公开(公告)号：US20140158885A1

公开(公告)日：2014-06-12

申请号：US14156140

申请日：2014-01-15

Applicant: EBARA CORPORATION

Inventor： Nobuharu Noji ,  Tohru Satake ,  Hirosi Sobukawa ,  Toshifumi Kimba ,  Masahiro Hatakeyama ,  Shoji Yoshikawa ,  Takeshi Murakami ,  Kenji Watanabe ,  Tsutomu Karimata ,  Kenichi Suematsu ,  Yutaka Tabe ,  Ryo Tajima ,  Keiichi Tohyama

IPC: G01N23/225

CPC classification number: H01J37/20 ,  G01N23/2204 ,  G01N23/225 ,  H01J37/05 ,  H01J37/28 ,  H01J2237/202 ,  H01J2237/2441 ,  H01J2237/2446 ,  H01J2237/2801 ,  H01J2237/2817 ,  H01L21/6833 ,  H01L2223/54466

Abstract: A system for further enhancing speed, i.e. improving throughput in a SEM-type inspection apparatus is provided. An inspection apparatus for inspecting a surface of a substrate produces a crossover from electrons emitted from an electron beam source 25•1, then forms an image under a desired magnification in the direction of a sample W to produce a crossover. When the crossover is passed, electrons as noises are removed from the crossover with an aperture, an adjustment is made so that the crossover becomes a parallel electron beam to irradiate the substrate in a desired sectional form. The electron beam is produced such that the unevenness of illuminance is 10% or less. Electrons emitted from the sample W are detected by a detector 25•11.

Abstract translation: 提供了一种用于进一步提高速度的系统，即提高SEM型检查装置中的生产量。 用于检查基板的表面的检查装置产生从电子束源25·1发射的电子的交叉，然后在样品W的方向上以期望的倍率形成图像以产生交叉。 当交叉通过时，作为噪声的电子从具有孔的交叉点移除，进行调整，使得交叉成为平行电子束以以期望的分段形式照射基板。 产生电子束，使照度不均匀为10％以下。 从样品W发射的电子被检测器25·11检测。

公开(公告)号：US20150122993A1

公开(公告)日：2015-05-07

申请号：US14596447

申请日：2015-01-14

Applicant: EBARA CORPORATION

Inventor： Nobuharu Noji ,  Tohru Satake ,  Hirosi Sobukawa ,  Toshifumi Kimba ,  Masahiro Hatakeyama ,  Shoji Yoshikawa ,  Takeshi Murakami ,  Kenji Watanabe ,  Tsutomu Karimata ,  Kenichi Suematsu ,  Yutaka Tabe ,  Ryo Tajima ,  Keiichi Tohyama

IPC: H01J37/20 ,  G01N23/22

CPC classification number: H01J37/20 ,  G01N23/2204 ,  G01N23/225 ,  H01J37/05 ,  H01J37/28 ,  H01J2237/202 ,  H01J2237/2441 ,  H01J2237/2446 ,  H01J2237/2801 ,  H01J2237/2817 ,  H01L21/6833 ,  H01L2223/54466

Abstract: A substrate is irradiated by primary electrons and secondary electrons generated from the substrate are detected by a detector. A reference die is placed on the stage to obtain a pattern matching template image including feature coordinates of the reference die. A pattern matching is performed with an arbitrary die in a row or column including the reference die using the template image to obtain feature coordinates of the arbitrary die. An angle of misalignment is calculated between the direction of the row or column including the reference die and one of the directions of movement of the substrate on the basis of the feature coordinates of the arbitrary die and those of the reference die. The stage is rotated to correct the angle of misalignment to conform the direction of the row or column including the reference die with the one of the directions of movement of the substrate.

