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    • 2. 发明授权
    • Test structure for detecting bonding-induced cracks
    • 用于检测接合引起的裂纹的测试结构
    • US06781150B2
    • 2004-08-24
    • US10229601
    • 2002-08-28
    • Qwai H. LowRamaswamy RanganathanAnwar AliTauman T. Lau
    • Qwai H. LowRamaswamy RanganathanAnwar AliTauman T. Lau
    • H01L2358
    • H01L24/05H01L22/34H01L24/48H01L2224/04042H01L2224/05001H01L2224/05073H01L2224/05093H01L2224/05095H01L2224/05624H01L2224/48463H01L2224/85399H01L2924/00014H01L2924/01013H01L2924/01019H01L2924/01029H01L2924/14H01L2224/45099H01L2924/00
    • An integrated circuit having a crack detection structure. A control structure is formed having interleaved electrically conductive layers and non electrically conductive layers in a vertical orientation. Electrically conductive vias are disposed vertically through all of the non electrically conductive layers, which vias electrically connect all of the electrically conductive layers one to another. A test structure is formed having a bonding pad for probing and bonding, with underlying interleaved electrically conductive layers and non electrically conductive layers disposed in a vertical orientation. At least one of the non electrically conductive layers has no vias formed therein, simulating active circuitry under other bonding pads of the integrated circuit. At least one of the interleaved electrically conductive layers of the control structure extends from within the control structure to within the test structure as a sensing layer. The sensing layer immediately underlies the at least one of the non electrically conductive layers in the test structure that has no vias formed therein. Thus, a crack in the at least one of the non electrically conductive layers in the test structure that has no vias formed therein is detectable as a leakage current between the bonding pad of the test structure and a top most electrically conductive layer of the control structure.
    • 具有裂纹检测结构的集成电路。 形成具有垂直取向的交错导电层和非导电层的控制结构。 导电通孔垂直地设置在所有非导电层上,通孔将所有的导电层彼此电连接。 形成具有用于探测和结合的接合焊盘的测试结构,其中底层交错的导电层和以垂直取向设置的非导电层。 非导电层中的至少一个在其中没有形成通孔,模拟集成电路的其它接合焊盘下的有源电路。 控制结构的交错导电层中的至少一个从控制结构内延伸到作为感测层的测试结构内。 感测层紧邻在其中形成有通孔的测试结构中的非导电层中的至少一个之上。 因此,测试结构中没有形成通孔的非导电层中的至少一个的裂纹可以被检测为在测试结构的焊盘与控制结构的最高导电层之间的漏电流 。
    • 5. 发明授权
    • Test structure for detecting bonding-induced cracks
    • 用于检测接合引起的裂纹的测试结构
    • US06998638B2
    • 2006-02-14
    • US10856213
    • 2004-05-28
    • Qwai H. LowRamaswamy RanganathanAnwar AliTauman T. Lau
    • Qwai H. LowRamaswamy RanganathanAnwar AliTauman T. Lau
    • H01L23/58
    • H01L24/05H01L22/34H01L24/48H01L2224/04042H01L2224/05001H01L2224/05073H01L2224/05093H01L2224/05095H01L2224/05624H01L2224/48463H01L2224/85399H01L2924/00014H01L2924/01013H01L2924/01019H01L2924/01029H01L2924/14H01L2224/45099H01L2924/00
    • An integrated circuit having a crack detection structure. A control structure is formed having interleaved electrically conductive layers and non electrically conductive layers in a vertical orientation. Electrically conductive vias are disposed vertically through all of the non electrically conductive layers, which vias electrically connect all of the electrically conductive layers one to another. A test structure is formed having a bonding pad for probing and bonding, with underlying interleaved electrically conductive layers and non electrically conductive layers disposed in a vertical orientation. At least one of the non electrically conductive layers has no vias formed therein, simulating active circuitry under other bonding pads of the integrated circuit. At least one of the interleaved electrically conductive layers of the control structure extends from within the control structure to within the test structure as a sensing layer. The sensing layer immediately underlies the at least one of the non electrically conductive layers in the test structure that has no vias formed therein. Thus, a crack in the at least one of the non electrically conductive layers in the test structure that has no vias formed therein is detectable as a leakage current between the bonding pad of the test structure and a top most electrically conductive layer of the control structure.
