公开(公告)号：US20060192360A1

公开(公告)日：2006-08-31

申请号：US11410479

申请日：2006-04-25

申请人： David Chan ,  Martin Peaker

发明人： David Chan ,  Martin Peaker

IPC分类号： B60G9/00

CPC分类号： B60G9/003 ,  B60G7/001 ,  B60G2200/31 ,  B60G2204/4306 ,  B60G2206/012 ,  B60G2206/722 ,  B60G2206/8201

摘要： A vehicle suspension axle wrap is a composite tubular structure of cast or forged shells of part-tubular shape. The shells are assembled into a tubular form and welded together at juxtaposed edges. The shells can be cast or forged accurately to shape and profile to provide an improved quality axle wrap. Wall thickness variations can be designed into the shells. The juxtaposed edges are shaped to space the welding at the edges from the interior of the assembled axle wrap. The edges are beveled adjacent the external circumferential surfaces of the shells to provide a V-shaped groove at which the welding is made. There is a stepped engagement at the edges between the V-shaped groove and the internal surface of the axle wrap to prevent the welding from extending to the internal surface. Each shell is formed with an aperture at which a welded joint can be made between the axle wrap and an axle.

公开(公告)号：US07086655B2

公开(公告)日：2006-08-08

申请号：US10415610

申请日：2001-08-31

申请人： David Chan ,  Martin Peaker

发明人： David Chan ,  Martin Peaker

IPC分类号： B60G9/02

CPC分类号： B60G9/003 ,  B60G7/001 ,  B60G2200/31 ,  B60G2204/4306 ,  B60G2206/012 ,  B60G2206/722 ,  B60G2206/8201

摘要： A vehicle suspension axle wrap is a composite tubular structure of cast or forged shells of part-tubular shape. The shells are assembled into a tubular form and welded together at juxtaposed edges. The shells can be cast or forged accurately to shape and profile to provide an improved quality axle wrap. Wall thickness variations can be designed into the shells. The juxtaposed edges are shaped to space the welding at the edges from the interior of the assembled axle wrap. The edges are beveled adjacent the external circumferential surfaces of the shells to provide a V-shaped groove at which the welding is made. There is a stepped engagement at the edges between the V-shaped groove and the internal surface of the axle wrap to prevent the welding from extending to the internal surface. Each shell is formed with an aperture at which a welded joint can be made between the axle wrap and an axle.

摘要翻译： 车辆悬挂轴套是部分管状的铸造或锻造壳体的复合管状结构。 壳体组装成管状并且并列在并列的边缘上。 可以精确地铸造或锻造壳体的形状和轮廓，以提供改进的优质轴套。 壁厚变化可以设计成壳。 并置的边缘成形为在与组装的轴封的内部的边缘处的焊接空间。 边缘在壳体的外周表面附近倾斜以提供V形槽，在该V形槽处进行焊接。 在V形槽和轴套的内表面之间的边缘处有阶梯式接合，以防止焊接延伸到内表面。 每个外壳形成有一个孔，在该孔处可以在轴套和轴之间形成焊接接头。

公开(公告)号：US20060148261A1

公开(公告)日：2006-07-06

申请号：US11370493

申请日：2006-03-06

申请人： Manoocher Birang ,  Konstantin Smekalin ,  David Chan

发明人： Manoocher Birang ,  Konstantin Smekalin ,  David Chan

IPC分类号： H01L21/461

CPC分类号： B24B37/013 ,  B24B37/042 ,  B24B49/003 ,  B24B49/12

摘要： A CMP station can be closed loop controlled by using data obtained by an inline metrology station from a first polished wafer to affect the processing of subsequent polished wafers. The first wafer is polished and measured by the inline metrology station. The metrology station measures at various points the array dielectric thickness, field dielectric thickness, barrier residue thickness and metal residue thickness. The data is then inputted into an algorithm and polishing parameter outputs are calculated. The outputs are sent to the CMP station and used to supplement or replace the previous polishing parameters. Subsequent wafers are polished on the CMP station using the revised polishing parameters.

