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    • 19. 发明授权
    • Multiple synthesizer based timing signal generation scheme
    • 基于多合成器的定时信号生成方案
    • US06172937B2
    • 2001-01-09
    • US09309049
    • 1999-05-10
    • Alper IlkbaharSimon M. TamIan A. Young
    • Alper IlkbaharSimon M. TamIan A. Young
    • G11C800
    • G06F1/06
    • A multiple synthesizer based timing signal generation scheme is described that allows accurate data and strobe generation in high speed source synchronous system interfaces. Multiple loop locked clock synthesizers (e.g., phase locked loops, delay locked loops) are used to generate multiple clock signals. Data and strobe signals are triggered off of transitions of one of the clock signals. Because multiple loop locked clock synthesizers are used to generate the clock signals, optimal or near optimal alignment of the data and strobe signals can be achieved. Improved alignment of the data and strobe signals provides improved data transmission rates.
    • 描述了基于多合成器的定时信号生成方案,其允许在高速源同步系统接口中进行准确的数据和频闪生成。 多环路锁定时钟合成器(例如,锁相环,延迟锁定环)用于产生多个时钟信号。 数据和选通信号从一个时钟信号的转换触发。 由于使用多个环路锁定时钟合成器来产生时钟信号,所以可以实现数据和选通信号的最佳或接近最佳对准。 改进的数据和选通信号的对准提供了改进的数据传输速率。
    • 20. 发明授权
    • Method and apparatus for optically modulating light through the back
side of an integrated circuit die
    • 通过集成电路管芯的背侧对光进行光学调制的方法和装置
    • US6075908A
    • 2000-06-13
    • US993786
    • 1997-12-19
    • Mario J. PanicciaValluri R. M. RaoIan A. Young
    • Mario J. PanicciaValluri R. M. RaoIan A. Young
    • G02B6/12G02F1/015G02F1/21
    • G02F1/218G02B2006/12107G02B2006/12142G02F2001/0152G02F2201/307
    • An optical modulator that modulates light through the semiconductor substrate through the back side of a flip chip packaged integrated circuit. The optical modulator of the present invention enables integrated circuit signals to be extracted through the back side of the semiconductor substrate. In one embodiment, an optical modulator is disposed within a flip chip packaged integrated circuit die. The optical modulator includes a deflector and a diffraction grating. An infrared light beam is directed through the back side of a silicon substrate of the integrated circuit die, deflected off the deflector through the diffraction grating and back out the back side of the integrated circuit die. The diffraction grating modulates the phase of a portion of the deflected light beam in response to an integrated circuit signal. A resulting diffraction interference occurs between the phase modulated portions and non-phase modulated portions of the deflected light beam. The interference causes amplitude modulation of a zero order diffraction of the deflected light beam, from which the integrated circuit signal can be extracted.
    • 一种光学调制器,其通过倒装芯片封装集成电路的背面来调制通过半导体衬底的光。 本发明的光调制器能够通过半导体基板的背面提取集成电路信号。 在一个实施例中,光学调制器设置在倒装芯片封装集成电路管芯内。 光学调制器包括偏转器和衍射光栅。 红外光束被引导通过集成电路管芯的硅衬底的背面,通过衍射光栅偏转偏转器并从集成电路管芯的背面退出。 衍射光栅响应于集成电路信号调制偏转光束的一部分的相位。 在偏转光束的相位调制部分和非相位调制部分之间产生衍射干涉。 干扰引起偏转光束的零级衍射的幅度调制,可从中提取集成电路信号。