces and multi-chip packages. DRAM plays a key role in a wide variety of electronic devices, from phones and PCs to ECUs in cars and servers ins... » read more

Sweeping Changes For Leading-Edge Chip Architectures
By Ed Sperling - 08 Sep, 2023 - Comments: 0

Chipmakers are utilizing both evolutionary and revolutionary technologies to achieve orders of magnitude improvements in performance at the same or lower power, signaling a fundamental shift from manufacturing-driven designs to those driven by semiconductor architects. In the past, most chips contained one or two leading-edge technologies, mostly to keep pace with the expected improvements i... » read more

LPDDR5X: High Bandwidth, Power Efficient Performance For Mobile & Beyond
By Vinitha Seevaratnam - 08 Jun, 2023 - Comments: 0

Looking back over recent history in the memory landscape, we can clearly see a trend of new applications growing sufficiently large enough to command the creation of new memory technologies tailored to their specific needs. We saw this with the creation of GDDR for graphics and later HBM for AI/ML applications. Low-Power Double Data Rate (LPDDR) emerged as a specialized memory designed for mobi... » read more

Choosing The Correct High-Bandwidth Memory
By Ann Mutschler - 25 Jan, 2023 - Comments: 0

The number of options for how to build high-performance chips is growing, but the choices for attached memory have barely budged. To achieve maximum performance in automotive, consumer, and hyperscale computing, the choices come down to one or more flavors of DRAM, and the biggest tradeoff is cost versus speed. DRAM remains an essential component in any of these architectures, despite years ... » read more

How Memory Design Optimizes System Performance
By John Koon - 21 Sep, 2022 - Comments: 0

Exponential increases in data and demand for improved performance to process that data has spawned a variety of new approaches to processor design and packaging, but it also is driving big changes on the memory side. While the underlying technology still looks very familiar, the real shift is in the way those memories are connected to processing elements and various components within a syste... » read more

More Errors, More Correction in Memories
By Bryon Moyer - 09 Nov, 2021 - Comments: 1

As memory bit cells of any type become smaller, bit error rates increase due to lower margins and process variation. This can be dealt with using error correction to account for and correct bit errors, but as more sophisticated error-correction codes (ECC) are used, it requires more silicon area, which in turn drives up the cost. Given this trend, the looming question is whether the cost of ... » read more

What Designers Need to Know About Error Correction Code (ECC) In DDR Memories
By Vadhiraj Sankaranarayanan - 10 Dec, 2020 - Comments: 2

As with any electronic system, errors in the memory subsystem are possible due to design failures/defects or electrical noise in any one of the components. These errors are classified as either hard-errors (caused by design failures) or soft-errors (caused by system noise or memory array bit flips due to alpha particles, etc.). To handle these memory errors during runtime, the memory subsyst... » read more

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