Multi-bit multi-level non-volatile memory device and methods of operating and fabricating the same
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United States of America Patent
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Oct 13, 2009
Grant Date -
Nov 9, 2006
app pub date -
Apr 19, 2006
filing date -
May 6, 2005
priority date (Note) -
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Abstract
In a non-volatile memory device allowing multi-bit and/or multi-level operations, and methods of operating and fabricating the same, the non-volatile memory device comprises, in one embodiment: a semiconductor substrate, doped with impurities of a first conductivity type, which has one or more fins defined by at least two separate trenches formed in the substrate, the fins extending along the substrate in a first direction; pairs of gate electrodes formed as spacers at sidewalls of the fins, wherein the gate electrodes are insulated from the semiconductor substrate including the fins and extend parallel to the fins; storage nodes between the gate electrodes and the fins, and insulated from the gate electrodes and the semiconductor substrate; source regions and drain regions, which are doped with impurities of a second conductivity type, and are separately formed at least at surface portions of the fins and extend across the first direction of the fins; and channel regions corresponding to the respective gate electrodes, formed at least at surface regions of the sidewalls of the fins between the source and the drain regions.
First Claim
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- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
- SAMSUNG ELECTRONICS CO., LTD.
International Classification(s)
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
Cho, Eun-suk | Suwon-si , KR | 30 | 729 |
Cho, Hye-jin | Seongnam-si , KR | 35 | 617 |
Choi, Byung-yong | Suwon-si , KR | 28 | 441 |
Kim, Tae-yong | Suwon-si , KR | 153 | 3180 |
Lee, Choong-ho | Seongnam-si , KR | 167 | 2572 |
Park, Dong-gun | Seongnam-si , KR | 163 | 2971 |
Sung, Suk-kang | Seongnam-si , KR | 17 | 101 |
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Surcharge after expiration - Late payment is unavoidable | $700.00 | $350.00 | $175.00 |
Surcharge after expiration - Late payment is unintentional | $1,640.00 | $820.00 | $410.00 |
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