公开(公告)号：US07292341B2

公开(公告)日：2007-11-06

申请号：US10525568

申请日：2003-05-08

Applicant: Boaz Brill ,  Moshe Finarov ,  David Scheiner

Inventor： Boaz Brill ,  Moshe Finarov ,  David Scheiner

IPC: G01N21/55 ,  G01N21/00

CPC classification number: G01N21/55

Abstract: An optical system for use in measurements in a sample comprising a light source (102) operable to produce an incident light beam propagating in a certain direction towards the sample (S) through an illumination channel (IC), a detector unit (104) for collecting light coming from the sample through a detection channel (DC), and generating data indicative of the collected light, a light directing assembly (106) operable to direct the incident beam onto a certain location on the sample's plane with a plurality of incident angles, and to direct light returned from the illuminated location to the detector unit (104), the light directing assembly (106) comprising a plurality of beam deflector elements (108 A-D), at least one of the deflector elements being movable and position of said at least one movable deflector element defining one of the selected incident angles.

Abstract translation: 一种用于样品测量的光学系统，包括可操作以产生通过照明通道（IC）向特定方向向样品（S）传播的入射光束的光源（102），用于 收集来自样品的光通过检测通道（DC）并产生指示所收集的光的数据;导光组件（106），其可操作以将入射光束以多个入射角度引导到样品平面上的特定位置 ，并且将从所述照明位置返回的光引导到所述检测器单元（104），所述光引导组件（106）包括多个光束偏转元件（108AD），所述偏转元件中的至少一个可移动并且所述 限定所选入射角中的一个的至少一个可移动偏转元件。

公开(公告)号：US06974962B2

公开(公告)日：2005-12-13

申请号：US10257544

申请日：2001-09-20

Applicant: Boaz Brill ,  Moshe Finarov ,  David Scheiner

Inventor： Boaz Brill ,  Moshe Finarov ,  David Scheiner

IPC: H01L21/66 ,  G01N21/86

CPC classification number: G03F7/70633 ,  G01B11/14 ,  G01B11/27 ,  G01N21/4788 ,  G01N21/9501 ,  G01N21/956 ,  H01L22/12

Abstract: The method for controlling layers alignment in a multi-layer sample (10), such a semiconductors wafer based on detecting a diffraction efficiency of radiation diffracted from the patterned structures (12, 14) located one above the other in two different layers of the sample.

Abstract translation: 用于控制多层样品（10）中的层对准的方法，这种半导体晶片基于检测从图案化结构（12,14）衍射的辐射的衍射效率，所述图案化结构（12,14）在样品的两个不同层中彼此上下 。

公开(公告)号：US06940609B2

公开(公告)日：2005-09-06

申请号：US10214462

申请日：2002-08-08

Applicant: David Scheiner

Inventor： David Scheiner

IPC: G01B11/25 ,  G01B11/30

CPC classification number: G01B11/254

Abstract: An imaging method and system are presented for detecting the topography of a sample surface. Illuminating light is directed to the sample by sequentially passing the illuminating light through a grating and an objective lens arrangement The grating has a pattern formed by spaced-apart transparent regions spaced by non-transparent regions, and is specifically oriented with respect to the optical axis of the objective lens arrangement. Light, specularly reflected from the sample, is collected by the same objective lens arrangement and is directed to an imaging detector through the same grating, thereby enabling creation of an image of the illuminated sample indicative of the topography of the sample surface.

Abstract translation: 提出了一种用于检测样品表面的形貌的成像方法和系统。 照明光通过依次使照明光通过光栅和物镜布置而被引导到样品。光栅具有由不透明区域隔开的间隔开的透明区域形成的图案，并且相对于光轴具体定向 的物镜布置。 从样品镜面反射的光通过相同的物镜布置被收集，并通过相同的光栅被引导到成像检测器，从而能够创建指示样品表面的形貌的照明样品的图像。

公开(公告)号：US06801315B2

公开(公告)日：2004-10-05

申请号：US10303052

申请日：2002-11-25

Applicant: Moshe Finarov ,  David Scheiner

Inventor： Moshe Finarov ,  David Scheiner

IPC: G01B1127

CPC classification number: G03F7/70633

Abstract: An optical measurement method and system are presented for imaging two target structures in two parallel layers, respectively, of a sample, to enable determination of a registration between the two target structures along two mutually perpendicular axes of the layer. The sample is illuminated with incident radiation to produce a radiation response of the sample. The radiation response is collected by an objective lens arrangement, and the collected radiation response is split into two spatially separated radiation components. The split radiation components are directed towards at least one imaging plane along different optical channels characterized by optical paths of different lengths, respectively. The two split radiation components are detected in said at least one imaging plane, and two image parts are thereby acquired, each image part containing images of the two target structures. This enables determination of the relative distance between the two target structures.

