Phase change memory including ovonic threshold switch with layered electrode and methods for forming same
    22.
    发明授权
    Phase change memory including ovonic threshold switch with layered electrode and methods for forming same 有权
    相变存储器,包括具有分层电极的超声门限开关及其形成方法

    公开(公告)号:US08530875B1

    公开(公告)日:2013-09-10

    申请号:US12774772

    申请日:2010-05-06

    Abstract: Erosion of chalcogenides in phase change memories using ovonic threshold switch selectors can be reduced by controlling columnar morphology in electrodes used in the ovonic threshold switch. The columnar morphology may cause cracks to occur which allow etchants used to etch the ovonic threshold switch to sneak through the ovonic threshold switch and to attack chalcogenides, either in the switch or in the memory element. In one embodiment, the electrode may be split into two metal nitride layers separated by an intervening metal layer.

    Abstract translation: 通过控制在椭圆形阈值开关中使用的电极中的柱状形态,可以减少硫化物在相变存储器中的侵蚀。 柱状形态可能导致裂纹发生,这允许蚀刻剂用于蚀刻超声波阈值开关以潜入超声波阈值开关,并在开关或存储元件中攻击硫族化物。 在一个实施例中,电极可以被分成由中间金属层隔开的两个金属氮化物层。

    Flash memory and a method for programming the flash memory in which a bit line setup operation is executed simultaneously with a channel pre-charge operation
    23.
    发明授权
    Flash memory and a method for programming the flash memory in which a bit line setup operation is executed simultaneously with a channel pre-charge operation 有权
    闪速存储器和用于对闪存进行编程的方法,其中与通道预充电操作同时执行位线设置操作

    公开(公告)号:US08174902B2

    公开(公告)日:2012-05-08

    申请号:US12500867

    申请日:2009-07-10

    CPC classification number: G11C16/0483 G11C16/10 G11C16/3454

    Abstract: A method, device and system are provided for programming a flash memory device, the method including executing a bit line setup operation, and executing a channel pre-charge operation simultaneously with the bit line setup operation, the channel pre-charge operation including applying a channel pre-charge voltage to all word lines; and the device including a voltage generator disposed for providing each of a program voltage, a read voltage, a pass voltage, and a channel pre-charge voltage, a high-voltage switch connected to the voltage generator and disposed for switchably providing one of the program voltage, read voltage, pass voltage, or channel pre-charge voltage, and control logic connected to the high-voltage switch and disposed for simultaneously executing a bit line setup operation and a channel pre-charge operation, the channel pre-charge operation comprising controlling the high-voltage switch to apply the channel pre-charge voltage to both selected and unselected word lines of the device.

    Abstract translation: 提供了一种用于对闪速存储器件进行编程的方法,装置和系统,所述方法包括执行位线设置操作,以及与位线设置操作同时执行通道预充电操作,所述通道预充电操作包括应用 通道预充电电压到所有字线; 并且所述装置包括被设置用于提供编程电压,读取电压,通过电压和通道预充电电压中的每一个的电压发生器,连接到电压发生器的高压开关,并且被设置用于可切换地提供 编程电压,读取电压,通过电压或通道预充电电压,以及连接到高压开关的控制逻辑,并被设置用于同时执行位线设置操作和通道预充电操作,通道预充电操作 包括控制所述高压开关以将所述通道预充电电压施加到所述器件的所选择的和未选择的字线。

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