公开(公告)号：US4668338A

公开(公告)日：1987-05-26

申请号：US814638

申请日：1985-12-30

Applicant: Dan Maydan ,  Sasson Somekh ,  Mei Cheng ,  David Cheng

Inventor： Dan Maydan ,  Sasson Somekh ,  Mei Cheng ,  David Cheng

IPC: H01L21/302 ,  H01J37/32 ,  H01L21/3065 ,  H01L21/311 ,  H01L21/3213 ,  H01L21/306 ,  B44C1/22 ,  C03C15/00 ,  C03C25/06

CPC classification number: H01J37/32623 ,  H01J37/3266 ,  H01L21/31116 ,  H01L21/32137 ,  H01J2237/3341

Abstract: A magnetically-enhanced, variable magnetic field, RIE mode plasma etch process for etching materials such as dielectrics and polycrystalline, is disclosed. The variable magnetic field permits optimization of selected characteristics such as etch rate, etch selectivity, ion bombardment and radiation damage, etch uniformity, and etch anisotropy.

Abstract translation: 公开了用于蚀刻诸如电介质和多晶的材料的磁增强型可变磁场RIE模式等离子体蚀刻工艺。 可变磁场允许优化所选择的特性，例如蚀刻速率，蚀刻选择性，离子轰击和辐射损伤，蚀刻均匀性和蚀刻各向异性。

公开(公告)号：US4130898A

公开(公告)日：1978-12-19

申请号：US828801

申请日：1977-08-29

Applicant: John C. Urbach ,  David Cheng

Inventor： John C. Urbach ,  David Cheng

IPC: G11B7/09 ,  G11B7/125 ,  G11C13/04 ,  G11C13/08 ,  G11C7/00

CPC classification number: G11B7/128 ,  G11C13/048

Abstract: An optical data recording system in which during recording the writing beam is made to move at the same velocity as the recording medium whereby motion blur is minimized or reduced. Movement of the writing beam at the same velocity as the recording medium is achieved by supplying a constantly varying frequency RF signal to an acousto-optic device which deflects (diffracts) the writing beam in accordance with the instantaneous frequency of the RF signal. The acousto-optic device can also be utilized to amplitude modulate the writing beam.

Abstract translation: 一种光学数据记录系统，其中在记录写入光束期间以与记录介质相同的速度移动，由此运动模糊被最小化或减小。 通过向声光装置提供恒定变化的频率RF信号，根据RF信号的瞬时频率偏转（衍射）写入光束来实现与记录介质以相同速度的写入光束的移动。 声光装置也可用于幅度调制书写光束。

公开(公告)号：US20140068981A1

公开(公告)日：2014-03-13

申请号：US13614149

申请日：2012-09-13

Applicant: David Cheng ,  Jocelynn Cheng

Inventor： David Cheng ,  Jocelynn Cheng

IPC: G09F3/10

CPC classification number: G09F3/10

Abstract: The device described herein includes self-adhering graphics presented in a multiple perspectives so that when applied to structural containers, such as cardboard boxes, the containers are transformed, child playthings.

Abstract translation: 本文描述的装置包括以多个视角呈现的自粘附图形，使得当应用于诸如纸板箱的结构容器时，容器被转换，儿童玩具。

公开(公告)号：US20080010304A1

公开(公告)日：2008-01-10

申请号：US11731008

申请日：2007-03-29

Applicant: Santosh Vempala ,  Grant Wang ,  Ravi Kannan ,  David Cheng

Inventor： Santosh Vempala ,  Grant Wang ,  Ravi Kannan ,  David Cheng

IPC: G06F17/30

CPC classification number: G06F17/3071 ,  G06F17/30625 ,  G06K9/6224

Abstract: Described are techniques for clustering a data set of objects. Divide phase processing is performed to partition the data set into two or more partitions forming a hierarchy of the objects. Merge phase processing may be performing using the hierarchy to determine one or more disjoint clusters of objects of the data set. Optional preprocessing may be performed to determine weights for one or more features of an object.

