Design analysis workstation for analyzing integrated circuits

    公开(公告)号:US07020853B2

    公开(公告)日:2006-03-28

    申请号:US10717460

    申请日:2003-11-21

    IPC分类号: G06F17/50

    摘要: A design analysis workstation for performing design analysis of integrated circuits provides facilities for extracting design and layout information from digital image-mosaics captured during deconstruction of an integrated circuit. Each image-mosaic is displayed in at least one mosaic-view as a background image that is overlaid with at least one annotation overlay. An engineer analyst creates annotation objects on the annotation overlay based on information inferred concurrently from one or more image-mosaics. Concurrent display of a plurality of image-mosaics facilitates the understanding of interrelations between components on different layers. The design analysis workstation displays a plurality of cursors in respective views of mosaic-images, the cursors having lock-step motion to facilitate comprehension of the alignment of features on different concurrently displayed image-mosaics. The design analysis workstation provides facilities for performing operations on created annotation objects including grouping, cell definition, signal carrier creation, contact creation, signal propagation, net-list generation, etc. The advantages include annotation of image-mosaics using information derived from a plurality of concurrently displayed mosaic-views to facilitate tracing of interconnected busses and an understanding of interrelations between components.

    Method and system for recalibration during micro-imaging to determine thermal drift
    2.
    发明授权
    Method and system for recalibration during micro-imaging to determine thermal drift 有权
    在微成像期间重新校准的方法和系统以确定热漂移

    公开(公告)号:US06768102B1

    公开(公告)日:2004-07-27

    申请号:US09594169

    申请日:2000-06-15

    申请人: David F. Skoll

    发明人: David F. Skoll

    IPC分类号: G01D1800

    摘要: A method of recalibrating to compensate for thermal drift between a micro-imaging system and a sample integrated circuit (IC) under investigation determines a planar drift using a cross-correlation between a reference calibration image and a recalibration image, and further determines a focus drift from a difference between a reference focus setting and a recalibration focus setting. The recalibration is performed on detection of a recalibration trigger event, such as expiry of a recalibration time interval. The recalibration time interval can be adaptively adjusted based on a magnitude of the thermal drift. Tile images captured since a last recalibration are recaptured if the thermal drift is too great for reliable image compensation. The system ensures seamless assembly of tile images into image photo-mosaics and increases image photo mosaic throughput.

    摘要翻译: 重新校准以补偿微成像系统和正在研究的样品集成电路(IC)之间的热漂移的方法使用参考校准图像和重新校准图像之间的互相关来确定平面漂移,并进一步确定焦点漂移 从参考焦点设置和重新校准焦点设置之间的差异。 重新校准是通过检测重新校准触发事件进行的,例如重新校准时间间隔的到期。 可以根据热漂移的大小自适应地调整重新校准时间间隔。 如果热漂移对于可靠的图像补偿来说太大,则会重新捕获上一次重新校准后捕获的平铺图像。 该系统确保瓦片图像无缝地组装成图像马赛克,并增加图像照片马赛克的吞吐量。

    Design analysis workstation for analyzing integrated circuits
    3.
    发明授权
    Design analysis workstation for analyzing integrated circuits 有权
    集成电路分析设计分析工作站

    公开(公告)号:US07509601B2

    公开(公告)日:2009-03-24

    申请号:US11298717

    申请日:2005-12-12

    IPC分类号: G06F17/50

    摘要: A design analysis workstation for performing design analysis of integrated circuits provides facilities for extracting design and layout information from digital image-mosaics captured during deconstruction of an integrated circuit. The design analysis workstation enables propagation of signal information from an annotation object having a signal property to at least one connected annotation object in order to point to errors in the design analysis.

