Methods of fabricating semiconductor device having slope at lower sides of interconnection hole with etch-stop layer
    2.
    发明授权
    Methods of fabricating semiconductor device having slope at lower sides of interconnection hole with etch-stop layer 有权
    制造具有蚀刻停止层的互连孔下侧具有斜面的半导体器件的方法

    公开(公告)号:US07534720B2

    公开(公告)日:2009-05-19

    申请号:US11608500

    申请日:2006-12-08

    IPC分类号: H01L21/4763

    摘要: Methods of manufacturing semiconductor devices having slopes at lower sides of an interconnection hole include an etch-stop layer and an interlayer dielectric layer sequentially formed on a semiconductor substrate having the lower conductive layer. Portions of the etch-stop layer are exposed by selectively etching the interlayer dielectric layer. A step is formed in the etch-stop layer by removing portions of the exposed etch-stop layer. And, the step is formed at a boundary between a recessed portion of the exposed etch-stop layer and a raised portion of the etch-stop layer covered with the interlayer dielectric layer. Portions of the interlayer dielectric layer are removed to expose portions of the raised portion of the etch-stop layer. And, the exposed recessed and raised portions are anisotropically etched to expose the lower conductive layer and to form the interconnection hole having the slopes, wherein the slopes are made of a residual etch-stop layer at the lower sides of the interconnection hole.

    摘要翻译: 制造在互连孔的下侧具有斜面的半导体器件的方法包括依次形成在具有下导电层的半导体衬底上的蚀刻停止层和层间电介质层。 蚀刻停止层的一部分通过选择性蚀刻层间电介质层而被曝光。 通过去除暴露的蚀刻停止层的部分,在蚀刻停止层中形成台阶。 并且,该步骤形成在暴露的蚀刻停止层的凹陷部分和被层间介电层覆盖的蚀刻停止层的凸起部分之间的边界处。 去除层间绝缘层的一部分以暴露蚀刻停止层的凸起部分的部分。 并且,各向异性蚀刻暴露的凹部和凸起部分以暴露下导电层并形成具有斜面的互连孔,其中斜面由互连孔的下侧的残留蚀刻停止层制成。

    METHODS OF FABRICATING SEMICONDUCTOR DEVICE HAVING SLOPE AT LOWER SIDES OF INTERCONNECTION HOLE WITH ETCH-STOP LAYER
    3.
    发明申请
    METHODS OF FABRICATING SEMICONDUCTOR DEVICE HAVING SLOPE AT LOWER SIDES OF INTERCONNECTION HOLE WITH ETCH-STOP LAYER 有权
    在具有阻塞层的互连孔的下侧制作具有斜面的半导体器件的方法

    公开(公告)号:US20070082484A1

    公开(公告)日:2007-04-12

    申请号:US11608500

    申请日:2006-12-08

    IPC分类号: H01L21/4763

    摘要: Methods of manufacturing semiconductor devices having slopes at lower sides of an interconnection hole include an etch-stop layer and an interlayer dielectric layer sequentially formed on a semiconductor substrate having the lower conductive layer. Portions of the etch-stop layer are exposed by selectively etching the interlayer dielectric layer. A step is formed in the etch-stop layer by removing portions of the exposed etch-stop layer. And, the step is formed at a boundary between a recessed portion of the exposed etch-stop layer and a raised portion of the etch-stop layer covered with the interlayer dielectric layer. Portions of the interlayer dielectric layer are removed to expose portions of the raised portion of the etch-stop layer. And, the exposed recessed and raised portions are anisotropically etched to expose the lower conductive layer and to form the interconnection hole having the slopes, wherein the slopes are made of a residual etch-stop layer at the lower sides of the interconnection hole.

    摘要翻译: 制造在互连孔的下侧具有斜面的半导体器件的方法包括依次形成在具有下导电层的半导体衬底上的蚀刻停止层和层间电介质层。 蚀刻停止层的一部分通过选择性蚀刻层间电介质层而被曝光。 通过去除暴露的蚀刻停止层的部分,在蚀刻停止层中形成台阶。 并且,该步骤形成在暴露的蚀刻停止层的凹陷部分和被层间介电层覆盖的蚀刻停止层的凸起部分之间的边界处。 去除层间绝缘层的一部分以暴露蚀刻停止层的凸起部分的部分。 并且,各向异性蚀刻暴露的凹部和凸起部分以暴露下导电层并形成具有斜面的互连孔,其中斜面由互连孔的下侧的残留蚀刻停止层制成。

    Methods of fabricating semiconductor device having slope at lower sides of interconnection hole with etch-stop layer
    4.
    发明申请
    Methods of fabricating semiconductor device having slope at lower sides of interconnection hole with etch-stop layer 有权
    制造具有蚀刻停止层的互连孔下侧具有斜面的半导体器件的方法

    公开(公告)号:US20050054192A1

    公开(公告)日:2005-03-10

    申请号:US10910922

    申请日:2004-08-04

    摘要: Methods of manufacturing semiconductor devices having slopes at lower sides of an interconnection hole include an etch-stop layer and an interlayer dielectric layer sequentially formed on a semiconductor substrate having the lower conductive layer. Portions of the etch-stop layer are exposed by selectively etching the interlayer dielectric layer. A step is formed in the etch-stop layer by removing portions of the exposed etch-stop layer. And, the step is formed at a boundary between a recessed portion of the exposed etch-stop layer and a raised portion of the etch-stop layer covered with the interlayer dielectric layer. Portions of the interlayer dielectric layer are removed to expose portions of the raised portion of the etch-stop layer. And, the exposed recessed and raised portions are anisotropically etched to expose the lower conductive layer and to form the interconnection hole having the slopes, wherein the slopes are made of a residual etch-stop layer at the lower sides of the interconnection hole.

