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
    • 32. 发明授权
    • Method of manufacturing copper interconnect with top barrier layer
    • 制造具有顶部阻挡层的铜互连的方法
    • US5744376A
    • 1998-04-28
    • US630709
    • 1996-04-08
    • Lap ChanJia Zhen Zheng
    • Lap ChanJia Zhen Zheng
    • H01L21/768H01L23/532H01L21/28
    • H01L21/76834H01L21/76843H01L23/53238H01L2924/0002
    • A structure and method for making copper interconnections in an integrated circuit are described. The structure is a damascene copper connector whose upper surface is coplanar with the upper surface of the insulating layer in which it is embedded. Out-diffusion of copper from the connector is prevented by two barrier layers. One is located at the interface between the connector and the insulating layer ,while the second barrier is an insulating layer which covers the upper surface of the connector. The damascene process involves filling a trench in the surface of the insulator with copper and then removing the excess by chem.-mech. polishing. Since photoresist is never in direct contact with the copper the problem of copper oxidation during resist ashing has been effectively eliminated.
    • 描述了在集成电路中制造铜互连的结构和方法。 该结构是镶嵌铜连接器,其上表面与嵌入其中的绝缘层的上表面共面。 通过两个阻挡层防止铜从连接器的扩散。 一个位于连接器和绝缘层之间的界面处,而第二屏障是覆盖连接器的上表面的绝缘层。 镶嵌工艺包括用铜填充绝缘体表面的沟槽,然后通过化学去除多余的沟槽。 抛光。 由于光致抗蚀剂从不与铜直接接触,因此已经有效地消除了抗蚀剂灰化期间铜氧化的问题。
    • 35. 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。
    • 38. 发明申请
    • Method of making direct contact on gate by using dielectric stop layer
    • 通过使用介电阻挡层在栅极上直接接触的方法
    • US20050136573A1
    • 2005-06-23
    • US11045958
    • 2005-01-28
    • Purakh RajvermaSanford ChuLap ChanYelehanka Ramachandramurthy PradeepKai ShaoJia Zheng
    • Purakh RajvermaSanford ChuLap ChanYelehanka Ramachandramurthy PradeepKai ShaoJia Zheng
    • H01L21/00H01L21/3205H01L21/336H01L21/4763H01L21/768H01L21/84H01L29/76H01L29/94H01L31/062H01L31/113H01L31/119
    • 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。