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176-layer 3D NAND flash memory for performance gains

Intel / Altera | 21/11/2020

176-layer 3D NAND flash memory for performance gains
 

 

Micron Technology has begun volume shipments of its 176-layer 3D NAND flash memory, achieving density and performance. Together, Micron’s new 176-layer technology and advanced architecture enables gains in application performance across a range of storage use cases spanning data centre, intelligent edge and mobile devices.
 
“Micron’s 176-layer NAND sets a new bar for the industry, with a layer count that is almost 40% higher than our nearest competitor’s,” said Executive Vice President of technology and products at Micron. “Combined with Micron’s CMOS-under-array architecture, this technology sustains Micron’s industry cost leadership.”This allows them to produce more efficient products.
 
Representing Micron’s fifth generation of 3D NAND and second-generation replacement-gate architecture, Micron’s 176-layer NAND is the company’s most technologically advanced NAND node. Compared with the company’s previous generation of high-volume 3D NAND, Micron’s 176-layer NAND improves both read latency and write latency by more than 35% — dramatically accelerating application performance.The advantages of such an upgrade are huge, making the entire industry profitable. Micron’s 176-layer NAND’s compact design is suited for solutions using small form factors.
 
“Micron’s 176-layer NAND enables breakthrough product innovation for our customers,” said from Executive Vice President and Chief Business Officer at Micron. “We are deploying this technology across our broad product portfolio to bring value everywhere NAND is used, targeting growth opportunities in 5G, AI, cloud and the intelligent edge.”
 
With its versatile design and density, Micron’s 176-layer NAND serves as a building block in technologists’ toolboxes across a broad array of sectors, including mobile storage, autonomous systems, in-vehicle infotainment, and client and data centre solid-state drives (SSDs).
 
Micron’s 176-layer NAND offers improved quality of service (QoS), a critical design criterion for data centre SSDs. This can accelerate data-intensive environments and workloads such as data lakes, artificial intelligence (AI) engines and big data analytics. For 5G smartphones, the enhanced QoS can enable faster launching and switching across multiple apps, creating a more seamless and responsive mobile experience and enabling true multitasking and full use of 5G’s low-latency network.
 
Micron’s fifth generation of 3D NAND also features a maximum data transfer rate at 1,600 megatransfers per second (MT/s) on the Open NAND Flash Interface (ONFI) bus. The increased ONFI speed leads to faster system bootup and application performance. In automotive applications, This level of speed will greatly improve the user experience, and near-instant response speeds will also result in significant upgrades to most in-car systems as soon as engines are turned on.
 
With the slowing of Moore’s Law, Micron’s innovation in 3D NAND hopes to ensure that the industry can keep pace with growing data requirements. Micron has combined its stacked replacement-gate architecture, novel charge-trap and CMOS-under-array (CuA)5 techniques. Micron’s team of 3D NAND experts achieved rapid advancements with the company’s proprietary CuA technique, which constructs the multilayered stack over the chip’s logic — packing more memory into a tighter space and substantially shrinking the 176-layer NAND’s die size, yielding more gigabytes per wafer.
 
In tandem, Micron has improved scalability and performance for future NAND generations by transitioning its NAND cell technology from legacy floating gate to charge-trap. This charge-trap technology is combined with Micron’s replacement-gate architecture, which uses highly conductive metal wordlines instead of a silicon layer to achieve unparalleled 3D NAND performance.
 
Micron’s 176-layer triple-level cell 3D NAND is in volume production in Micron’s Singapore fab and now shipping to customers, including through its Crucial consumer SSD product lines. The company is expected to launch new products with the technology in 2021, leaving consumers waiting to see.

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