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    • 1. 发明授权
    • Dielectric element
    • 介电元件
    • US06720096B1
    • 2004-04-13
    • US09711512
    • 2000-11-14
    • Shigeharu MatsushitaMitsuaki Harada
    • Shigeharu MatsushitaMitsuaki Harada
    • B32B900
    • H01L28/75H01L28/55
    • A dielectric element employing an oxide-based dielectric film capable of suppressing oxidation of an electrode or deterioration of film characteristics of the oxide-based dielectric film is obtained. This dielectric element comprises an insulator film including the oxide-based dielectric film and the electrode including a first conductor film containing at least a metal and silicon. The aforementioned metal includes at least one metal selected from a group consisting of Ir, Pt, Ru, Re, Ni, Co and Mo. Thus, the aforementioned first conductor film serves as a barrier film for stopping diffusion of oxygen. In heat treatment for sintering the oxide-based dielectric film, therefore, oxygen is effectively inhibited from diffusing along grain boundaries of the electrode. Consequently, a conductive material located under the electrode can be inhibited from oxidation.
    • 可以获得使用能够抑制电极氧化的氧化物系电介质膜或氧化物类电介质膜的膜特性劣化的介质元件。 该电介质元件包括绝缘膜,该绝缘膜包括基于氧化物的电介质膜,该电极包括至少含有金属和硅的第一导体膜。 上述金属包括选自Ir,Pt,Ru,Re,Ni,Co和Mo中的至少一种金属。因此,上述第一导体膜用作阻止氧的扩散的阻挡膜。 因此,在用于烧结氧化物类电介质膜的热处理中,有效地抑制氧气沿着电极的晶界扩散。 因此,可以抑制位于电极下方的导电材料的氧化。
    • 7. 发明申请
    • Method of fabricating memory and memory
    • 制造记忆和记忆的方法
    • US20060063279A1
    • 2006-03-23
    • US11260243
    • 2005-10-28
    • Kazunari HonmaShigeharu Matsushita
    • Kazunari HonmaShigeharu Matsushita
    • H01L21/00H01L29/94
    • H01L28/65H01L27/11502H01L27/11507H01L28/57
    • A method of fabricating a memory capable of improving the strength of a signal read from a memory cell is provided. This method of fabricating a memory comprises steps of forming a storage part and an etched thin-film part by partially etching a storage material film formed on a first electrode film by a prescribed thickness, forming an insulator film to cover at least the thin-film part of the storage material film and patterning the insulator film and the thin-film part of the storage material film by forming an etching mask on a prescribed region of the insulator film and thereafter etching the insulator film and the thin-film part of the storage material film through the etching mask.
    • 提供一种制造能够提高从存储单元读取的信号的强度的存储器的方法。 这种制造存储器的方法包括以下步骤:通过将形成在第一电极膜上的存储材料膜部分地蚀刻预定厚度来形成存储部分和蚀刻的薄膜部分,形成绝缘膜以至少覆盖薄膜 部分储存材料膜,并通过在绝缘膜的规定区域上形成蚀刻掩模,然后蚀刻绝缘膜和存储材料的薄膜部分来对绝缘膜和存储材料膜的薄膜部分进行图案化 材料膜通过蚀刻掩模。
    • 8. 发明授权
    • Dielectric element including oxide dielectric film and method of manufacturing the same
    • 包含氧化物介电膜的电介质元件及其制造方法
    • US06762476B2
    • 2004-07-13
    • US10060260
    • 2002-02-01
    • Shigeharu MatsushitaTatsurou Gueshi
    • Shigeharu MatsushitaTatsurou Gueshi
    • H01L2900
    • H01L28/60H01L28/55
    • A dielectric element capable of attaining excellent element characteristics by suppressing an oxide dielectric film from deterioration of characteristics caused by hydrogen is obtained. This dielectric element comprises a lower electrode including a first conductor film containing a metal, silicon and nitrogen, a first insulator film including the oxide dielectric film and an upper electrode including a second conductor film containing the metal, silicon and nitrogen, while the metal includes at least one metal selected from a group consisting of Ir, Pt, Ru, Re, Ni, Co and Mo. According to this structure, the first conductor film and the second conductor film function as barrier films preventing diffusion of hydrogen. Consequently, the first conductor film and the second conductor film suppress hydrogen from diffusing into the oxide dielectric film. Thus, the oxide dielectric film is prevented from deterioration of characteristics.
