RRAM array using multiple reset voltages and method of resetting RRAM array using multiple reset voltages
    12.
    发明授权
    RRAM array using multiple reset voltages and method of resetting RRAM array using multiple reset voltages 有权
    使用多个复位电压的RRAM阵列和使用多个复位电压复位RRAM阵列的方法

    公开(公告)号:US09361980B1

    公开(公告)日:2016-06-07

    申请号:US14620352

    申请日:2015-02-12

    Abstract: According to another embodiment, a method of reset operation for a resistive random access memory (RRAM) array, having a first RRAM connected to a first word line and a second RRAM connected to a second word line, is provided. A first electrical resistance between the first word line and a word line voltage source is lower than a second electrical resistance between the second word line and the word line voltage source. The method includes: providing a first voltage by using the word line voltage source for resetting the first RRAM; and providing a second voltage by using the word line voltage source for resetting the second RRAM, wherein the first voltage for resetting the first RRAM is lower than the second voltage for resetting the second RRAM.

    Abstract translation: 根据另一实施例,提供一种具有连接到第一字线的第一RRAM和连接到第二字线的第二RRAM的电阻随机存取存储器(RRAM)阵列的复位操作的方法。 第一字线和字线电压源之间的第一电阻低于第二字线和字线电压源之间的第二电阻。 该方法包括:通过使用用于复位第一RRAM的字线电压源来提供第一电压; 以及通过使用用于复位第二RRAM的字线电压源来提供第二电压,其中用于复位第一RRAM的第一电压低于用于复位第二RRAM的第二电压。

    PHASE CHANGE MATERIAL SWITCH CIRCUIT FOR ENHANCED SIGNAL ISOLATION AND METHODS OF FORMING THE SAME

    公开(公告)号:US20240397733A1

    公开(公告)日:2024-11-28

    申请号:US18321898

    申请日:2023-05-23

    Abstract: A device structure includes a first series connection of a first phase change memory (PCM) switch and a second PCM switch. The first PCM switch includes a first heater line, a first PCM line, and a first contact electrode and a second contact electrode located on the first heater line. The second PCM switch includes a second heater line, a second PCM line, and a third contact electrode and a fourth contact electrode located on the second heater line. The second contact electrode is electrically connected to the third contact electrode. The fourth contact electrode is electrically grounded. One of the first contact electrode and the second contact electrode includes an radio-frequency (RF) signal input port. Another of the first contact electrode and the second contact electrode comprises an RF signal output port. The device structure may function as a combination PCM switch that decreases noise level during signal transmission.

    RRAM and method of read operation for RRAM
    16.
    发明授权
    RRAM and method of read operation for RRAM 有权
    RRAM和RRAM读操作方法

    公开(公告)号:US09576651B2

    公开(公告)日:2017-02-21

    申请号:US14601458

    申请日:2015-01-21

    Abstract: According to one embodiment, a method of RRAM operations is provided. The method includes the following operations: providing a first voltage difference across a resistor of the RRAM during a read operation; and providing a second voltage difference across the resistor of the RRAM during a reset operation, wherein the first voltage difference has the same polarity as the second voltage difference.

    Abstract translation: 根据一个实施例,提供了一种RRAM操作的方法。 该方法包括以下操作:在读操作期间在RRAM的电阻器两端提供第一电压差; 以及在复位操作期间在所述RRAM的电阻器两端提供第二电压差,其中所述第一电压差具有与所述第二电压差相同的极性。

    Phase change material switch with improved thermal confinement and methods for forming the same

    公开(公告)号:US12268103B2

    公开(公告)日:2025-04-01

    申请号:US17836145

    申请日:2022-06-09

    Abstract: Phase change material (PCM) switches and methods of fabrication thereof that provide improved thermal confinement within a phase change material layer. A PCM switch may include a dielectric capping layer between a heater pad and the phase change material layer of the PCM switch that is laterally-confined such opposing sides of the dielectric capping layer the heater pad may form continuous surfaces extending transverse to the signal transmission pathway across the PCM switch. Heat transfer from the heater pad through the dielectric capping layer to the phase change material layer may be predominantly vertical, with minimal thermal dissipation along a lateral direction. The localized heating of the phase change material may improve the efficiency of the PCM switch enabling lower bias voltages, minimize the formation of regions of intermediate resistivity in the PCM switch, and improve the parasitic capacitance characteristics of the PCM switch.

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