会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 5. 发明申请
    • Circuits and methods that attenuate coupled noise
    • 衰减耦合噪声的电路和方法
    • US20050128664A1
    • 2005-06-16
    • US10982128
    • 2004-11-05
    • David PillingJames FoxKen Chan
    • David PillingJames FoxKen Chan
    • H01L23/50H01L23/60H01L27/02H02H9/00
    • H01L27/0251H01L23/50H01L23/60H01L2224/48091H01L2224/49113H01L2924/10253H01L2924/19041H01L2924/30107H01L2924/3011H01L2924/00014H01L2924/00
    • Systems and methods of chip design and package implementation for attenuating noise in timing circuits, including phase-locked-loops (PLL) and delay-locked-loops (DLL), are disclosed. Embodiments of the present invention attenuate coupled noise, such as the effects of ground current surges, or power supply noise coupling through electro-static discharge (ESD) structures. In known systems, the ground supplies for the timing circuits are designed with power and ground supplies, separate from the core power and ground; although the ground supplies are connected via common VSSsubstrate, they are separated from pad ring output driver power and ground supplies. In embodiments of the present invention, the PLL or DLL and core supplies are kept separate from the output driver power and ground supplies, providing for improved systems and methods that attenuate the effects of ground current surges from chip output drivers as they switch from logic highs to logic lows.
    • 公开了用于衰减定时电路中的噪声的芯片设计和封装实现的系统和方法,包括锁相环(PLL)和延迟锁定环(DLL)。 本发明的实施例通过静电放电(ESD)结构来衰减耦合噪声,例如接地电流浪涌的影响或电源噪声耦合。 在已知系统中,定时电路的接地电源设计有电源和地电源,与核心电源和地线分开; 虽然接地电源通过公共的SS SS衬底连接,但是它们与焊盘环输出驱动器电源和接地电源分离。 在本发明的实施例中,PLL或DLL和核心电源与输出驱动器电源和接地电源保持分开,从而提供改进的系统和方法,其从芯片输出驱动器切换到逻辑高电平时削弱地电流浪涌的影响 到逻辑低点。