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公开(公告)号:US10312342B2
公开(公告)日:2019-06-04
申请号:US15695440
申请日:2017-09-05
Applicant: Purdue Research Foundation
Inventor: Muhammad Ashraful Alam , Muhammad Masuduzzaman , Ankit Jain
IPC: G01L9/00 , H01L21/00 , H01L29/51 , H01L29/78 , H01L27/11502 , H01L27/11585 , B81B7/02 , H01G4/38 , H01L27/08 , H01G5/16 , H01G5/40 , H01G7/06
Abstract: An electrical circuit comprising at least two negative capacitance insulators connected in series, one of the two negative capacitance insulators is biased to generate a negative capacitance. One of the negative capacitance insulators may include an air-gap which is part of a nanoelectromechnical system (NEMS) device and the second negative capacitance insulator includes a ferroelectric material. Both of the negative capacitance insulators may be located between the channel and gate of a field effect transistor. The NEMS device may include a movable electrode, a dielectric and a fixed electrode and arranged so that the movable electrode is attached to at least two points and spaced apart from the dielectric and fixed electrode, and the ferroelectric capacitor is electrically connected to either of the electrodes.
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公开(公告)号:US20160207761A1
公开(公告)日:2016-07-21
申请号:US14701502
申请日:2015-04-30
Applicant: Purdue Research Foundation
Inventor: Muhammad Ashraful Alam , Muhammad Masuduzzaman , Ankit Jain
CPC classification number: H01L29/515 , B81B7/02 , B81B2201/014 , B81B2201/016 , B81B2201/07 , H01G4/38 , H01G5/16 , H01G5/40 , H01G7/06 , H01L27/0805 , H01L27/11502 , H01L27/11585 , H01L29/516 , H01L29/7842
Abstract: An electrical circuit comprising at least two negative capacitance insulators connected in series, one of the two negative capacitance insulators is biased to generate a negative capacitance. One of the negative capacitance insulators may include an air-gap which is part of a nanoelectromechnical system (NEMS) device and the second negative capacitance insulator includes a ferroelectric material. Both of the negative capacitance insulators may be located between the channel and gate of a field effect transistor. The NEMS device may include a movable electrode, a dielectric and a fixed electrode and arranged so that the movable electrode is attached to at least two points and spaced apart from the dielectric and fixed electrode, and the ferroelectric capacitor is electrically connected to either of the electrodes.
Abstract translation: 包括串联连接的至少两个负电容绝缘体的电路,两个负电容绝缘体之一被偏置以产生负电容。 负电容绝缘体中的一个可以包括作为纳米电子技术系统(NEMS)器件的一部分的气隙,并且第二负电容绝缘体包括铁电材料。 负电容绝缘体都可以位于场效应晶体管的沟道和栅极之间。 NEMS装置可以包括可动电极,电介质和固定电极,并且布置成使得可动电极附接到至少两个点并且与电介质和固定电极间隔开,并且铁电电容器电连接到 电极。
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公开(公告)号:US09755041B2
公开(公告)日:2017-09-05
申请号:US14701502
申请日:2015-04-30
Applicant: Purdue Research Foundation
Inventor: Muhammad Ashraful Alam , Muhammad Masuduzzaman , Ankit Jain
IPC: G01L9/00 , H01L21/00 , H01L29/51 , H01L29/78 , H01L27/11502 , H01L27/11585 , B81B7/02 , H01G4/38 , H01L27/08 , H01G5/16 , H01G5/40 , H01G7/06 , H01L49/02
CPC classification number: H01L29/515 , B81B7/02 , B81B2201/014 , B81B2201/016 , B81B2201/07 , H01G4/38 , H01G5/16 , H01G5/40 , H01G7/06 , H01L27/0805 , H01L27/11502 , H01L27/11585 , H01L29/516 , H01L29/7842
Abstract: An electrical circuit comprising at least two negative capacitance insulators connected in series, one of the two negative capacitance insulators is biased to generate a negative capacitance. One of the negative capacitance insulators may include an air-gap which is part of a nanoelectromechnical system (NEMS) device and the second negative capacitance insulator includes a ferroelectric material. Both of the negative capacitance insulators may be located between the channel and gate of a field effect transistor. The NEMS device may include a movable electrode, a dielectric and a fixed electrode and arranged so that the movable electrode is attached to at least two points and spaced apart from the dielectric and fixed electrode, and the ferroelectric capacitor is electrically connected to either of the electrodes.