公开(公告)号：US20060113742A1

公开(公告)日：2006-06-01

申请号：US11333657

申请日：2006-01-17

申请人： David Chan ,  Martin Peaker

发明人： David Chan ,  Martin Peaker

IPC分类号： B60G9/02

CPC分类号： B60G21/051 ,  B60G7/001 ,  B60G9/003 ,  B60G2200/21 ,  B60G2200/31 ,  B60G2202/136 ,  B60G2202/152 ,  B60G2204/126 ,  B60G2204/148 ,  B60G2204/4306 ,  B60G2206/11 ,  B60G2206/20 ,  B60G2206/722 ,  B60G2206/8201

摘要： A hollow vehicle suspension beam (1) has opposed side walls formed with recesses (11) in which an axle wrap (2) is located and secured by welded jointing (12, 13) internally and externally of the opposed side walls to provide a strong joint between the beam and axle wrap. The beam may comprise at least one component (5, 6) of a generally U-shaped section the opposed limbs of which provide at least part of the opposed side walls of the beam, and the mouth of the section provides an access opening into the interior of the beam for the internal welded jointing (12) to be made at the axle wrap. One embodiment has the beam comprised of two of the U-shaped components (5, 6) disposed with their mouths opening in opposite directions to provide access to the interior of the beam for the internal welded jointing to be made at the axle wrap (2) before the mouths are closed by closure components (15, 16). Another embodiment has the opposed side walls formed in combination by the opposed limbs of a U-shaped component and the space between the plate components being closed off by closure components after the internal welded joint have been made.

摘要翻译： 空心车辆悬挂梁（1）具有形成有凹部（11）的相对侧壁，其中轴封（2）定位并通过在相对侧壁的内部和外部的焊接（12,13）固定，以提供强的 梁和轴之间的接头包裹。 梁可以包括至少一个大致U形截面的部件（5,6），其相对的臂部提供梁的相对侧壁的至少一部分，并且该部分的口部提供进入 用于内部焊接接头（12）的梁的内部在轴套上制成。 一个实施例具有由两个U形部件（5,6）组成的梁，所述两个U形部件（5,6）以其相反方向开口的方式设置，以提供通向梁的内部的通路，用于在轴套（2）处制造内部焊接接头 ）在口被封闭部件（15,16）封闭之前。 另一个实施例具有由相对的U形部件组合形成的相对侧壁，并且在制造内部焊接接头之后，板部件之间的空间被封闭部件封闭。

公开(公告)号：US20050206493A1

公开(公告)日：2005-09-22

申请号：US10804510

申请日：2004-03-19

申请人： David Chan ,  Roger Bradley ,  John Power

发明人： David Chan ,  Roger Bradley ,  John Power

IPC分类号： H01C7/10 ,  H01C7/12 ,  H01H85/44 ,  H01T4/08 ,  H02H9/04

CPC分类号： H01C7/126

摘要： An MOV element is physically and electrically connected to a heat sensitive material which changes from a low impedance path to a high impedance path, such as a spark gap, when the temperature of the MOV element rises to a temperature below that at which the MOV will enter into its thermal runaway state. More specifically, the heat sensitive material is located on a surface of the MOV and is electrically connected in series with the MOV. In operation, as the MOV gets hot, it heats the heat sensitive material. As the heat sensitive material gets hot, it starts to separate from the surface of the MOV to form a spark gap which is electrically connected in series with the MOV element to help dissipate excessive voltage. The heat sensitive material on the surface of the MOV element can be a coating of epoxy which cracks and/or breaks away, at least partially from the surface of the MOV element during the occurrence of a high voltage transient surge, or it can be a solder that sputters to form an arc path during the occurrence of a high voltage transient surge. In operation, when a GFCI is subjected to a high voltage transient surge above a certain magnitude, the heat sensitive material forms a spark gap which is in series with the MOV and prevents the GFCI from going into its destructive thermal runaway condition. Thus, prior to the MOV entering its thermal runaway state, it goes from being only an MOV to an MOV in series with a spark gap which can be used to protect an up stream GFCI during the occurrence of a high voltage transient surge.

