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
    • 4. 发明授权
    • Method to increase the clear ration of capacitor silicon nitride to improve the threshold voltage uniformity
    • 提高电容器氮化硅清除率的方法,提高阈值电压的均匀性
    • US06251724B1
    • 2001-06-26
    • US09431235
    • 1999-11-01
    • Shu-Mei KuLin-June Wu
    • Shu-Mei KuLin-June Wu
    • H01L218242
    • H01L27/0629H01L27/1085H01L27/10894
    • A method to remove the silicon nitride capacitor dielectric layer from over the poly-1 layer on portions of the wafer including non-capacitor areas such as the pad contact area, process control monitor (PCM) testsite areas and scribe line areas. By removing the silicon nitride, H2 can penetrate to the polysilicon and thereby increase the uniformity of the VT. In a first embodiment of the invention, the silicon nitride capacitor dielectric layer is etched away from over the poly-1 layer in the pad area. The removal of the SiN layer allows H2 to penetrate into the poly-1 layer and improve the threshold voltage (VT). Uniformity of long channel VT-N was improved when we modify the pad struture of PCM to increase the clear out ratio of capacitor Si3N4 to 1.0584%. In a second embodiment of the invention, the silicon nitride capacitor dielectric is etched away from over the poly-1 layer in the process control monitor (PCM) testsite area between the chips. In a third embodiment of the invention, the silicon nitride capacitor dielectric is etched away from over the poly-1 layer in the scribe area between the between the chips.
    • 一种在包括诸如焊盘接触区域,过程控制监视器(PCM)现场区域和划线区域之类的非电容器区域的晶片的部分上从多晶硅层上方去除氮化硅电容器电介质层的方法。 通过去除氮化硅,H2可以渗透到多晶硅,从而增加VT的均匀性。 在本发明的第一实施例中,氮化硅电容器介质层被蚀刻远离焊盘区域中的多晶硅层1。 去除SiN层允许H 2渗透到poly-1层中并提高阈值电压(VT)。 当改变PCM的焊盘结构以增加电容器Si3N4的清除比达到1.0584%时,长沟道VT-N的均匀性得到改善。 在本发明的第二实施例中,在芯片之间的过程控制监视器(PCM)测试点区域中,氮化硅电容器电介质被蚀刻远离多晶硅层1。 在本发明的第三实施例中,在芯片之间的划线区域中的氮化硅电容器电介质被蚀刻远离多晶硅层。
    • 7. 发明授权
    • Dynamic substrate-coupled electrostatic discharging protection circuit
    • 动态衬底耦合静电放电保护电路
    • US06479872B1
    • 2002-11-12
    • US09221959
    • 1998-12-28
    • Tao ChengJian-Hsing LeeLin-June Wu
    • Tao ChengJian-Hsing LeeLin-June Wu
    • H01L2362
    • H01L27/0266
    • A dynamic source coupled ESD protection circuit that dissipates an ESD voltage coupled to an electrical contact pad to protect internal circuits on an integrated circuits chip is described. The ESD protection circuit lowers the snapback voltage of the ESD protection circuit to allow a thinner gate oxide within the internal circuits of the integrated circuit chip. The dynamic substrate coupled electrostatic discharge protection circuit consists of a gated MOS transistor, a capacitor, and a resistor. The gated MOS transistor has a drain region connected to the electrical contact pad. The gate and source are connected to a power supply voltage source. The power supply voltage source will either be a substrate biasing voltage or ground reference point for a gated NMOS transistor. The power supply voltage source will be the power supply voltage source VDD for the gated PMOS transistor. The capacitor has a first plate connected to the electrical contact pad, and a second plate connected to said substrate bulk region of the MOS transistor. The resistor is a polycrystalline silicon resistor that is connected between the second plate of the capacitor and the power supply voltage source.
    • 描述了动态源耦合ESD保护电路,其消耗耦合到电接触焊盘的ESD电压以保护集成电路芯片上的内部电路。 ESD保护电路降低ESD保护电路的回跳电压,以便在集成电路芯片的内部电路内允许更薄的栅极氧化物。 动态衬底耦合静电放电保护电路由门控MOS晶体管,电容器和电阻组成。 门控MOS晶体管具有连接到电接触焊盘的漏极区域。 栅极和源极连接到电源电压源。 电源电压源将是门控NMOS晶体管的衬底偏置电压或接地参考点。 电源电压源将是门控PMOS晶体管的电源电压源VDD。 电容器具有连接到电接触焊盘的第一板和连接到MOS晶体管的所述衬底主体区域的第二板。 电阻器是连接在电容器的第二板和电源电压源之间的多晶硅电阻器。