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    • 2. 发明授权
    • Structure of a CMOS image sensor and method for fabricating the same
    • CMOS图像传感器的结构及其制造方法
    • US07400003B2
    • 2008-07-15
    • US10998803
    • 2004-11-30
    • Soo-Geun LeeKi-Chul ParkKyoung-Woo Lee
    • Soo-Geun LeeKi-Chul ParkKyoung-Woo Lee
    • H01L31/062
    • H01L23/53238G01R31/2829H01L21/76805H01L27/14603H01L27/14623H01L27/14627H01L27/14636H01L27/14687H01L31/022408H01L2924/0002H04N17/002H01L2924/00
    • An image sensor device and method for forming the same include a photodiode formed in a substrate, at least one electrical interconnection line electrically associated with the photodiode, a light passageway having a light inlet, the light passageway being positioned in alignment with the photodiode, a color filter positioned over the light inlet of the light passageway and a lens positioned over the color filter in alignment with the light passageway wherein the at least one electrical interconnection line includes a copper interconnection formation having a plurality of interlayer dielectric layers in a stacked configuration with a diffusion barrier layer between adjacent interlayer dielectric layers, and a barrier metal layer between the copper interconnection formation and the plurality of interlayer dielectric layers and intervening diffusion barrier layers. An image sensor device may employ copper interconnections if a barrier metal layer is removed from above a photodiode.
    • 图像传感器装置及其形成方法包括形成在基板中的光电二极管,与光电二极管电连接的至少一个电互连线,具有光入口的光通路,光通路与光电二极管对准, 位于光通道的光入口之上的滤色器和位于滤光器上的透镜与光通路对准,其中至少一个电互连线包括铜互连结构,铜互连结构具有层叠形式的多个层间电介质层, 相邻的层间电介质层之间的扩散阻挡层和铜互连结构与多个层间电介质层之间的阻挡金属层以及介于其间的扩散阻挡层。 如果从光电二极管上方去除阻挡金属层,则图像传感器装置可以采用铜互连。
    • 5. 发明申请
    • Methods of forming dual-damascene interconnect structures on semiconductor substrates using multiple planarization layers having different porosity characteristics
    • 使用具有不同孔隙率特性的多个平坦化层在半导体衬底上形成双镶嵌互连结构的方法
    • US20070184649A1
    • 2007-08-09
    • US11348428
    • 2006-02-06
    • Kyoung-Woo LeeSeung-Man ChoiJa-Hum KuKi-Chul ParkSun Kim
    • Kyoung-Woo LeeSeung-Man ChoiJa-Hum KuKi-Chul ParkSun Kim
    • H01L21/4763
    • H01L21/76808H01L21/31144
    • Methods of forming integrated circuit devices include patterning an electrically insulating layer to support dual-damascene interconnect structures therein. The steps of patterning the electrically insulating layer include using multiple planarization layers having different porosity characteristics. Forming an interconnect structure within an integrated circuit device may include forming an electrically insulating layer on a substrate and forming at least one via hole extending at least partially through the electrically insulating layer. The at least one via hole is filled with a first electrically insulating material having a first porosity. The filled at least one via hole is then covered with a second electrically insulating material layer having a second porosity lower than the first porosity. The second electrically insulating material layer is selectively etched back to expose a first portion of the first electrically insulating material in the at least one via hole. The electrically insulating layer is selectively etched to define a trench therein that exposes a second portion of the first electrically insulating material in the at least one via hole. The first electrically insulating material, which has a relatively high degree of porosity, is then removed from the at least one via hole. This removal step may be performed using a relatively mild ashing process because of the high porosity of the first electrically insulating material.
    • 形成集成电路器件的方法包括图案化电绝缘层以支持其中的双镶嵌互连结构。 图案化电绝缘层的步骤包括使用具有不同孔隙特性的多个平坦化层。 在集成电路器件内形成互连结构可以包括在衬底上形成电绝缘层,并形成至少部分穿过电绝缘层延伸的至少一个通孔。 至少一个通孔填充有具有第一孔隙率的第一电绝缘材料。 填充的至少一个通孔然后被具有低于第一孔隙率的第二孔隙率的第二电绝缘材料层覆盖。 选择性地回蚀第二电绝缘材料层以暴露至少一个通孔中的第一电绝缘材料的第一部分。 电绝缘层被选择性蚀刻以在其中限定其中的沟槽,其暴露出至少一个通孔中的第一电绝缘材料的第二部分。 然后从该至少一个通孔去除具有较高孔隙率的第一电绝缘材料。 由于第一电绝缘材料的高孔隙率,该去除步骤可以使用相对温和的灰化过程进行。
    • 6. 发明授权
    • Methods of forming dual-damascene interconnect structures on semiconductor substrates using multiple planarization layers having different porosity characteristics
    • 使用具有不同孔隙率特性的多个平坦化层在半导体衬底上形成双镶嵌互连结构的方法
    • US07365025B2
    • 2008-04-29
    • US11348428
    • 2006-02-06
    • Kyoung-Woo LeeSeung-Man ChoiJa-Hum KuKi-Chul ParkSun Oo Kim
    • Kyoung-Woo LeeSeung-Man ChoiJa-Hum KuKi-Chul ParkSun Oo Kim
    • H01L21/311
    • H01L21/76808H01L21/31144
    • Methods of forming integrated circuit devices include patterning an electrically insulating layer to support dual-damascene interconnect structures therein. The steps of patterning the electrically insulating layer include using multiple planarization layers having different porosity characteristics. Forming an interconnect structure within an integrated circuit device may include forming an electrically insulating layer on a substrate and forming at least one via hole extending at least partially through the electrically insulating layer. The at least one via hole is filled with a first electrically insulating material having a first porosity. The filled at least one via hole is then covered with a second electrically insulating material layer having a second porosity lower than the first porosity. The second electrically insulating material layer is selectively etched back to expose a first portion of the first electrically insulating material in the at least one via hole. The electrically insulating layer is selectively etched to define a trench therein that exposes a second portion of the first electrically insulating material in the at least one via hole.
    • 形成集成电路器件的方法包括图案化电绝缘层以支持其中的双镶嵌互连结构。 图案化电绝缘层的步骤包括使用具有不同孔隙特性的多个平坦化层。 在集成电路器件内形成互连结构可以包括在衬底上形成电绝缘层,并形成至少部分穿过电绝缘层延伸的至少一个通孔。 至少一个通孔填充有具有第一孔隙率的第一电绝缘材料。 填充的至少一个通孔然后被具有低于第一孔隙率的第二孔隙率的第二电绝缘材料层覆盖。 选择性地回蚀第二电绝缘材料层以暴露至少一个通孔中的第一电绝缘材料的第一部分。 电绝缘层被选择性蚀刻以在其中限定其中的沟槽,其暴露出至少一个通孔中的第一电绝缘材料的第二部分。