    摘要翻译: 用于执行集成电路设计分析的设计分析工作站提供从集成电路解构期间捕获的数字图像马赛克中提取设计和布局信息的设施。 设计分析工作站能够将具有信号属性的注释对象的信号信息传播到至少一个连接的注释对象,以指示设计分析中的错误。

    Design analysis workstation for analyzing integrated circuits
    4.
    发明授权
    Design analysis workstation for analyzing integrated circuits 有权
    集成电路分析设计分析工作站

    公开(公告)号:US06684379B2

    公开(公告)日:2004-01-27

    申请号:US09927551

    申请日:2001-08-13

    IPC分类号: G06F1750

    摘要: A design analysis workstation for performing design analysis of integrated circuits provides facilities for extracting design and layout information from digital image-mosaics captured during deconstruction of an integrated circuit. Each image-mosaic is displayed in at least one mosaic-view as a background image that is overlaid with at least one annotation overlay. An engineer analyst creates annotation objects on the annotation overlay based on information inferred concurrently from one or more image-mosaics. Concurrent display of a plurality of image-mosaics facilitates the understanding of interrelations between components on different layers. The design analysis workstation displays a plurality of cursors in respective views of mosaic-images, the cursors having lock-step motion to facilitate comprehension of the alignment of features on different concurrently displayed image-mosaics. The design analysis workstation provides facilities for performing operations on created annotation objects including grouping, cell definition, signal carrier creation, contact creation, signal propagation, net-list generation, etc. The advantages include annotation of image-mosaics using information derived from a plurality of concurrently displayed mosaic-views to facilitate tracing of interconnected busses and an understanding of interrelations between components.

    摘要翻译: 用于执行集成电路设计分析的设计分析工作站提供从集成电路解构期间捕获的数字图像马赛克中提取设计和布局信息的设施。 每个图像马赛克以至少一个马赛克视图显示为覆盖有至少一个注释叠加层的背景图像。 工程师分析师根据从一个或多个图像马赛克同时推断的信息,在注释叠加层上创建注释对象。 并行显示多个图像马赛克有助于了解不同层上的组件之间的相互关系。 设计分析工作站在马赛克图像的各个视图中显示多个光标,光标具有锁步运动,以便于理解在不同的同时显示的图像马赛克上的特征对齐。 设计分析工作站提供用于对所创建的注释对象执行操作的设施,包括分组,小区定义,信号载体创建,联系创建,信号传播,网络列表生成等。优点包括使用从多个 同时显示马赛克视图,以便于跟踪互连的总线,并了解组件之间的相互关系。

    Method and apparatus for focusing a micro-imaging system onto a tilted or uneven sample to acquire images of the sample
    5.
    发明授权
    Method and apparatus for focusing a micro-imaging system onto a tilted or uneven sample to acquire images of the sample 有权
    用于将微成像系统聚焦到倾斜或不均匀样品上以获取样品图像的方法和装置

    公开(公告)号:US06763140B1

    公开(公告)日:2004-07-13

    申请号:US09657164

    申请日:2000-09-07

    申请人: David F. Skoll

    发明人: David F. Skoll

    IPC分类号: G06K940

    摘要: A mesh is created from selected focus points having locations on a surface of interest of a sample being micro-imaged. The mesh and associated focus settings of the focus points are used to define adjacent focus facets forming a focus surface substantially coincident with the surface of interest of the sample. In micro-imaging the sample, a micro-imaged portion of the surface of interest is segmented for the purpose of acquiring tile images. A tile image focus location is used to extract a tile image focus setting from the focus surface. A tile image focus determination process selects a focus facet coincident with the tile image focus location and interpolates a tile image focus setting from focus settings associated with the focus points defining the focus facet. If a coincident focus facet is not found, the tile image focus setting is set to the focus setting of a nearest focus point. Dependence on autofocus is thus eliminated, providing faster imaging and better focused images.

