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    • 85. 发明授权
    • Direct drive spindle, machining center and methods of fabricating the same
    • 直接驱动主轴,加工中心及其制造方法
    • US07293340B1
    • 2007-11-13
    • US11724271
    • 2007-03-15
    • Hsiang-Yuan TsaoChun-Chieh Lin
    • Hsiang-Yuan TsaoChun-Chieh Lin
    • B23P15/00B23C1/12
    • B23Q1/5406B23Q2210/004B23Q2220/006Y10T29/49826Y10T29/49904Y10T409/307672Y10T409/308512
    • This invention discloses a direct drive spindle assembly including a main fork formed by a base and a parallel pair of spaced fork arms and rotated about a first rotational axis. Moreover, the direct drive spindle assembly includes a first drive established by a hollow housing, a first motor stator and a first motor rotor, wherein the first motor rotor coupled with the base of the main fork drives the main fork to rotate about the first rotational axis. Furthermore, the direct drive spindle assembly includes a second drive contained in a room between the fork arms of the main fork and established by a second motor stator concentric with a second rotational axis, a second motor rotor and a rotor transmission ring, wherein the second rotational axis is perpendicular to the first rotational axis and the second motor stator is coupled with the fork arms of the main fork. In addition, the direct drive spindle assembly includes a spindle box having an orthogonal cross structure. A first arm of the rotor transmission ring is coupled with the second motor rotor and a second arm of the structure is connected to a spindle head. The feature of the present invention is that after the second drive is fit in the room between the above-mentioned paired fork arms of the main fork and then combined with the base of the main fork and firmly locked in the right position, the whole structure can achieve preferred precision.
    • 本发明公开了一种直接驱动主轴组件,其包括由基座形成的主叉和平行的一对间隔的叉臂,并绕第一旋转轴线旋转。 此外,直接驱动主轴组件包括由中空壳体建立的第一驱动器,第一电动机定子和第一电动机转子,其中与主叉的基座联接的第一电动机转子驱动主叉绕第一旋转 轴。 此外,直接驱动主轴组件包括容纳在主叉的叉臂之间的房间中并由与第二旋转轴同心的第二电动机定子建立的第二驱动器,第二电动机转子和转子传动环,其中第二驱动主轴 旋转轴线垂直于第一旋转轴线,而第二电动机定子与主叉的叉臂连接。 此外,直接驱动主轴组件包括具有正交交叉结构的主轴箱。 转子传动环的第一臂与第二电动机转子耦合,并且该结构的第二臂连接到主轴头。 本发明的特征在于,在将第二驱动装配在主叉的上述成对叉臂之间的房间中,然后与主叉的基部结合并牢固地锁定在正确的位置时,整个结构 可以实现优先的精度。
    • 88. 发明授权
    • Method of forming DRAM capacitors with protected outside crown surface for more robust structures
    • 形成具有受保护的外冠表面的DRAM电容器的方法用于更坚固的结构
    • US06875655B2
    • 2005-04-05
    • US10802564
    • 2004-03-17
    • Chun-Chieh LinLan-Lin ChaoChia-Hui LinFu-Liang YangChia-Shiung TsaiChanming Hu
    • Chun-Chieh LinLan-Lin ChaoChia-Hui LinFu-Liang YangChia-Shiung TsaiChanming Hu
    • H01L21/02H01L21/336H01L21/8242H01L27/02H01L27/108
    • H01L27/10852H01L27/0207H01L27/10817H01L28/91
    • A method for fabricating a high-density array of crown capacitors with increased capacitance while reducing process damage to the bottom electrodes is achieved. The process is particularly useful for crown capacitors for future DRAM circuits with minimum feature sizes of 0.18 micrometer or less. A conformal conducting layer is deposited over trenches in an interlevel dielectric (ILD) layer, and is polished back to form capacitor bottom electrodes. A novel photoresist mask and etching are then used to pattern the ILD layer to provide a protective interlevel dielectric structure between capacitors. The protective structures prevent damage to the bottom electrodes during subsequent processing. The etching also exposes portions of the outer surface of bottom electrodes for increased capacitance (>50%). In a first embodiment the ILD structure is formed between pairs of adjacent bottom electrodes, and in a second embodiment the ILD structure is formed between four adjacent bottom electrodes.
    • 实现了一种用于制造具有增加的电容的高密度阵列的冠状电容器的方法,同时减少了对底部电极的工艺损伤。 该过程对于具有最小特征尺寸为0.18微米或更小的未来DRAM电路的冠电容器特别有用。 在层间电介质(ILD)层中的沟槽上沉积共形导电层,并将其抛光回形成电容器底部电极。 然后使用新颖的光致抗蚀剂掩模和蚀刻来对ILD层进行图案以在电容器之间提供保护性层间电介质结构。 保护结构可防止在后续处理期间损坏底部电极。 蚀刻还暴露了底部电极的外表面的部分以增加电容(> 50%)。 在第一实施例中,ILD结构形成在成对的相邻底部电极之间,并且在第二实施例中,ILD结构形成在四个相邻的底部电极之间。