    摘要翻译: 制造在互连孔的下侧具有斜面的半导体器件的方法包括依次形成在具有下导电层的半导体衬底上的蚀刻停止层和层间电介质层。 蚀刻停止层的一部分通过选择性蚀刻层间电介质层而被曝光。 通过去除暴露的蚀刻停止层的部分,在蚀刻停止层中形成台阶。 并且,该步骤形成在暴露的蚀刻停止层的凹陷部分和被层间介电层覆盖的蚀刻停止层的凸起部分之间的边界处。 去除层间绝缘层的一部分以暴露蚀刻停止层的凸起部分的部分。 并且,各向异性蚀刻暴露的凹部和凸起部分以暴露下导电层并形成具有斜面的互连孔,其中斜面由互连孔的下侧的残留蚀刻停止层制成。

    High Voltage Cascoded III-Nitride Rectifier Package with Stamped Leadframe
    5.
    发明申请
    High Voltage Cascoded III-Nitride Rectifier Package with Stamped Leadframe 有权
    高压Cascoded III-Nitride整流器封装带有冲压引线框架

    公开(公告)号:US20120280245A1

    公开(公告)日:2012-11-08

    申请号:US13364189

    申请日:2012-02-01

    IPC分类号: H01L29/778 H01L21/56

    摘要: Some exemplary embodiments of high voltage cascoded III-nitride semiconductor package with a stamped leadframe have been disclosed. One exemplary embodiment comprises a III-nitride transistor having an anode of a diode stacked atop a source of the III-nitride transistor, and a stamped leadframe comprising a first bent lead coupled to a gate of the III-nitride transistor and the anode of the diode, and a second bent lead coupled to a drain of the III-nitride transistor. The bent leads expose respective flat portions that are surface mountable. In this manner, reduced package footprint, improved surge current capability, and higher performance may be achieved compared to conventional wire bonded packages. Furthermore, since multiple packages may be assembled at a time, high integration and cost savings may be achieved compared to conventional methods requiring individual package processing and externally sourced parts.

    摘要翻译: 已经公开了具有冲压引线框架的高压级联III族氮化物半导体封装的一些示例性实施例。 一个示例性实施例包括III族氮化物晶体管,其具有堆叠在III族氮化物晶体管的源极之上的二极管的阳极,以及冲压引线框架,包括耦合到III族氮化物晶体管的栅极的第一弯曲引线和 二极管和耦合到III族氮化物晶体管的漏极的第二弯曲引线。 弯曲的引线暴露可表面安装的各个平坦部分。 以这种方式,与传统的导线接合封装相比,可以实现减小的封装占地面积,改进的浪涌电流能力和更高的性能。 此外,由于可以一次组装多个封装,与需要单独封装处理和外部来源部件的常规方法相比,可以实现高集成度和成本节省。

    High Voltage Cascoded III-Nitride Rectifier Package with Etched Leadframe
    10.
    发明申请
    High Voltage Cascoded III-Nitride Rectifier Package with Etched Leadframe 有权
    具有蚀刻引线框架的高压Cascoded III-氮化物整流器封装

    公开(公告)号:US20120280246A1

    公开(公告)日:2012-11-08

    申请号:US13364219

    申请日:2012-02-01

    IPC分类号: H01L23/34 H01L21/60 H01L27/06

    摘要: Some exemplary embodiments of high voltage cascaded III-nitride semiconductor package with an etched leadframe have been disclosed. One exemplary embodiment comprises a III-nitride transistor having an anode of a diode stacked over a source of the III-nitride transistor, and a leadframe that is etched to form a first leadframe paddle portion coupled to a gate of the III-nitride transistor and the anode of the diode, and a second leadframe paddle portion coupled to a drain of the III-nitride transistor. The leadframe paddle portions enable the package to be surface mountable. In this manner, reduced package footprint, improved surge current capability, and higher performance may be achieved compared to conventional wire bonded packages. Furthermore, since multiple packages may be assembled at a time, high integration and cost savings may be achieved compared to conventional methods requiring individual package processing and externally sourced parts.

    摘要翻译: 已经公开了具有蚀刻引线框架的高压级联III族氮化物半导体封装的一些示例性实施例。 一个示例性实施例包括具有堆叠在III族氮化物晶体管的源极上的二极管的阳极的III族氮化物晶体管,以及被蚀刻以形成耦合到III族氮化物晶体管的栅极的第一引线框桨形部分的引线框架,以及 二极管的阳极和耦合到III族氮化物晶体管的漏极的第二引线框桨形部分。 引导框桨形部分使封装能够可表面安装。 以这种方式,与传统的导线接合封装相比,可以实现减小的封装占地面积,改进的浪涌电流能力和更高的性能。 此外,由于可以一次组装多个封装,与需要单独封装处理和外部来源部件的常规方法相比,可以实现高集成度和成本节省。