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    • 5. 发明授权
    • Method for fabricating higher quality thicker gate oxide in a non-volatile memory cell and associated circuits
    • 在非易失性存储单元和相关电路中制造较高质量较厚栅极氧化物的方法
    • US08097923B2
    • 2012-01-17
    • US12803989
    • 2010-07-12
    • Thanas BudriJiankang Bu
    • Thanas BudriJiankang Bu
    • H01L27/088
    • H01L21/823892H01L21/823857H01L27/11526H01L27/11546Y10S438/981
    • A non-volatile memory cell includes a program transistor and a control capacitor. A portion of a substrate associated with the program transistor is exposed to multiple implantations (such as DNW, HiNWell, HiPWell, and P-well implantations). Similarly, a portion of the substrate associated with the control capacitor is exposed to multiple implantations (such as DNW, HiNWell, HiPWell, P-well, and N-well implantations). These portions of the substrate may have faster oxidation rates than other portions of the substrate, allowing a thicker front-end gate oxide to be formed over these portions of the substrate. In addition, a rapid thermal process anneal can be performed, which may reduce defects in the front-end gate oxide and increase its quality without having much impact on the oxide over the other portions of the substrate.
    • 非易失性存储单元包括程序晶体管和控制电容器。 与程序晶体管相关联的衬底的一部分暴露于多次注入(例如DNW,HiNWell,HiPWell和P阱注入)。 类似地,与控制电容器相关联的衬底的一部分暴露于多次注入(例如DNW,HiNWell,HiPWell,P阱和N阱注入)。 衬底的这些部分可以具有比衬底的其它部分更快的氧化速率,允许在衬底的这些部分上形成较厚的前端栅极氧化物。 此外,可以进行快速热处理退火,这可以减少前端栅极氧化物中的缺陷并提高其质量,而不会对衬底的其它部分上的氧化物产生太大影响。
    • 10. 发明授权
    • Method for fabricating higher quality thicker gate oxide in a non-volatile memory cell and associated circuits
    • 在非易失性存储单元和相关电路中制造较高质量较厚栅极氧化物的方法
    • US07781289B1
    • 2010-08-24
    • US11799921
    • 2007-05-03
    • Thanas BudriJiankang Bu
    • Thanas BudriJiankang Bu
    • H01L21/8234
    • H01L21/823892H01L21/823857H01L27/11526H01L27/11546Y10S438/981
    • A non-volatile memory cell includes a program transistor and a control capacitor. A portion of a substrate associated with the program transistor is exposed to multiple implantations (such as DNW, HiNWell, HiPWell, and P-well implantations). Similarly, a portion of the substrate associated with the control capacitor is exposed to multiple implantations (such as DNW, HiNWell, HiPWell, P-well, and N-well implantations). These portions of the substrate may have faster oxidation rates than other portions of the substrate, allowing a thicker front-end gate oxide to be formed over these portions of the substrate. In addition, a rapid thermal process anneal can be performed, which may reduce defects in the front-end gate oxide and increase its quality without having much impact on the oxide over the other portions of the substrate.
    • 非易失性存储单元包括程序晶体管和控制电容器。 与程序晶体管相关联的衬底的一部分暴露于多次注入(例如DNW,HiNWell,HiPWell和P阱注入)。 类似地,与控制电容器相关联的衬底的一部分暴露于多次注入(例如DNW,HiNWell,HiPWell,P阱和N阱注入)。 衬底的这些部分可以具有比衬底的其它部分更快的氧化速率,允许在衬底的这些部分上形成较厚的前端栅极氧化物。 此外,可以进行快速热处理退火,这可以减少前端栅极氧化物中的缺陷并提高其质量,而不会对衬底的其它部分上的氧化物产生太大影响。