ELECTRICAL TEST STRUCTURE AND METHOD FOR CHARACTERIZATION OF DEEP TRENCH SIDEWALL RELIABILITY
    2.
    发明申请
    ELECTRICAL TEST STRUCTURE AND METHOD FOR CHARACTERIZATION OF DEEP TRENCH SIDEWALL RELIABILITY 有权
    电气测试结构及其深度稳定性可靠性特征的方法

    公开(公告)号:US20090206865A1

    公开(公告)日:2009-08-20

    申请号:US12212289

    申请日:2008-09-17

    Abstract: A test structure and testing method are provided for characterizing the time-dependent drift in the parasitic PFET leakage current that flows along the sidewall of a deep trench isolation structure from the P-type active area to the P-type substrate in a semiconductor integrated circuit structure. The capacitive coupling characteristics of the deep trench isolation structure are used to control the electrical “bias” of the deep trench structure through the use of a large auxiliary trench mesh network that is formed as part of the deep trench structure. The trench mesh network can be placed adjacent to a Vdd ring or a ground ring and then, by using a ratioed capacitive voltage dividing network, the electrical potential at the trench can be controlled.

    Abstract translation: 提供了一种测试结构和测试方法,用于表征在半导体集成电路中沿着深沟槽隔离结构的侧壁从P型有源区流向P型衬底的寄生PFET漏电流中的时间依赖性漂移 结构体。 深沟槽隔离结构的电容耦合特性用于通过使用形成为深沟槽结构的一部分的大的辅助沟槽网状网来控制深沟槽结构的电“偏置”。 沟槽网状网络可以靠近Vdd环或接地环放置,然后通过使用比例的电容分压网络,可以控制沟槽处的电位。

    Method of measuring the leakage current of a deep trench isolation structure
    3.
    发明授权
    Method of measuring the leakage current of a deep trench isolation structure 有权
    测量深沟槽隔离结构的漏电流的方法

    公开(公告)号:US07298159B1

    公开(公告)日:2007-11-20

    申请号:US11176994

    申请日:2005-07-07

    CPC classification number: G01R31/2623

    Abstract: The trench leakage current of a deep trench isolation structure is measured. The deep trench isolation structure, which is filled with polysilicon, contacts both a first region of a first conductivity type and a second region of a second conductivity type, and is proximate to a third region of the first conductivity type formed in the second region. Test voltages are applied to the structures and the leakage current is measured.

    Abstract translation: 测量深沟槽隔离结构的沟槽漏电流。 填充有多晶硅的深沟槽隔离结构与第一导电类型的第一区域和第二导电类型的第二区域接触,并且接近形成在第二区域中的第一导电类型的第三区域。 对结构施加测试电压,并测量泄漏电流。

    Vertical photodiode with heavily-doped regions of alternating conductivity types
    5.
    发明授权
    Vertical photodiode with heavily-doped regions of alternating conductivity types 有权
    具有交替导电类型的重掺杂区域的垂直光电二极管

    公开(公告)号:US07105373B1

    公开(公告)日:2006-09-12

    申请号:US10640963

    申请日:2003-08-14

    CPC classification number: H01L31/028 H01L31/103 Y02E10/547

    Abstract: A single junction interdigitated photodiode utilizes a stack of alternating highly doped first regions of a first conductivity type and highly doped second regions of a second conductivity type, which are formed below and contact the first regions, to collect photons. In addition, a highly doped sinker of a first conductivity type contacts each first region, and a highly doped sinker of a second conductivity type contacts each second region.

    Abstract translation: 单结交叉光电二极管利用第一导电类型的交替的高度掺杂的第一区域和第二导电类型的高度掺杂的第二区域的堆叠,其在下面形成并接触第一区域以收集光子。 此外,第一导电类型的高掺杂沉降片接触每个第一区域,并且第二导电类型的高掺杂沉降片接触每个第二区域。

    Wedge-shaped high density capacitor and method of making the capacitor
    7.
    发明授权
    Wedge-shaped high density capacitor and method of making the capacitor 有权
    楔形高密度电容器和制造电容器的方法

    公开(公告)号:US06639784B1

    公开(公告)日:2003-10-28

    申请号:US10283810

    申请日:2002-10-30

    CPC classification number: H01L28/91 H01L27/0805

    Abstract: A capacitor structure is formed in a wedge-shaped trench by forming alternating layers of insulating material and conductive material in the trench such that each layer of conductive material formed in the trench is electrically isolated from adjacent layers of conductive material formed in the trench. A first electrical contact is formed to electrically link in parallel a first set of alternating layers of conductive material. A second electrical contact is formed to electrically link in parallel a second set of alternating layers of conductive material. The two electrically isolated sets of inter-linked layers of conductive material define the interdigitated capacitor structure.

