RESISTIVE MEMORY HAVING RECTIFYING CHARACTERISTICS OR AN OHMIC CONTACT LAYER
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United States of America Patent
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Issued Date -
Aug 22, 2013
app pub date -
Oct 25, 2011
filing date -
Oct 26, 2010
priority date (Note) -
Abandoned
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Abstract
Disclosed is a resistive memory simultaneously having rectifying characteristics and resistive characteristics according to a bias direction, wherein a resistive diode is interposed between electrodes at the top and bottom thereof. The resistive diode has a form in which a p-type resistive semiconductor layer is bonded to an n-type resistive semiconductor layer. When a high reverse bias is applied to the resistive diode, the resistive diode forms a conductive filament. When a forward bias is applied thereafter, a reset that destroys a portion of the formed conductive filament occurs, and as a result, a high resistance state is formed. Additionally, when a reverse bias is applied again, a set operation regenerating a conductive filament occurs. Thus, a low resistance state is achieved. Moreover, in order to achieve a resistive semiconductor layer and ohmic contact, and suppress the formation of a Schottky barrier, an ohmic contact layer is formed on the resistive diode. The present invention enables each memory cell to read information without misreading said information, even at a low readout voltage, and reduces the driving power required for a memory structure, such that a high-capacity and high-density memory is produced, and complexity and high costs of manufacturing processes may be avoided.
First Claim
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- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
Patent Owner | Address | |
---|---|---|
INDUSTRY-UNIVERSITY COOPERATION FOUNDATION HANYANG UNIVERSITY | C/O HANYANG UNIVERSITY 222 WANGSIMNI-RO SEONEDONG-GU SEOUL 04763 |
International Classification(s)
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
Bae, Yoon Cheol | Gyeongsangnam-do, KR | 2 | 11 |
Hong, Jin Pyo | Seoul, KR | 23 | 54 |
Kwak, June Sik | Gyeonggi-do, KR | 6 | 22 |
Lee, An Rahm | Gyeongsangnam-do, KR | 1 | 8 |
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11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Feb 22, 2025 |
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Surcharge - 11.5 year - Late payment within 6 months | $160.00 | $80.00 | $40.00 |
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