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is Coming to Korea - Korea IT Times

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University<br />

Expect<br />

The Unexpected<br />

SNU research team led by<br />

Professor Park Byung-gook presents something innovative<br />

Technologies are universal, both<br />

by nature and by name, mostly in<br />

abbreviated form. Throw out<br />

"cell phone", "computer" or "telev<strong>is</strong>ion"<br />

anywhere and chances are you will not be<br />

alienated. But Cone SONOS flash memory?<br />

For th<strong>is</strong> rare technology, we are at<br />

once baffled by its idiosyncratic term.<br />

<strong>Korea</strong>n research team from Seoul<br />

National University (SNU) invented<br />

'NOR Flash Memory' that processes data<br />

faster by ten times for the first in the world.<br />

The research team led by Professor Park<br />

Byung-gook made it all the more possible<br />

for next-generation digital devices <strong>to</strong> be<br />

faster because NOR flash memory can be<br />

housed in<strong>to</strong> cell phones, smart phones,<br />

TVs, and other gadgets.<br />

Professor Park and h<strong>is</strong> team invented a<br />

cone-shaped NOR flash memory instead<br />

of the original, flat shaped, hence, breaking<br />

the norm. They announced on January 20<br />

that they succeeded in developing another<br />

flash memory that has relevant speed and<br />

data s<strong>to</strong>rage that of NAND.<br />

NOR has been commonly used in cell<br />

phones for they are fast in processing<br />

memory s<strong>to</strong>rage. NOR and NAND <strong>is</strong> divided<br />

by their circuit type and shape; unlike<br />

DRAM, they are able <strong>to</strong> continue<br />

s<strong>to</strong>ring information even after the power <strong>is</strong><br />

turned off. Nonetheless, the former flatshaped<br />

NOR was often criticized for its inefficiency<br />

because of low accumulation<br />

Cone SONOS flash memory<br />

and low capacity.<br />

SNU research team significantly improved<br />

information record and deleting<br />

rate by extending the memory channel <strong>to</strong> a<br />

cone-shaped and stretching the travel d<strong>is</strong>tance<br />

of electrons. And by cutting the<br />

NOR's area by one fifth, they achieved in<br />

boosting its accumulation rate <strong>to</strong> the level<br />

and speed of NAND. All in all, SNU research<br />

team <strong>is</strong> applauded for the possibility<br />

of entering the consumer's market of<br />

selling NOR flash memory the size of<br />

32GB.<br />

"Th<strong>is</strong> current technology based off of<br />

changing the entire shape of NOR has allowed<br />

procuring the most innovative technology,"<br />

said Professor Park.<br />

Such research result has already been<br />

uploaded on the recent IEEE Electron<br />

Device Letters and <strong>is</strong> in the process of obtaining<br />

a patent both domestic and in the<br />

U.S.<br />

Bang Jung-hyun / jbang@koreaittimes.com<br />

www.koreaittimes.com 47

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