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    • 10. 发明公开
    • 1R1D R-ram array with floating P-well
    • 1R1D R-RAM-Zellenfeld mit schwebender P-Wanne
    • EP1469519A2
    • 2004-10-20
    • EP04250897.8
    • 2004-02-19
    • SHARP KABUSHIKI KAISHA
    • Hsu, Sheng TengPan, WeiZhuang, WeiweiZhang, Fengyan
    • H01L27/10
    • H01L27/24G11C13/0007G11C2213/31G11C2213/72H01L27/10
    • A low-capacitance one-resistor/one-diode (1R1D) R-RAM array with a floating p-well is provided. The fabrication method comprises: forming an integrated circuit (IC) substrate (202); forming an n-doped buried layer (buried n layer) (204) of silicon overlying the substrate; forming n-doped silicon sidewalls (210) overlying the buried n layer; forming a p-doped well of silicon (p-well) (206) overlying the buried n layer; and, forming a 1R1D R-RAM array (208) overlying the p-well. Typically, the combination of the buried n layer and the n-doped sidewalls form an n-doped well (n-well) of silicon. Then, the p-well is formed inside the n-well. In other aspects, the p-well has sidewalls (212), and the method further comprises: forming an oxide insulator (214) overlying the p-well sidewalls, between the n-well and the R-RAM array.
    • 提供具有浮动p-well的低电容单电阻/单二极管(1R1D)R-RAM阵列。 该制造方法包括:形成集成电路(IC)衬底(202); 形成覆盖在衬底上的硅的n掺杂掩埋层(掩埋n层)(204); 形成覆盖所述掩埋n层的n掺杂硅侧壁(210); 形成覆盖在掩埋n层上的硅(p阱)(206)的p掺杂阱; 并且形成覆盖p阱的1R1D R-RAM阵列(208)。 通常,掩埋n层和n掺杂侧壁的组合形成硅的n掺杂阱(n阱)。 然后,p阱形成在n阱内。 在其它方面,p阱具有侧壁(212),并且该方法还包括:形成覆盖p阱侧壁,n阱和R-RAM阵列之间的氧化物绝缘体(214)。