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    • 105. 发明授权
    • Method for forming a gate insulating layer of a semiconductor device
    • 用于形成半导体器件的栅极绝缘层的方法
    • US07494879B2
    • 2009-02-24
    • US11616284
    • 2006-12-26
    • Young Seong Lee
    • Young Seong Lee
    • H01L21/8238
    • H01L21/823462
    • Embodiments relate to a method for forming a gate insulating layer, which may include forming a device isolation layer being divided into a device active region and a device isolation region, growing a first oxide layer at an entire surface of the semiconductor substrate as a gate insulating layer, performing a first annealing process to form a diffusion barrier layer an interface between the first oxide layer and the device active region, etching and removing a first oxide layer and a diffusion barrier layer of the core power source wiring region by masking the input/output power source wiring region, growing a second oxide layer on the core power source wiring region, and performing a second annealing process to form an NO gate oxide layer on which an N-rich oxide layer at an interface of the core power source wiring region.
    • 实施例涉及形成栅极绝缘层的方法,其可以包括形成被分为器件有源区和器件隔离区的器件隔离层,在半导体衬底的整个表面上生长第一氧化物层作为栅极绝缘 进行第一退火处理,以形成扩散阻挡层,在第一氧化物层和器件有源区之间形成界面,通过掩蔽输入/输出的方式来蚀刻和去除芯电源布线区域的第一氧化物层和扩散阻挡层, 输出电源布线区域,在芯电源布线区域上生长第二氧化物层,并进行第二退火处理,以形成在其上的核心电源布线区域的界面处的富N氧化物层的NO栅极氧化层 。
    • 110. 发明授权
    • Laser diode drive control apparatus and method in optical storage medium recording/reproducing system
    • 光存储介质记录/再现系统中的激光二极管驱动控制装置和方法
    • US07330421B2
    • 2008-02-12
    • US10237094
    • 2002-09-09
    • Jong-kyu KimCheon Seong Lee
    • Jong-kyu KimCheon Seong Lee
    • G11B7/00
    • G11B7/126G11B7/1275G11B2007/0006
    • A laser diode drive control apparatus and method in an optical storage medium recording/reproducing system. The laser diode drive control apparatus may include: a monitoring unit to measure an actual beam power emitted from a laser diode; a signal level detecting unit to detect a level of a radio-frequency (RF) signal read from the optical storage medium; a clock generator to generate a system clock according to an optical storage medium type of the optical storage medium; a signal formatting unit to form the shape of a signal required during recording, reproducing or erasing operations, using the system clock; a controller to determine the optical storage medium type and to determine whether an error is present in values measured by the monitoring unit and the signal level detecting unit, and to determine a driving frequency of the laser diode based on the determined results; and a drive to drive the laser diode according to the determined driving frequency and the shape of the signal formed by the signal formatting unit. According to the laser diode drive control apparatus and method, it is possible to produce the optimum laser beam suitable for an operation mode of an optical storage medium by applying driving frequency to the optical storage medium in full consideration of optical efficiency and characteristics of the laser diode and the optical storage medium.
    • 光存储介质记录/再现系统中的激光二极管驱动控制装置和方法。 激光二极管驱动控制装置可以包括:监测单元,用于测量从激光二极管发射的实际光束功率; 信号电平检测单元,用于检测从光存储介质读取的射频(RF)信号的电平; 时钟发生器,用于根据光存储介质的光存储介质类型产生系统时钟; 信号格式化单元,用于使用系统时钟来形成在记录,再现或擦除操作期间所需的信号的形状; 控制器,用于确定光学存储介质类型并确定在由监测单元和信号电平检测单元测量的值中是否存在误差,并且基于确定的结果确定激光二极管的驱动频率; 以及根据确定的驱动频率和由信号格式化单元形成的信号的形状来驱动激光二极管的驱动器。 根据激光二极管驱动控制装置和方法,可以充分考虑光学效率和激光器的特性,通过向光存储介质施加驱动频率来产生适合于光存储介质的操作模式的最佳激光束 二极管和光存储介质。