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    • 71. 发明申请
    • EEPROM CELL
    • EEPROM单元
    • US20120074483A1
    • 2012-03-29
    • US12888437
    • 2010-09-23
    • Sung Mun JUNGKian Hong LIMJianbo YANGSwee Tuck WOOSanford CHU
    • Sung Mun JUNGKian Hong LIMJianbo YANGSwee Tuck WOOSanford CHU
    • H01L29/788H01L21/336
    • H01L29/7881G11C16/0433H01L21/28273H01L27/11521H01L27/11524H01L29/66825
    • A method of forming a device is disclosed. The method includes providing a substrate prepared with a cell area and forming first and second gates of first and second transistors in the cell area. The first gate includes a second sub-gate surrounding a first sub-gate. The first and second sub-gates of the first gate are separated by a first intergate dielectric layer. The second gate includes a second sub-gate surrounding a first sub-gate. The first and second sub-gates of the second gate are separated by a second intergate dielectric layer. The method also includes forming first and second junctions of the first and second transistors. A first gate terminal is formed and coupled to the second sub-gate of the first transistor. A second gate terminal is formed and coupled to at least the first sub-gate of the second transistor.
    • 公开了一种形成装置的方法。 该方法包括提供准备有单元区域的基板,并在单元区域中形成第一和第二晶体管的第一和第二栅极。 第一栅极包括围绕第一子栅极的第二子栅极。 第一栅极的第一和第二子栅极由第一栅极介电层分开。 第二栅极包括围绕第一子栅极的第二子栅极。 第二栅极的第一和第二子栅极由第二栅极间介电层分开。 该方法还包括形成第一和第二晶体管的第一和第二结。 第一栅极端子形成并耦合到第一晶体管的第二子栅极。 第二栅极端子形成并耦合到至少第二晶体管的第一子栅极。
    • 77. 发明申请
    • SELF-ALIGNED VERTICAL PNP TRANSISTOR FOR HIGH PERFORMANCE SiGe CBiCMOS PROCESS
    • 用于高性能SiGe CBiCMOS工艺的自对准垂直PNP晶体管
    • US20090146258A1
    • 2009-06-11
    • US12368283
    • 2009-02-09
    • Shaoqiang ZHANGPurakh Raj VERMASanford CHU
    • Shaoqiang ZHANGPurakh Raj VERMASanford CHU
    • H01L29/72H01L21/8238H01L21/8249
    • H01L21/82285H01L21/8249H01L27/0623H01L27/0826H01L29/7378
    • A structure and a process for a self-aligned vertical PNP transistor for high performance SiGe CBiCMOS process. Embodiments include SiGe CBiCMOS with high-performance SiGe NPN transistors and PNP transistors. As the PNP transistors and NPN transistors contained different types of impurity profile, they need separate lithography and doping step for each transistor. The process is easy to integrate with existing CMOS process to save manufacturing time and cost. As plug-in module, fully integration with SiGe BiCMOS processes. High doping Polysilicon Emitter can increase hole injection efficiency from emitter to base, reduce emitter resistor, and form very shallow EB junction. Self-aligned N+ base implant can reduce base resistor and parasitical EB capacitor. Very low collector resistor benefits from BP layer. PNP transistor can be Isolated from other CMOS and NPN devices by BNwell, Nwell and BN+ junction.
