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NAND Flash Memory is on a Roll—Here’s Why! (.PDF Download)

Feb. 28, 2019
NAND Flash Memory is on a Roll—Here’s Why! (.PDF Download)

Nonvolatile flash memory dates back over two decades. Invented in 1994, the first application for flash memory was replacing audio tape in a phone answering machine. Digital film and cassette tapes were other early casualties of the new technology.

The first devices used a NOR structure with random-access capability. NAND flash, although slower, offered lower cost per bit and has replaced NOR technology in almost all applications. In 2019, a broad range of products uses high-density NAND flash storage—Figure 1 shows a sampling—and the technology shows no signs of slowing down.  

1. From individual devices to end applications, NAND flash memory is ubiquitous. (Source:  Seoul National University/Google)

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