    摘要翻译: 从具有微成像的样品的感兴趣表面上的位置的选定焦点创建网格。 焦点的网格和相关联的焦点设置用于定义相邻的焦点小面,形成与样本的感兴趣表面基本一致的焦点表面。 在对样品进行微成像时,为了获取瓦片图像,将感兴趣的表面的微成像部分分割。 平铺图像焦点位置用于从焦点表面提取平铺图像焦点设置。 平铺图像焦点确定处理选择与平铺图像焦点位置重合的焦点小面,并且从与定义焦点小面的对焦点相关联的焦点设置内插瓷砖图像焦点设置。 如果未找到符合焦点的面,则将图像焦点设置设置为最近焦点的焦点设置。 因此,消除了对自动对焦的依赖,提供更快的成像和更好的聚焦图像。

    Predictive image caching algorithm
    6.
    发明授权
    Predictive image caching algorithm 有权
    预测图像缓存算法

    公开(公告)号:US06671424B1

    公开(公告)日:2003-12-30

    申请号:US09625546

    申请日:2000-07-25

    IPC分类号: G06K954

    CPC分类号: G06T1/60 G06T2200/32

    摘要: Methods of caching tile image constituents of image-mosaics enable a substantially smooth real-time display of portions of the image-mosaic in a view during panning, resizing, or zooming of the view. The method includes using a predictive algorithm to identify tile images to be retrieved from a remote store through a local area network, and for sequencing requests for the retrieval of tile images from the remote store. A scheduler calculates time spent in retrieving and servicing each tile image retrieval request and proportionately pauses retrieval of tile images after each request is serviced in order to prevent over utilizing LAN resources. The advantages are that tile images to be displayed are cached in accordance with a priority to facilitate image display while network data transfers are distributed in time.

    摘要翻译: 缓存图像拼图的图像成分的方法使得在平移,调整大小或缩放视图期间,在视图中的图像马赛克的部分的实质上平滑的实时显示。 该方法包括使用预测算法来通过局域网识别要从远程存储器检索的瓦片图像,以及用于排序从远程存储器检索瓦片图像的请求。 调度器计算在检索和维护每个平铺图像检索请求时所花费的时间,并在每个请求被服务之后成比例地暂停瓦片图像的检索,以便防止过度利用LAN资源。 优点在于,按照优先级缓存要显示的图像,以便在网络数据传输及时分发的同时促进图像显示。

    Lock-step cursors for feature alignment
    7.
    发明授权
    Lock-step cursors for feature alignment 有权
    用于特征对齐的锁定梯形光标

    公开(公告)号:US06549222B1

    公开(公告)日:2003-04-15

    申请号:US09604252

    申请日:2000-06-27

    申请人: David F. Skoll

    发明人: David F. Skoll

    IPC分类号: G09G500

    CPC分类号: G06F3/0481 G06F3/04812

    摘要: An apparatus for extracting design and layout information from image-mosaics of a progressive deconstruction of a semiconductor integrated circuit (IC) includes a visual display, a system pointer and a plurality of lockstep cursors. The visual display displays views of an area of interest of the respective image-mosaics. Each view displays one of the lock-step cursors when appropriate, as determined by a position of the system pointer. When the system pointer is within a view, a corresponding lock-step cursor is displayed as a master-cursor, while other views display a lock-step cursor that has a different size and shape than the master-cursor. All lock-step cursors move in unison under the control of the master-cursor. A method for extracting design and layout information from image-mosaics uses the lock-step cursors to quickly match features across image-mosaics, and to avoid transposition errors while tracing features from one image-mosaic to another.

    摘要翻译: 一种用于从半导体集成电路(IC)的逐行解构的图像拼接提取设计和布局信息的设备包括可视显示器,系统指针和多个锁定光标。 视觉显示显示各个图像马赛克的感兴趣区域的视图。 每个视图根据系统指针的位置确定,在适当的时候显示其中一个锁步光标。 当系统指针在视图内时,相应的锁步光标显示为主光标,而其他视图显示与主光标不同的大小和形状的锁步光标。 所有锁步光标在主光标的控制下一致移动。 从图像拼图中提取设计和布局信息的方法使用锁步游标快速匹配图像拼图之间的特征,并且在从一个图像拼接到另一个图像镶嵌跟踪特征时避免转置错误。