    • 具有裂纹检测结构的集成电路。 形成具有垂直取向的交错导电层和非导电层的控制结构。 导电通孔垂直地设置在所有非导电层上,通孔将所有的导电层彼此电连接。 形成具有用于探测和结合的接合焊盘的测试结构,其中底层交错的导电层和以垂直取向设置的非导电层。 非导电层中的至少一个在其中没有形成通孔,模拟集成电路的其它接合焊盘下的有源电路。 控制结构的交错导电层中的至少一个从控制结构内延伸到作为感测层的测试结构内。 感测层紧邻在其中形成有通孔的测试结构中的非导电层中的至少一个之上。 因此,测试结构中没有形成通孔的非导电层中的至少一个的裂纹可以被检测为在测试结构的焊盘与控制结构的最高导电层之间的漏电流 。
    • 8. 发明授权
    • Integrated circuit having dedicated probe pads for use in testing densely patterned bonding pads
    • 具有用于测试密集图案化焊盘的专用探针焊盘的集成电路
    • US06573113B1
    • 2003-06-03
    • US09946033
    • 2001-09-04
    • Qwai H. LowWilliam T. Bright, IIRamaswamy Ranganathan
    • Qwai H. LowWilliam T. Bright, IIRamaswamy Ranganathan
    • H01L2166
    • H01L22/32G01R31/2886H01L24/05H01L2224/0392H01L2224/05552H01L2224/05554H01L2224/45144H01L2924/14H01L2924/00
    • An integrated circuit topography is provided which includes at least two rows of bonding pads. Each row of bonding pads is attributed a row of probe pads. One row of probe pads is contained within the scribe area and suffices as a sacrificial row of probe pads. The other row of probe pads is placed toward the interior of the integrated circuit. The rows of bonding pads and probe pads extend along parallel axis around all four sides of the integrated circuit. Every other bonding pad within one row of bonding pads is connected to every other probe pad within the scribe area, and every other bonding pad within the other rows of bonding pads is connected to every probe pad within the row of probe pads interior to the integrated circuit. This allows a fan-out configuration of the bonding pads to probe pads for purposes of probing electrical performance of the integrated circuit without having to use selected ones of the bonding pads. This prevents jeopardizing the integrity of the bonding pad by gouging out the bonding pad during probe operation. Moreover, thicker probe needles can be used, and placed in a less dense fashion around the outer perimeter of the integrated circuit.
    • 提供了一种集成电路形貌,其包括至少两排接合焊盘。 每排接合焊盘归因于一排探针焊盘。 一排探针垫被包含在划线区域内,并且足以作为牺牲排的探针垫。 另一排探针垫朝向集成电路的内部放置。 接合焊盘和探针焊盘的行围绕集成电路的所有四个边沿平行轴延伸。 一排接合焊盘内的每个其他接合焊盘都连接到划线区内的每隔一个探头焊盘,另一排接合焊盘内的每个其他接合焊盘连接到集成的内部的探针焊盘内的每个探针焊盘 电路。 为了探测集成电路的电气性能而不必使用选定的接合焊盘,这允许焊盘的扇出配置探针焊盘。 这可以防止在探针操作期间通过焊接焊盘来破坏接合焊盘的完整性。 此外,可以使用较厚的探针,并且围绕集成电路的外周边以较不密集的方式放置。
    • 10. 发明授权
    • Test structure
    • 测试结构
    • US06861748B2
    • 2005-03-01
    • US10298971
    • 2002-11-18
    • Qwai H. LowRamaswamy RanganathanRey Torcuato
    • Qwai H. LowRamaswamy RanganathanRey Torcuato
    • H01L23/544H01L23/48H01L23/52H01L29/40
    • H01L22/34H01L2224/45144H01L2224/48463H01L2924/00
    • A test structure for an integrated circuit having a first underlying conductive layer. A first nonconductive layer is disposed over the first underlying conductive layer, and a first overlying conductive layer is disposed over the first nonconductive layer. First conductive vias form electrical connections between the first underlying conductive layer and the first overlying conductive layer. A second overlying conductive layer is disposed over the first nonconductive layer, but the second overlying conductive layer does not make electrical connections to the first underlying conductive layer. The test structure also has a second underlying conductive layer. A second nonconductive layer is disposed over the second underlying conductive layer, with a third overlying conductive layer disposed over the second nonconductive layer. The third overlying conductive layer does not make electrical connections to the second underlying conductive layer. A fourth overlying conductive layer is disposed over the second nonconductive layer, and second conductive vias form electrical connections between the second underlying conductive layer and the fourth overlying conductive layer. First conductive traces form electrical connections between the first overlying conductive layer and the third conductive layer, and second conductive traces form electrical connections between the second overlying conductive layer and the fourth conductive layer.
    • 一种用于具有第一底层导电层的集成电路的测试结构。 第一非导电层设置在第一下导电层上,并且第一上覆导电层设置在第一非导电层上。 第一导电通孔在第一底层导电层和第一上覆导电层之间形成电连接。 第二覆盖导电层设置在第一非导电层上,但是第二覆盖导电层不与第一下面的导电层形成电连接。 测试结构还具有第二底层导电层。 第二非导电层设置在第二下导电层之上,第三覆盖导电层设置在第二非导电层上。 第三覆盖导电层不与第二底层导电层形成电连接。 第四覆盖导电层设置在第二非导电层上,第二导电通孔在第二下导电层和第四覆盖导电层之间形成电连接。 第一导电迹线在第一覆盖导电层和第三导电层之间形成电连接,第二导电迹线在第二覆盖导电层和第四导电层之间形成电连接。