Ferroelectric polarization pattern with differing feedback signals
    4.
    发明授权
    Ferroelectric polarization pattern with differing feedback signals 有权
    具有不同反馈信号的铁电偏振模式

    公开(公告)号:US07792009B2

    公开(公告)日:2010-09-07

    申请号:US11865806

    申请日:2007-10-02

    IPC分类号: G11B7/00

    CPC分类号: G11B9/02 Y10S977/943

    摘要: A ferroelectric polarization pattern with differing feedback signals. An apparatus including a ferroelectric layer and a polarization pattern configured in the ferroelectric layer to represent position data. The polarization pattern has a first switchable polarization state domain and a second switchable polarization state domain that are both switchable by an applied signal. The first switchable polarization state domain has a first feedback signal in response to the applied signal that is different than a second feedback signal of the second switchable polarization state domain at the applied signal.

    摘要翻译: 具有不同反馈信号的铁电极化图案。 一种包括铁电层和在铁电体层中配置的表示位置数据的偏振图案的装置。 极化图案具有可由施加的信号切换的第一可切换偏振状态域和第二可切换偏振状态域。 第一可切换偏振态域具有响应于施加的信号的第一反馈信号,所施加的信号与施加的信号处的第二可切换偏振状态域的第二反馈信号不同。

    Ferroelectric Polarization Pattern With Differing Feedback Signals
    6.
    发明申请
    Ferroelectric Polarization Pattern With Differing Feedback Signals 有权
    具有不同反馈信号的铁电极化模式

    公开(公告)号:US20090086615A1

    公开(公告)日:2009-04-02

    申请号:US11865806

    申请日:2007-10-02

    IPC分类号: G11B3/70

    CPC分类号: G11B9/02 Y10S977/943

    摘要: A ferroelectric polarization pattern with differing feedback signals. An apparatus including a ferroelectric layer and a polarization pattern configured in the ferroelectric layer to represent position data. The polarization pattern has a first switchable polarization state domain and a second switchable polarization state domain that are both switchable by an applied signal. The first switchable polarization state domain has a first feedback signal in response to the applied signal that is different than a second feedback signal of the second switchable polarization state domain at the applied signal.

    摘要翻译: 具有不同反馈信号的铁电极化图案。 一种包括铁电层和在铁电体层中配置的表示位置数据的偏振图案的装置。 极化图案具有可由施加的信号切换的第一可切换偏振状态域和第二可切换偏振状态域。 第一可切换偏振态域具有响应于施加的信号的第一反馈信号,所施加的信号与施加的信号处的第二可切换偏振状态域的第二反馈信号不同。

    Multilayer ferroelectric data storage system with regenerative read
    9.
    发明授权
    Multilayer ferroelectric data storage system with regenerative read 有权
    具有再生读数的多层铁电数据存储系统

    公开(公告)号:US07821808B2

    公开(公告)日:2010-10-26

    申请号:US12363062

    申请日:2009-01-30

    IPC分类号: G11C11/22

    CPC分类号: G11C11/22

    摘要: A data storage system comprises first and second storage layers, a reader and a writer. The first storage layer has a first coercive potential and a first polarization. The second storage layer has a second coercive potential that is less than the first coercive potential, and a second polarization that is coupled to the first polarization. The writer performs a write operation in which a write potential is imposed across the first and second storage layers, such that the first coercive potential is exceeded across the first storage layer and the second coercive potential is exceeded across the second storage layer. The reader performs a read operation in which a read potential is imposed across the first and second storage layers, such that the second coercive potential is exceeded across the second storage layer and the first coercive potential is not exceeded across the first storage layer.

    摘要翻译: 数据存储系统包括第一和第二存储层,读取器和写入器。 第一存储层具有第一矫顽电位和第一极化。 第二存储层具有小于第一矫顽电位的第二矫顽电位和耦合到第一极化的第二极化。 写入器执行写入操作,其中在第一和第二存储层上施加写入电位,使得跨越第一存储层超过第一矫顽电位,并且超过第二存储层超过第二矫顽电位。 读取器执行其中在第一和第二存储层上施加读取电位的读取操作,使得跨越第二存储层超过第二矫顽电位,并且跨越第一存储层不超过第一矫顽电位。

    Voltage pattern for ferroelectric recording head
    10.
    发明授权
    Voltage pattern for ferroelectric recording head 有权
    铁电记录头的电压模式

    公开(公告)号:US08000215B2

    公开(公告)日:2011-08-16

    申请号:US12539880

    申请日:2009-08-12

    IPC分类号: G11B7/00

    CPC分类号: G11B9/02

    摘要: The presently disclosed technology teaches an improved voltage pattern for conductive tips utilized as moveable top electrodes for writing data bits into ferroelectric media. A conductive tip is dragged in contact or near contact with a ferroelectric surface forming a moveable top electrode on a ferroelectric media disk. A metallic film is deposited onto a bottom-side of the ferroelectric media forming a conductive bottom electrode. Applying electrical voltage pulses between the conductive tip and the bottom electrode induces polarization switching of the ferroelectric media under the head. The improved voltage pattern incorporates positive and negative overshoot voltages to induce a polarization switch in the ferroelectric media and positive and negative drag voltages to expand a polarized region on the ferroelectric media. Potential benefits of the improved voltage pattern include reduced cross-track blooming and reduced along-track blooming resulting in a more uniform track width and bit series length.

    摘要翻译: 目前公开的技术教导了用作用于将数据位写入铁电介质的可移动顶部电极的导电尖端的改进的电压图案。 导电尖端与形成铁电介质盘上的可移动顶部电极的铁电表面接触或接触接触。 金属膜沉积在形成导电底电极的铁电介质的底侧上。 在导电尖端和底部电极之间施加电压脉冲引起磁头下的铁电介质的极化转换。 改进的电压模式包括正和负的过冲电压以在铁电介质中引起偏振开关,以及正和负阻力电压以扩展铁电介质上的极化区域。 改进的电压模式的潜在优点包括减少的交叉轨迹开花和减少的沿轨道开度,导致更均匀的轨道宽度和位串联长度。