Abstract translation: 描述了用于聚类对象的数据集的技术。 执行分割相位处理以将数据集划分成形成对象的层次结构的两个或更多个分区。 可以使用层级来执行合并阶段处理以确定数据集的对象的一个​​或多个不相交的集群。 可以执行可选的预处理以确定对象的一个​​或多个特征的权重。

公开(公告)号：US20070100744A1

公开(公告)日：2007-05-03

申请号：US11264816

申请日：2005-11-01

Applicant: Bruce Wu ,  Wai Hui ,  Arvydas Balionis ,  Erika Wessel ,  David Cheng ,  Harvey Kaminsky ,  Kenneth Kollar ,  Patrick Kidney

Inventor： Bruce Wu ,  Wai Hui ,  Arvydas Balionis ,  Erika Wessel ,  David Cheng ,  Harvey Kaminsky ,  Kenneth Kollar ,  Patrick Kidney

IPC: G06Q40/00

CPC classification number: G06Q40/02 ,  G06Q40/00 ,  G06Q40/025

Abstract: A money laundering prevention program administered by a financial institution. A plurality of risk factors associated with a potential for conducting illicit activities in connection with an account held at the financial institution are identified. The risk factors include jurisdiction-based risk factors, entity type-based risk factors, and/or business type-based risk factors. The risk factors are ranked and, based on the rank, each of the risk factors is assigned to a tier. Each of the tiers represents a level of risk that illicit activities will be conducted in connection with the account.

Abstract translation: 由金融机构管理的洗钱预防计划。 确定了与在金融机构持有的账户进行非法活动的可能性相关的多种风险因素。 风险因素包括基于管理的风险因素，基于实体类型的风险因素和/或基于业务类型的风险因素。 风险因素排名，并根据排名将每个风险因素分配给一个层次。 每一层都是与帐户有关的非法活动的风险级别。

公开(公告)号：US07140359B2

公开(公告)日：2006-11-28

申请号：US11042905

申请日：2005-01-26

Applicant: David Cheng

Inventor： David Cheng

IPC: H01T13/32

CPC classification number: H01T13/04

Abstract: A spark plug capable of removing the remaining electric charges is proposed. The spark plug can be installed in a vehicle and has an insulating body, a center electrode, a conductive housing and a conductive wire. The center electrode is passed through the insulating body. The conductive housing is disposed outside the insulating body. One end of the conductive wire is connected to the conductive housing and the other end of the conductive wire is fixed on a negative electrode of a battery of the vehicle. Since the electric charges remaining in the spark plug can be removed by the conductive wire after the high-voltage current sent from the ignition system induces the sparks, the present invention can avoid the damage of the spark plug to keep the spark plug in good status, maintain the efficiency of the engine, and make the car safer in usage.

公开(公告)号：US20060005148A1

公开(公告)日：2006-01-05

申请号：US10879049

申请日：2004-06-30

Applicant: David Cheng ,  Sean Purcell ,  Eyal Schwartz

Inventor： David Cheng ,  Sean Purcell ,  Eyal Schwartz

IPC: G06F17/00

CPC classification number: G06F9/451

Abstract: A system and related techniques automatically monitor browser and other sessions to detect the onset of a popup or other automatically generated windows or media. When a popup object is detected, a filter or engine may examine the content of that object to generate an estimate of the desirability of the popup to the user. The content-based evaluation of the popup may examine, for instance, the source of the popup, the type or quantity of embedded image files, text including keywords, embedded links and a variety of other factors to assess the likelihood that the popup was related to the user's legitimate browser activity or otherwise likely to be desired by the user. If not, the platform may suppress the popup or other object without user intervention. In embodiments, the content analysis may be performed by a self-learning network such as a neural network, for instance based on stored feedback from a collection of users, or otherwise.

Abstract translation: 系统和相关技术自动监视浏览器和其他会话以检测弹出窗口或其他自动生成的窗口或介质的发生。 当检测到弹出对象时，过滤器或引擎可以检查该对象的内容以生成弹出窗口对用户的可取性的估计。 弹出窗口的基于内容的评估可以检查例如弹出窗口的来源，嵌入图像文件的类型或数量，包括关键字的文本，嵌入链接以及各种其他因素来评估弹出窗口相关的可能性 用户的合法浏览器活动或者用户可能希望的。 如果没有，平台可以在没有用户干预的情况下抑制弹出窗口或其他对象。 在实施例中，内容分析可以由诸如神经网络的自学习网络来执行，例如基于来自用户集合的存储的反馈或其他方式。

公开(公告)号：US6164894A

公开(公告)日：2000-12-26

申请号：US963722

申请日：1997-11-04

Applicant: David Cheng

Inventor： David Cheng

IPC: G01R31/28 ,  H01L21/68 ,  G01R1/04

CPC classification number: G01R31/2887 ,  G01R31/2831 ,  H01L21/681 ,  Y10S414/136 ,  Y10S414/137 ,  Y10S414/141

Abstract: A wafer handling and testing apparatus and method include a station for supporting a wafer carrier, such as a cassette or pod, that holds one or more wafers, where the carrier can be moved in a z-direction. A wafer handling assembly is moveable in an x-direction and removes a wafer from the wafer carrier. The handling assembly includes an end effector and a sensor for detecting an edge of the wafer. A chuck includes a platform that is movable in a z-direction and is used to lift the wafer from the handling assembly and rotate the wafer so that the sensor maps the edge of the wafer. The wafer is then centered on the platform, lowered onto the chuck, and is tested by a test head that is preferably coupled to the handling assembly.