Abstract translation: 用一次电子照射衬底，由检测器检测由衬底产生的二次电子。 将参考管芯放置在平台上以获得包括参考管芯的特征坐标的模式匹配模板图像。 使用模板图像，使用包含基准管芯的行或列中的任意管芯进行图案匹配，以获得任意管芯的特征坐标。 基于任意模具的特征坐标和参考模具的特征坐标，在包括基准模具的行或列的方向与基板的移动方向之间计算出未对准的角度。 旋转台阶以校正未对准的角度，以使包括基准模具的行或列的方向与衬底的移动方向之一相一致。

公开(公告)号：US09406480B2

公开(公告)日：2016-08-02

申请号：US14596447

申请日：2015-01-14

Applicant: EBARA CORPORATION

Inventor： Nobuharu Noji ,  Tohru Satake ,  Hirosi Sobukawa ,  Toshifumi Kimba ,  Masahiro Hatakeyama ,  Shoji Yoshikawa ,  Takeshi Murakami ,  Kenji Watanabe ,  Tsutomu Karimata ,  Kenichi Suematsu ,  Yutaka Tabe ,  Ryo Tajima ,  Keiichi Tohyama

IPC: H01J37/28 ,  G01N23/22 ,  G01N23/225 ,  H01J37/20 ,  H01J37/05 ,  H01L21/683

CPC classification number: H01J37/20 ,  G01N23/2204 ,  G01N23/225 ,  H01J37/05 ,  H01J37/28 ,  H01J2237/202 ,  H01J2237/2441 ,  H01J2237/2446 ,  H01J2237/2801 ,  H01J2237/2817 ,  H01L21/6833 ,  H01L2223/54466

Abstract: A substrate is irradiated by primary electrons and secondary electrons generated from the substrate are detected by a detector. A reference die is placed on the stage to obtain a pattern matching template image including feature coordinates of the reference die. A pattern matching is performed with an arbitrary die in a row or column including the reference die using the template image to obtain feature coordinates of the arbitrary die. An angle of misalignment is calculated between the direction of the row or column including the reference die and one of the directions of movement of the substrate on the basis of the feature coordinates of the arbitrary die and those of the reference die. The stage is rotated to correct the angle of misalignment to conform the direction of the row or column including the reference die with the one of the directions of movement of the substrate.

公开(公告)号：US08946631B2

公开(公告)日：2015-02-03

申请号：US14156140

申请日：2014-01-15

Applicant: Ebara Corporation

Inventor： Nobuharu Noji ,  Tohru Satake ,  Hirosi Sobukawa ,  Toshifumi Kimba ,  Masahiro Hatakeyama ,  Shoji Yoshikawa ,  Takeshi Murakami ,  Kenji Watanabe ,  Tsutomu Karimata ,  Kenichi Suematsu ,  Yutaka Tabe ,  Ryo Tajima ,  Keiichi Tohyama

IPC: G01N23/225 ,  H01J37/28 ,  H01L21/683

CPC classification number: H01J37/20 ,  G01N23/2204 ,  G01N23/225 ,  H01J37/05 ,  H01J37/28 ,  H01J2237/202 ,  H01J2237/2441 ,  H01J2237/2446 ,  H01J2237/2801 ,  H01J2237/2817 ,  H01L21/6833 ,  H01L2223/54466

Abstract: A substrate is irradiated by primary electrons and secondary electrons generated from the substrate are detected by a detector. A reference die is placed on the stage to obtain a pattern matching template image including feature coordinates of the reference die. A pattern matching is performed with an arbitrary die in a row or column including the reference die using the template image to obtain feature coordinates of the arbitrary die. An angle of misalignment is calculated between the direction of the row or column including the reference die and one of the directions of movement of the substrate on the basis of the feature coordinates of the arbitrary die and those of the reference die. The stage is rotated to correct the angle of misalignment to conform the direction of the row or column including the reference die with the one of the directions of movement of the substrate.

Abstract translation: 用一次电子照射衬底，由检测器检测由衬底产生的二次电子。 将参考管芯放置在平台上以获得包括参考管芯的特征坐标的模式匹配模板图像。 使用模板图像，使用包含基准管芯的行或列中的任意管芯进行图案匹配，以获得任意管芯的特征坐标。 基于任意模具的特征坐标和参考模具的特征坐标，在包括基准模具的行或列的方向与基板的移动方向之间计算出未对准的角度。 旋转台阶以校正未对准的角度，以使包括基准模具的行或列的方向与衬底的运动方向之一相一致。