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    • 3. 发明申请
    • METAL ALUMINUM NITRIDE EMBEDDED RESISTORS FOR RESISTIVE RANDOM MEMORY ACCESS CELLS
    • 用于电阻随机存储器访问电池的金属氮化物嵌入式电阻器
    • WO2014150985A1
    • 2014-09-25
    • PCT/US2014/024707
    • 2014-03-12
    • KABUSHIKI KAISHA TOSHIBASANDISK 3D LLCINTERMOLECULAR, INC.
    • TENDULKAR, MihirHIGUCHI, RandallHSUEH, Chien-Lan
    • H01L45/00H01L27/24
    • H01L45/165H01L27/2409H01L45/08H01L45/1233H01L45/1266H01L45/146H01L45/147H01L45/1616H01L45/1625
    • Provided are resistive random access memory (ReRAM) cells and methods of fabricating thereof. A ReRAM cell includes an embedded resistor and resistive switching layer connected in series. The embedded resistor prevents excessive electrical currents through the resistive switching layer, especially when the resistive switching layer is switched into its low resistive state, thereby preventing over-programming. The embedded resistor includes aluminum, nitrogen, and one or more additional metals (other than aluminum). The concentration of each component is controlled to achieve desired resistivity and stability of the embedded resistor. In some embodiments, the resistivity ranges from 0.1 Ohm-centimeter to 40 Ohm- centimeter and remains substantially constant while applying an electrical field of up 8 mega-Volts /centimeter to the embedded resistor. The embedded resistor may be made from an amorphous material, and the material is operable to remain amorphous even when subjected to typical annealing conditions.
    • 提供了电阻随机存取存储器(ReRAM)单元及其制造方法。 ReRAM单元包括串联连接的嵌入式电阻和电阻开关层。 嵌入式电阻器阻止通过电阻开关层的过多电流,特别是当电阻式开关层切换到其低电阻状态时,从而防止过度编程。 嵌入式电阻器包括铝,氮和一种或多种另外的金属(除铝以外)。 控制每个组分的浓度以实现嵌入式电阻器的期望的电阻率和稳定性。 在一些实施例中,电阻率范围为0.1欧姆至40欧姆厘米,并且在施加高达8兆伏特/厘米的电场到嵌入式电阻器时保持基本恒定。 嵌入式电阻器可以由非晶材料制成,并且即使经受典型的退火条件,该材料也可操作以保持非晶态。