Abstract translation: 晶片处理和测试装置和方法包括用于支撑晶片载体（例如盒或盒）的站，该台架保持一个或多个晶片，其中载体可沿z方向移动。 晶片处理组件可在x方向上移动并从晶片载体移除晶片。 处理组件包括端部执行器和用于检测晶片边缘的传感器。 卡盘包括可在z方向上移动的平台，并且用于从处理组件抬起晶片并旋转晶片，使得传感器映射晶片的边缘。 然后晶片在平台上居中，下降到卡盘上，并通过优选地联接到操作组件的测试头进行测试。

公开(公告)号：US5917191A

公开(公告)日：1999-06-29

申请号：US977832

申请日：1997-11-26

Applicant: David Cheng

Inventor： David Cheng

IPC: G01B11/16 ,  G01B11/255 ,  G01B11/30 ,  H01L21/00 ,  G01N21/86

CPC classification number: H01L21/67288 ,  G01B11/16 ,  G01B11/255 ,  G01B11/306

Abstract: A method for measuring surface topography characterized by making multiple scans of the surface with a laser scanning unit and utilizing the multiple scans to create representations of the surface's topography. The surface topography data can also be used to calculate the compressive or tensile stress caused by a thin film applied to the surface of a semiconductor wafer. The apparatus of the present invention scans a laser beam across a surface in an x direction, and detects displacements of a reflected portion of the laser beam in a z direction. A pair of photodetectors are used to translate z direction displacements of the reflected beam into analog signals which are digitized and input into a microcomputer for analysis. The multiple scans of the surface are preferably accomplished by placing the workpiece on a pedestal which can be rotated to various angular positions.

Abstract translation: 一种用于测量表面形貌的方法，其特征在于用激光扫描单元对表面进行多次扫描，并利用多次扫描来创建表面的地形图。 表面形貌数据也可用于计算由施加到半导体晶片表面的薄膜引起的压缩或拉伸应力。 本发明的装置沿x方向扫描激光束的表面，并且检测激光束在z方向上的反射部分的位移。 一对光电探测器用于将反射光束的z方向位移转换为模拟信号，并将其数字化并输入微型计算机进行分析。 表面的多次扫描优选通过将工件放置在可旋转到各种角度位置的基座上来实现。

公开(公告)号：US5914611A

公开(公告)日：1999-06-22

申请号：US909682

申请日：1997-08-12

Applicant: David Cheng

Inventor： David Cheng

IPC: G01B7/06 ,  G01R27/02 ,  G01R31/26 ,  G01N27/14

CPC classification number: G01R27/02 ,  G01B7/06 ,  G01R31/2648

Abstract: A method and apparatus for measuring sheet resistance and thickness of thin films and substrates. A four-point probe assembly engages the surface of a film on a substrate, and the thickness of the substrate is determined from the point of contact between the probes and film. A measuring apparatus then outputs a voltage waveform which applies a voltage to probes of the probe assembly. An inverter inverts the voltage and provides the inverted voltage on another probe of the probe assembly, thus inducing a current in these probes of the four point probe and through the surface of the film. Two other probes measure a voltage in the film created by the current. The voltages on the current probes provide a voltage close to zero at the other probes, thus allowing these other probes to measure voltages with greater precision. The current created by the voltage waveform and the voltage created across the inner probes are measured for each voltage level of the waveform. A sheet resistance of the film is determined by calculating the slope of a least square fit line of the measured current and voltage. The sheet resistance is proportional to the slope of the least square line. The thickness of the film is calculated by dividing the film resistivity by the calculated sheet resistance.

Abstract translation: 一种用于测量薄膜和薄膜的薄层电阻和厚度的方法和装置。 四点探头组件接合衬底上的膜的表面，并且从探针和膜之间的接触点确定衬底的厚度。 然后，测量装置输出对探针组件的探头施加电压的电压波形。 逆变器反转电压并在探针组件的另一个探针上提供反相电压，从而在四点探针的这些探针中并通过膜的表面引起电流。 另外两个探头测量由电流产生的电影中的电压。 电流探头上的电压在其他探头上提供接近零的电压，从而允许其他探头以更高的精度测量电压。 针对波形的每个电压电平测量由电压波形产生的电流和内部探针产生的电压。 通过计算测量的电流和电压的最小二乘拟合线的斜率来确定膜的薄层电阻。 薄层电阻与最小二乘线的斜率成比例。 通过将膜电阻率除以计算的薄层电阻来计算膜的厚度。