    • 用于高性能SiGe CBiCMOS工艺的自对准垂直PNP晶体管的结构和工艺。 实施例包括具有高性能SiGe NPN晶体管和PNP晶体管的SiGe CBiCMOS。 由于PNP晶体管和NPN晶体管包含不同类型的杂质分布,因此每个晶体管需要单独的光刻和掺杂步骤。 该过程易于与现有的CMOS工艺集成,以节省制造时间和成本。 作为插件模块,与SiGe BiCMOS工艺完全集成。 高掺杂多晶硅发射器可以增加从发射极到基极的空穴注入效率,减少发射极电阻,并形成非常浅的EB结。 自对准N +基极植入可以减少基极电阻和寄生EB电容。 极低的集电极电阻受益于BP层。 PNP晶体管可以通过BNwell,Nwell和BN +结与其他CMOS和NPN器件隔离。
    • 79. 发明授权
    • MOSFET device with low gate contact resistance
    • 具有低栅极接触电阻的MOSFET器件
    • US07382027B2
    • 2008-06-03
    • US11045958
    • 2005-01-28
    • Purakh Raj VermaSanford ChuLap ChanYelehanka PradeepKai ShaoJia Zhen Zheng
    • Purakh Raj VermaSanford ChuLap ChanYelehanka PradeepKai ShaoJia Zhen Zheng
    • H01L29/76H01L29/94H01L31/062H01L31/113H01L31/119
    • H01L21/76802H01L21/76829
    • A CMOS RF device and a method to fabricate said device with low gate contact resistance are described. Conventional MOS transistor is first formed with isolation regions, poly-silicon gate structure, sidewall spacers around poly gate, and implanted source/drain with lightly and heavily doped regions. A silicon dioxide layer such as TEOS is deposited, planarized with chemical mechanical polishing (CMP) to expose the gate and treated with dilute HF etchant to recess the silicon dioxide layer below the surface of the gate. Silicon nitride is then deposited and planarized with CMP and then etched except around the gates, using a oversize poly-silicon gate mask. Inter-level dielectric mask is then deposited, contact holes etched, and contact metal is deposited to form the transistor. During contact hole etch over poly-silicon gate, silicon nitride around the poly gate acts as an etch stop. Resulting structure with direct gate contact achieves significantly reduced gate resistance and thereby improved noise performance at high frequency operation, increased unit power gain frequency (fmax), and reduced gate delay.
    • 描述CMOS RF器件和制造具有低栅极接触电阻的所述器件的方法。 传统的MOS晶体管首先形成有隔离区域,多晶硅栅极结构,围绕多晶硅栅极的侧壁隔离物以及具有轻掺杂和重掺杂区域的注入源极/漏极。 沉积诸如TEOS的二氧化硅层,通过化学机械抛光(CMP)平坦化以暴露栅极,并用稀的HF蚀刻剂处理以使位于栅极表面下方的二氧化硅层凹陷。 然后将氮化硅沉积并用CMP平坦化,然后使用超大型多晶硅栅极掩模在栅极周围进行蚀刻。 然后沉积层间电介质掩模,蚀刻接触孔,并沉积接触金属以形成晶体管。 在多晶硅栅极的接触孔蚀刻期间,多晶硅周围的氮化硅作为蚀刻停止。 具有直接栅极接触的所得结构实现了显着降低的栅极电阻,从而改善了高频操作下的噪声性能,增加的单位功率增益频率(f max)和减小的栅极延迟。
    • 80. 发明申请
    • Self-aligned vertical PNP transistor for high performance SiGe CBiCMOS process
    • 用于高性能SiGe CBiCMOS工艺的自对准垂直PNP晶体管
    • US20070134854A1
    • 2007-06-14
    • US11302479
    • 2005-12-13
    • Shaoqiang ZhangPurakh VermaSanford Chu
    • Shaoqiang ZhangPurakh VermaSanford Chu
    • H01L21/8232H01L21/335
    • H01L21/82285H01L21/8249H01L27/0623H01L27/0826H01L29/7378
    • A structure and a process for a self-aligned vertical PNP transistor for high performance SiGe CBiCMOS process. Embodiments include SiGe CBiCMOS with high-performance SiGe NPN transistors and PNP transistors. As the PNP transistors and NPN transistors contained different types of impurity profile, they need separate lithography and doping step for each transistor. The process is easy to integrate with existing CMOS process to save manufacturing time and cost. As plug-in module, fully integration with SiGe BiCMOS processes. High doping Polysilicon Emitter can increase hole injection efficiency from emitter to base, reduce emitter resistor, and form very shallow EB junction. Self-aligned N+ base implant can reduce base resistor and parasitical EB capacitor. Very low collector resistor benefits from BP layer. PNP transistor can be Isolated from other CMOS and NPN devices by BNwell, Nwell and BN+ junction.
    • 用于高性能SiGe CBiCMOS工艺的自对准垂直PNP晶体管的结构和工艺。 实施例包括具有高性能SiGe NPN晶体管和PNP晶体管的SiGe CBiCMOS。 由于PNP晶体管和NPN晶体管包含不同类型的杂质分布,因此每个晶体管需要单独的光刻和掺杂步骤。 该过程易于与现有的CMOS工艺集成,以节省制造时间和成本。 作为插件模块,与SiGe BiCMOS工艺完全集成。 高掺杂多晶硅发射器可以增加从发射极到基极的空穴注入效率,减少发射极电阻,并形成非常浅的EB结。 自对准N +基极植入可以减少基极电阻和寄生EB电容。 极低的集电极电阻受益于BP层。 PNP晶体管可以通过BNwell,Nwell和BN +结与其他CMOS和NPN器件隔离。