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    • 21. 发明申请
    • On-die termination circuit and method for semiconductor memory apparatus
    • 半导体存储装置的片上终端电路和方法
    • US20070146004A1
    • 2007-06-28
    • US11602284
    • 2006-11-21
    • Jung-Hoon ParkSun-Suk Yang
    • Jung-Hoon ParkSun-Suk Yang
    • H03K19/003
    • H03K19/0005G11C5/063G11C7/1051G11C7/1057G11C7/1078G11C7/1084H04L25/0272H04L25/0298H04L25/063
    • An on-die termination circuit for semiconductor memory apparatus includes an ODT (On Die Termination) input driving unit that divides an input voltage on the basis of a resistance ratio according to a first code Pcode having at least two bits and outputs a first line voltage, a first ODT control unit that counts the first code or resets the first code to a first set value according to whether or not the first line voltage and a reference voltage match with each other, an ODT output driving unit that divides an input voltage on the basis of the resistance ratio according to the first code and a resistance ratio according to a second code having at least two bits and outputs a second line voltage, and a second ODT control unit that counts the second code or resets the second code to a second set value according to whether or not the second line voltage and the reference voltage are consistent with each other.
    • 用于半导体存储装置的片上终端电路包括:ODT(On Die Termination)输入驱动单元,其根据具有至少两个位的第一代码Pcode <0:N>根据电阻比分割输入电压,以及 输出第一线电压,第一ODT控制单元,其对第一代码进行计数,或者根据第一线电压和参考电压是否彼此匹配来将第一代码重置为第一设定值; ODT输出驱动单元, 根据第一代码和电阻比根据具有至少两个比特的第二代码并输出第二线电压的电阻比分压输入电压,以及计数第二代码或复位的第二ODT控制单元 根据第二线电压和参考电压是否彼此一致,将第二代码设置为第二设定值。
    • 23. 发明授权
    • Method of fabricating a plurality of ferroelectric capacitors
    • 制造多个铁电电容器的方法
    • US07122441B2
    • 2006-10-17
    • US11044958
    • 2005-01-26
    • Jung-Hoon ParkHyun-Ho Kim
    • Jung-Hoon ParkHyun-Ho Kim
    • H01L21/8234
    • H01L28/55
    • In one embodiment, a plurality of bottom electrodes spaced apart from each other are formed on a lower insulating layer. A high-k dielectric layer and an upper conductive layer are sequentially and conformally formed overlying the bottom electrodes. The high-k dielectric layer and the upper conductive layer cover the bottom electrodes and the lower insulating layer between the bottom electrodes. A hard mask layer is selectively formed on the upper conductive layer to have an overhang over each of the bottom electrodes. Then the upper conductive layer is anisotropically etched using the hard mask layer as an etch mask, thereby forming upper electrodes spaced from each other. Therefore, a photolithography process of forming upper electrodes can be omitted, and damage to the upper electrodes due to etch can be prevented.
    • 在一个实施例中,在下绝缘层上形成彼此间隔开的多个底部电极。 高k电介质层和上导电层顺序并保形地形成在底电极上。 高k电介质层和上导电层覆盖底电极和底电极之间的下绝缘层。 在上导电层上选择性地形成硬掩模层,以在每个底电极上具有突出端。 然后使用硬掩模层作为蚀刻掩模对上导电层进行各向异性蚀刻,从而形成彼此间隔开的上电极。 因此,可以省略形成上电极的光刻工艺,并且可以防止由于蚀刻而导致的上电极损坏。
    • 27. 发明申请
    • Method and apparatus for canceling acoustic echo in a double-talk period
    • 用于在双方通话期间消除声学回声的方法和装置
    • US20050243995A1
    • 2005-11-03
    • US11118442
    • 2005-05-02
    • Sang-Ki KangJung-Hoon ParkGang-Youl Kim
    • Sang-Ki KangJung-Hoon ParkGang-Youl Kim
    • H04B3/23H04M9/08
    • H04M9/082
    • An apparatus and method for canceling an acoustic echo. In the apparatus, a double-talk detector detects whether a current period is a double-talk period or a single-talk period by determining whether a remote talker's signal and a local talker's signal are received simultaneously or at different times. A noise-robust affine projection (NRAP) adaptive filter estimates an acoustic echo included in the remote talker's signal using an NRAP algorithm if the detected current period is a double-talk period. A normalized least mean square (NLMS) adaptive filter estimates the acoustic echo included in the remote talker's signal using an NLMS algorithm if the detected current period is a single-talk period. The apparatus then generates an echo-canceled local talker's signal.
    • 一种用于消除声学回声的装置和方法。 在该装置中,双方通话检测器通过确定是否同时或在不同时间接收到远程讲话者的信号和本地讲话者的信号来检测当前周期是双方通话期间还是单通话期间。 噪声鲁棒仿射投影(NRAP)自适应滤波器如果检测到的当前周期是双方通话周期,则使用NRAP算法估计包含在远程讲话者信号中的声学回声。 归一化最小均方(NLMS)自适应滤波器如果检测到的当前周期是单通话周期,则使用NLMS算法估计包括在远程讲话者信号中的声学回声。 然后该装置产生回声消除的本地讲话者的信号。