Abstract translation: 提出了一种光学测量方法和系统，用于分别对样本的两个平行层中的两个目标结构进行成像，以便能够沿着该层的两个相互垂直的轴确定两个目标结构之间的配准。 用入射辐射照射样品以产生样品的辐射响应。 辐射响应由物镜布置收集，并且收集的辐射响应被分成两个空间上分离的辐射分量。 分裂的辐射分量被引导到沿着不同长度的光路的不同光通道的至少一个成像平面。 在所述至少一个成像平面中检测到两个分离的辐射分量，从而获得两个图像部分，每个图像部分包含两个目标结构的图像。 这使得能够确定两个目标结构之间的相对距离。

公开(公告)号：US06292265B1

公开(公告)日：2001-09-18

申请号：US09326665

申请日：1999-06-07

Applicant: Moshe Finarov ,  David Scheiner ,  Avi Ravid

Inventor： Moshe Finarov ,  David Scheiner ,  Avi Ravid

IPC: G01B1106

CPC classification number: H01L22/34 ,  B24B37/013 ,  B24B49/02 ,  B24B49/12 ,  H01L21/67253 ,  H01L22/12 ,  H01L22/26

Abstract: A method is presented for optical control of the quality of a process of chemical mechanical planarization (CMP) performed by a polishing tool applied to an article having a patterned area. The article contains a plurality of stacks each formed by a plurality of different layers, thereby defining a pattern in the form of spaced-apart metal regions. The method is capable of locating at least one of residues, erosion and dishing conditions on the article. At least one predetermined site on the article is selected for control. This at least one predetermined site is illuminated, and spectral characteristics of light components reflected from this location are detected. Data representative of the detected light components is analyzed for determining at least one parameter of the article within the at least one illuminated site.

Abstract translation: 提出了一种用于光学控制由应用于具有图案化区域的制品的抛光工具执行的化学机械平面化（CMP）工艺的质量的方法。 该物品包含多个由多个不同层形成的堆叠，从而限定了间隔金属区域形式的图案。 该方法能够定位物品上的残留物，侵蚀和凹陷条件中的至少一种。 选择物品上至少一个预定的位置进行控制。 该至少一个预定位置被照亮，并且检测从该位置反射的光分量的光谱特性。 分析表示检测到的光成分的数据，以确定至少一个照明部位内的物品的至少一个参数。

公开(公告)号：US06281974B1

公开(公告)日：2001-08-28

申请号：US09590635

申请日：2000-06-08

Applicant: David Scheiner ,  Moshe Finarov

Inventor： David Scheiner ,  Moshe Finarov

IPC: G01B1106

CPC classification number: G01B11/0625 ,  G01B11/02 ,  G01J3/42 ,  H01L22/12

Abstract: A method for measuring at least one desired parameter of a patterned structure having a plurality of features defined by a certain process of its manufacturing. The structure represents a grid having at least one cycle formed of at least two locally adjacent elements having different optical properties in respect of an incident radiation. An optical model, based on at lease some of the features of the structure is provided. The model is capable of determining theoretical data representative of photometric intensities of light components of different wavelengths specularly reflected from the structure and of calculating said at least one desired parameter of the structure. A measurement area, which is substantially larger than a surface area of the structure defined by the grid cycle, is illuminated by an incident radiation of a preset substantially wide wavelength range. Light component substantially specularly reflected from the measurement area is detected and measured data representative of photometric intensities of each wavelength within the wavelength range is obtained. The measured and theoretical data satisfies a predetermined condition. Upon detecting that the predetermined condition is satisfied, said at least one parameter of the structure is calculated.

Abstract translation: 一种用于测量具有由其制造的特定过程限定的多个特征的图案化结构的至少一个期望参数的方法。 该结构表示具有至少一个周期的网格，该至少一个周期由相对于入射辐射具有不同光学特性的至少两个局部相邻元件形成。 提供了基于结构的一些特征的光学模型。 该模型能够确定表示从结构镜面反射的不同波长的光分量的光度强度并且计算所述结构的至少一个期望参数的理论数据。 基本上大于由栅格周期限定的结构的表面积的测量区域被预设的基本上宽的波长范围的入射辐射照射。 检测从测量区域基本上镜面反射的光分量，并且获得表示波长范围内的每个波长的光度强度的测量数据。 测量和理论数据满足预定条件。 在检测到满足预定条件时，计算结构的所述至少一个参数。