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公开(公告)号:US20160379702A1
公开(公告)日:2016-12-29
申请号:US15263328
申请日:2016-09-12
Applicant: Purdue Research Foundation
Inventor: Muhammad Ashraful Alam , Muhammad Masuduzzaman
IPC: G11C11/22
CPC classification number: G11C11/225 , G11C7/04
Abstract: A method and apparatus for increasing the lifetime of ferroelectric devices is presented. The method includes applying a waveform to the input pulse to increase the rise or fall time of the pulse. The waveform may comprise a ramp, a step, or combinations of both. The waveform may be symmetrical with respect to the rising and falling edges of the pulses. A temperature control device may also be operatively connected to increase the temperature of the device to increase lifetime. In other embodiments, a resistance may be operatively connected in series with the ferroelectric device to increase lifetime.
Abstract translation: 介绍了一种提高铁电元件寿命的方法和装置。 该方法包括将波形应用于输入脉冲以增加脉冲的上升或下降时间。 波形可以包括斜坡,台阶或两者的组合。 波形可以相对于脉冲的上升沿和下降沿对称。 温度控制装置也可以可操作地连接以增加装置的温度以增加寿命。 在其他实施例中,电阻可以与铁电体器件串联可操作地连接以增加寿命。
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公开(公告)号:US20180012972A1
公开(公告)日:2018-01-11
申请号:US15695440
申请日:2017-09-05
Applicant: Purdue Research Foundation
Inventor: Muhammad Ashraful Alam , Muhammad Masuduzzaman , Ankit Jain
IPC: H01L29/51 , H01G7/06 , H01G4/38 , H01G5/40 , H01L27/08 , B81B7/02 , H01L29/78 , H01G5/16 , H01L49/02
CPC classification number: H01L29/515 , B81B7/02 , B81B2201/014 , B81B2201/016 , B81B2201/07 , H01G4/38 , H01G5/16 , H01G5/40 , H01G7/06 , H01L27/0805 , H01L27/11502 , H01L27/11585 , H01L29/516 , H01L29/7842
Abstract: An electrical circuit comprising at least two negative capacitance insulators connected in series, one of the two negative capacitance insulators is biased to generate a negative capacitance. One of the negative capacitance insulators may include an air-gap which is part of a nanoelectromechnical system (NEMS) device and the second negative capacitance insulator includes a ferroelectric material. Both of the negative capacitance insulators may be located between the channel and gate of a field effect transistor. The NEMS device may include a movable electrode, a dielectric and a fixed electrode and arranged so that the movable electrode is attached to at least two points and spaced apart from the dielectric and fixed electrode, and the ferroelectric capacitor is electrically connected to either of the electrodes.
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公开(公告)号:US20150124514A1
公开(公告)日:2015-05-07
申请号:US14533897
申请日:2014-11-05
Applicant: PURDUE RESEARCH FOUNDATION
Inventor: Muhammad Ashraful Alam , Muhammad Masuduzzaman
IPC: G11C11/22
CPC classification number: G11C11/225 , G11C7/04
Abstract: A method and apparatus for increasing the lifetime of ferroelectric devices is presented. The method includes applying a waveform to the input pulse to increase the rise or fall time of the pulse. The waveform may comprise a ramp, a step, or combinations of both. The waveform may be symmetrical with respect to the rising and falling edges of the pulses. A temperature control device may also be operatively connected to increase the temperature of the device to increase lifetime. In other embodiments, a resistance may be operatively connected in series with the ferroelectric device to increase lifetime.
Abstract translation: 介绍了一种提高铁电元件寿命的方法和装置。 该方法包括将波形应用于输入脉冲以增加脉冲的上升或下降时间。 波形可以包括斜坡,台阶或两者的组合。 波形可以相对于脉冲的上升沿和下降沿对称。 温度控制装置也可以可操作地连接以增加装置的温度以增加寿命。 在其他实施例中,电阻可以与铁电体器件串联可操作地连接以增加寿命。
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