    • 获得能够通过抑制氧化物电介质膜由氢引起的特性劣化而获得优异元素特性的电介质元件。 该电介质元件包括下电极,其包括含有金属,硅和氮的第一导体膜,包括氧化物电介质膜的第一绝缘膜和包括含有金属,硅和氮的第二导体膜的上电极,而金属包括 选自由Ir,Pt,Ru,Re,Ni,Co和Mo组成的组中的至少一种金属。根据该结构,第一导体膜和第二导体膜用作阻止氢扩散的阻挡膜。 因此,第一导体膜和第二导体膜抑制氢扩散到氧化物介电膜中。 因此,防止了氧化物介电膜的特性劣化。
    • 9. 发明授权
    • Method of fabricating memory and memory
    • 制造记忆和记忆的方法
    • US07297559B2
    • 2007-11-20
    • US11260243
    • 2005-10-28
    • Kazunari HonmaShigeharu Matsushita
    • Kazunari HonmaShigeharu Matsushita
    • H01L21/00
    • H01L28/65H01L27/11502H01L27/11507H01L28/57
    • A method of fabricating a memory capable of improving the strength of a signal read from a memory cell is provided. This method of fabricating a memory comprises steps of forming a storage part and an etched thin-film part by partially etching a storage material film formed on a first electrode film by a prescribed thickness, forming an insulator film to cover at least the thin-film part of the storage material film and patterning the insulator film and the thin-film part of the storage material film by forming an etching mask on a prescribed region of the insulator film and thereafter etching the insulator film and the thin-film part of the storage material film through the etching mask.
    • 提供一种制造能够提高从存储单元读取的信号的强度的存储器的方法。 这种制造存储器的方法包括以下步骤:通过将形成在第一电极膜上的存储材料膜部分地蚀刻预定厚度来形成存储部分和蚀刻的薄膜部分,形成绝缘膜以至少覆盖薄膜 部分储存材料膜,并通过在绝缘膜的规定区域上形成蚀刻掩模,然后蚀刻绝缘膜和存储材料的薄膜部分来对绝缘膜和存储材料膜的薄膜部分进行图案化 材料膜通过蚀刻掩模。
    • 10. 发明申请
    • Memory
    • 记忆
    • US20070237016A1
    • 2007-10-11
    • US11630851
    • 2005-06-16
    • Hideaki MiyamotoNaofumi SakaiKouichi YamadaShigeharu Matsushita
    • Hideaki MiyamotoNaofumi SakaiKouichi YamadaShigeharu Matsushita
    • G11C7/00
    • G11C11/22
    • A memory wherein any “disturb effect” can be suppressed in which data in unselected memory cells are lost. This memory has a memory cell array(1) including bit lines, word lines, which are disposed to intersect the bit lines, and memory cells(12) each connected between bit and word lines. In this memory, an access operation, which includes at least one of read, rewrite and write operations, is made to a selected memory cell(12). During this access operation, it is performed to apply to the memory cell(12) a first voltage pulse, which provides an electrical field in a first direction so as to invert a stored data, and a second voltage pulse, which provides as electrical field in the opposite direction to the first one so as not to invert the stored data. In addition, a recovery operation for recovering a residual polarization amount is made to the memory cell(12).
    • 可以抑制其中未选择的存储单元中的数据丢失的任何“干扰效应”的存储器。 该存储器具有存储单元阵列(1),该存储单元阵列(1)包括位线,设置成与位线相交的字线以及每个连接在位线和字线之间的存储单元(12)。 在该存储器中,对选择的存储器单元(12)进行包括读取,重写和写入操作中的至少一个的访问操作。 在该访问操作期间,执行向存储器单元(12)施加第一电压脉冲,该第一电压脉冲在第一方向上提供电场以反转存储的数据,以及第二电压脉冲,其提供为电场 与第一个方向相反的方向,以便不反转存储的数据。 此外,对存储单元(12)进行用于恢复残留极化量的恢复操作。