摘要翻译： 当MOV元件的温度上升到低于MOV的温度时，MOV元件物理和电连接到热敏材料，该热敏材料从低阻抗路径变化到高阻抗路径，例如火花隙， 进入其热失控状态。 更具体地说，热敏材料位于MOV的表面上并与MOV串联电连接。 在操作中，当MOV变热时，它会加热感热材料。 当感热材料变热时，它开始与MOV的表面分离，以形成与MOV元件串联电连接的火花隙，以帮助消散过大的电压。 MOV元件表面上的热敏材料可以是在高电压瞬变浪涌发生期间至少部分地从MOV元件的表面开裂和/或断开的环氧树脂涂层，或者它可以是 在发生高电压瞬变浪涌期间，焊料溅射形成电弧路径。 在操作中，当GFCI受到高于一定量级的高电压瞬态浪涌时，热敏材料形成与MOV串联的火花隙，并防止GFCI进入其破坏性热失控状态。 因此，在MOV进入其热失控状态之前，它只能从MOV到MOV与串联的火花隙串联起来，该火花隙可以在发生高压瞬态浪涌时用于保护上行GFCI。

公开(公告)号：US06830943B1

公开(公告)日：2004-12-14

申请号：US10702165

申请日：2003-11-04

申请人： Wai Lo ,  David Chan

发明人： Wai Lo ,  David Chan

IPC分类号： H01L2166

CPC分类号： H01L22/34 ,  G01B11/0616

摘要： Embodiments of the invention include a calibration standard for semiconductor metrology tools. The standard comprises a substrate having a surface with a calibration layer formed thereon. A protective layer is formed over the underlying calibration layer. The calibration layer and protective layer are each formed to precise tolerances. The invention also includes methods for forming a calibration standard for semiconductor metrology tools.

摘要翻译： 本发明的实施例包括用于半导体计量工具的校准标准。 该标准包括具有在其上形成有校准层的表面的基板。 在底层校准层上形成保护层。 校准层和保护层各自形成为精确的公差。 本发明还包括形成用于半导体计量工具的校准标准的方法。

公开(公告)号：US6033998A

公开(公告)日：2000-03-07

申请号：US38684

申请日：1998-03-09

申请人： Sheldon Aronowitz ,  David Chan ,  James Kimball ,  David Lee ,  John Haywood ,  Valeriy Sukharev

发明人： Sheldon Aronowitz ,  David Chan ,  James Kimball ,  David Lee ,  John Haywood ,  Valeriy Sukharev

IPC分类号： H01L21/8234 ,  H01L21/76

CPC分类号： H01L21/823462

摘要： Provided is a method of fabricating gate dielectric layers having variable thicknesses and compositions over different regions of a semiconductor wafer. In a preferred embodiment of the present invention, a gate oxide layer is first grown over the various regions. Regions that are to have a relatively thicker, unhardened gate dielectric are masked and the wafer is exposed to a remote low energy nitrogen plasma. After the nitridization process is completed, the mask is removed and the wafer is exposed to further oxidation. The regions where oxynitrides have been formed act as a barrier to the oxidation process. Consequently, different oxide thicknesses can be grown on the same wafer, thinner and hardened where nitridization has been performed, and thicker and not hardened in those regions that were masked during the nitridization. Variable thickness gate dielectrics in accordance with the present invention may be particularly advantageous in semiconductor integrated circuits involving both digital and analog devices.

摘要翻译： 提供一种制造在半导体晶片的不同区域上具有可变厚度和组成的栅极电介质层的方法。 在本发明的优选实施例中，首先在各个区域上生长栅氧化层。 具有相对较厚，未硬化的栅极电介质的区域被掩蔽，并且晶片暴露于远程低能量氮等离子体。 在氮化处理完成之后，去除掩模并使晶片进一步氧化。 已经形成氮氧化物的区域用作氧化过程的屏障。 因此，可以在相同的晶片上生长不同的氧化物厚度，在已经进行氮化的情况下更薄并且硬化，并且在氮化期间被掩蔽的那些区域中较厚而不硬化。 根据本发明的可变厚栅极电介质在涉及数字和模拟装置的半导体集成电路中可能是特别有利的。