    Abstract translation: 电容器结构通过在沟槽中形成绝缘材料和导电材料的交替层而形成在楔形沟槽中,使得形成在沟槽中的每个导电材料层与在沟槽中形成的导电材料的相邻层电隔离。 形成第一电接触以平行地电连接导电材料的第一组交替层。 形成第二电接触以平行地电连接第二组交替的导电材料层。 导电材料的两个电隔离的相互连接的层限定了交叉指向的电容器结构。

    Electrical test structure and method for characterization of deep trench sidewall reliability
    8.
    发明授权
    Electrical test structure and method for characterization of deep trench sidewall reliability 有权
    用于表征深沟侧壁可靠性的电气测试结构和方法

    公开(公告)号:US07960998B2

    公开(公告)日:2011-06-14

    申请号:US12212289

    申请日:2008-09-17

    Abstract: A test structure and testing method are provided for characterizing the time-dependent drift in the parasitic PFET leakage current that flows along the sidewall of a deep trench isolation structure from the P-type active area to the P-type substrate in a semiconductor integrated circuit structure. The capacitive coupling characteristics of the deep trench isolation structure are used to control the electrical “bias” of the deep trench structure through the use of a large auxiliary trench mesh network that is formed as part of the deep trench structure. The trench mesh network can be placed adjacent to a Vdd ring or a ground ring and then, by using a ratioed capacitive voltage dividing network, the electrical potential at the trench can be controlled.

    Abstract translation: 提供了一种测试结构和测试方法,用于表征在半导体集成电路中沿着深沟槽隔离结构的侧壁从P型有源区流向P型衬底的寄生PFET漏电流中的时间依赖性漂移 结构体。 深沟槽隔离结构的电容耦合特性用于通过使用形成为深沟槽结构的一部分的大的辅助沟槽网状网来控制深沟槽结构的电“偏置”。 沟槽网状网络可以靠近Vdd环或接地环放置,然后通过使用比例的电容分压网络,可以控制沟槽处的电位。

    System and method for providing a poly cap and a no field oxide area to prevent formation of a vertical bird's beak structure in the manufacture of a semiconductor device
    9.
    发明授权
    System and method for providing a poly cap and a no field oxide area to prevent formation of a vertical bird's beak structure in the manufacture of a semiconductor device 有权
    用于提供聚盖和无场氧化物区域以防止在半导体器件的制造中形成垂直鸟嘴结构的系统和方法

    公开(公告)号:US07488647B1

    公开(公告)日:2009-02-10

    申请号:US11201761

    申请日:2005-08-11

    CPC classification number: H01L21/763 H01L21/76202

    Abstract: A system and method is disclosed that prevents the formation of a vertical bird's beak structure in the manufacture of a semiconductor device. A polysilicon filled trench is formed in a substrate of the semiconductor device. One or more composite layers are then applied over the trench and the substrate. A mask and etch process is then applied to etch the composite layers adjacent to the polysilicon filled trench. A field oxide process is applied to form field oxide portions in the substrate adjacent to the trench. Because no field oxide is placed over the trench there is no formation of a vertical bird's beak structure. A gate oxide layer is applied and a protection cap is formed over the polysilicon filled trench to protect the trench from unwanted effects of subsequent processing steps.

    Abstract translation: 公开了一种系统和方法,其防止在制造半导体器件时形成垂直鸟喙结构。 在半导体器件的衬底中形成多晶硅填充沟槽。 然后将一个或多个复合层施加在沟槽和衬底上。 然后施加掩模和蚀刻工艺以蚀刻与多晶硅填充沟槽相邻的复合层。 施加场氧化物工艺以在与沟槽相邻的衬底中形成场氧化物部分。 由于没有将场氧化物放置在沟槽上,所以没有形成垂直鸟的喙结构。 施加栅极氧化物层,并且在多晶硅填充的沟槽上形成保护帽,以保护沟槽免受后续处理步骤的不期望的影响。

Patent Agency Ranking