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    • 124. 发明申请
    • Non-planar flash memory having shielding between floating gates
    • 浮动栅极之间具有屏蔽的非平面闪存
    • US20060208309A1
    • 2006-09-21
    • US11436247
    • 2006-05-18
    • Leonard ForbesKie Ahn
    • Leonard ForbesKie Ahn
    • H01L29/788
    • H01L27/115G11C16/0483H01L27/11521
    • A first plurality of memory cells is formed on pillars in a first column of the array. A second plurality of memory cells is formed in a first set of trenches in the same column. The second plurality of memory cells is coupled to the first plurality of memory cells through a series connection of their source/drain regions. A second set of trenches, perpendicular to the first set, is formed to separate columns of the array. Word lines are formed along rows of the array. The word lines are formed into the second set of trenches in order to shield adjacent floating gates. Metal shields are formed in the first set of trenches along the rows and between floating gates on the pillars.
    • 在阵列的第一列中的柱上形成第一多个存储单元。 第二组多个存储单元形成在同一列中的第一组沟槽中。 第二多个存储器单元通过其源极/漏极区域的串联连接耦合到第一多个存储器单元。 垂直于第一组的第二组沟槽形成为分离阵列的列。 字线沿数组的行形成。 字线形成第二组沟槽,以屏蔽相邻的浮动栅极。 沿着行的第一组沟槽和柱上的浮动浇口之间形成金属屏蔽。
    • 128. 发明申请
    • Atomic layer deposition of Dy doped HfO2 films as gate dielectrics
    • 作为栅极电介质的Dy掺杂HfO 2膜的原子层沉积
    • US20060176645A1
    • 2006-08-10
    • US11053577
    • 2005-02-08
    • Kie AhnLeonard Forbes
    • Kie AhnLeonard Forbes
    • H01G4/06
    • H01L21/02181C23C16/405C23C16/45529H01L21/022H01L21/0228H01L21/28194H01L21/3141H01L21/31645H01L29/513H01L29/517H01L29/78
    • The use of atomic layer deposition (ALD) to form a dielectric layer of hafnium oxide (HfO2) doped with dysprosium (Dy) and a method of fabricating such a combination gate and dielectric layer produces a reliable structure for use in a variety of electronic devices. Forming the dielectric structure includes depositing hafnium oxide using atomic layer deposition onto a substrate surface using precursor chemicals, followed by depositing dysprosium oxide onto the substrate using precursor chemicals, and repeating to form the thin laminate structure. A dielectric layer of dysprosium doped hafnium oxide may be used as the gate insulator of a MOSFET, as a capacitor dielectric in a DRAM, as a tunnel gate insulator in flash memories, or as a dielectric in NROM devices, because the high dielectric constant (high-k) of the film provides the functionality of a thinner silicon dioxide film, and because the reduced leakage current of the dielectric layer when the percentage of dysprosium doping is optimized improves memory function.
    • 使用原子层沉积(ALD)形成掺杂有镝(Dy)的氧化铪(HfO 2 N 2)的介电层和制造这种组合栅极和电介质层的方法产生可靠的结构 用于各种电子设备。 形成电介质结构包括使用前体化学品将原子层沉积物沉积到衬底表面上,然后使用前体化学品将氧化镝沉积到衬底上,并重复形成薄的层压结构。 镝掺杂氧化铪的电介质层可用作MOSFET的栅极绝缘体,作为DRAM中的电容器电介质,作为闪存中的隧道栅极绝缘体或NROM器件中的电介质,因为高介电常数( 高k)的薄膜提供更薄的二氧化硅膜的功能,并且由于优化了镝掺杂的百分比时介电层的漏电流减小,从而提高记忆功能。