公开(公告)号：US6028439A

公开(公告)日：2000-02-22

申请号：US962472

申请日：1997-10-31

申请人： Brian J. Arkin ,  Garry C. Gillette ,  David Chan

发明人： Brian J. Arkin ,  Garry C. Gillette ,  David Chan

IPC分类号： G01R31/3183 ,  G01R31/26 ,  G01R31/28 ,  G01R31/319 ,  H01L21/66

CPC分类号： G01R31/31908 ,  G01R31/31907 ,  G01R31/31922

摘要： A modular integrated circuit tester includes a set of tester modules for carrying out a sequence of tests on an integrated circuit device under test (DUT). Each module includes a memory for storing instruction sets indicating how the module is to be configured for each test of the sequence. Before the start of each test, a microcontroller in each module executes an instruction set to appropriately configure the module for the test. The microcontroller in each module thereafter sends a ready signal to a start logic circuit in each other module indicating that it is ready to perform the test. When the microcontrollers of all modules taking part in the test have signaled they are ready, the start logic circuit in each module signals its microcontroller to begin the test. The modules then carry out the test with their activities synchronized to a master clock signal. The process of configuring the modules, generating the ready signals and commencing a test is repeated for each test of the sequence.

摘要翻译： 模块化集成电路测试仪包括一组用于在被测集成电路器件（DUT）上执行一系列测试的测试器模块。 每个模块包括存储器，用于存储指示如何为每个序列测试配置模块的指令集。 在每个测试开始之前，每个模块中的微控制器执行指令集以适当地配置用于测试的模块。 每个模块中的微控制器随后向每个其他模块中的起始逻辑电路发送就绪信号，指示其准备执行测试。 当所有参与测试的模块的微控制器已经发出信号通知它们已经准备就绪时，每个模块中的启动逻辑电路都会通知其微控制器开始测试。 然后，这些模块进行测试，其活动与主时钟信号同步。 对于序列的每个测试，重复配置模块，产生就绪信号和开始测试的过程。

公开(公告)号：US5786971A

公开(公告)日：1998-07-28

申请号：US899129

申请日：1997-07-23

申请人： David Chan ,  Paul Gernhardt

发明人： David Chan ,  Paul Gernhardt

IPC分类号： H02H3/33 ,  H02H3/347 ,  H02H3/00

CPC分类号： H02H3/347 ,  H02H3/334

摘要： A ground fault protection circuit for plural loads connected across a power source with plural branches which can be used where the loads are unbalanced. Each branch includes a ground fault circuit interrupter device that has a common line for the electronics of the GFCI separate from the neutral line from the power source to the load where the common lines for the electronics for the ground circuit interrupter devices in each branch are connected to a common point. The ground fault protection circuit employs plural ground fault circuit interrupter devices and eliminates nuisance tripping. The common line for the electronics for a GFCI is routed through the core of the current sensing transformer of the GFCI. The separate neutral line for the electronics, connecting the common lines for the electronics for plural GFCI devices and routing the common lines for the GFCI electronics through the core of the transformer of each GFCI, eliminate improper GFCI operation due to unbalanced loading. The ground fault protection circuit may be used for a three phase power source.

公开(公告)号：US5685631A

公开(公告)日：1997-11-11

申请号：US554730

申请日：1995-11-08

申请人： Frank Dobert ,  David Chan

发明人： Frank Dobert ,  David Chan

IPC分类号： B60Q1/26 ,  B60Q7/00 ,  F21L4/02 ,  F21S9/02 ,  F21V5/04 ,  F21V21/06 ,  F21V21/096 ,  F21V31/00 ,  F21L1/00

CPC分类号： B60Q1/2615 ,  B60Q7/00 ,  F21L4/027 ,  F21S9/022 ,  F21V21/06 ,  F21V21/096 ,  F21V31/00 ,  F21V5/04 ,  F21W2101/02 ,  F21W2101/023 ,  F21W2111/00 ,  F21Y2101/00 ,  Y10S362/80

摘要： A replacement safety light system comprising a self-contained, self-powered, individual safety light designed to be secured to a vehicle as a replacement safety light or to be used as a free-standing warning light or flare. The safety light utilizes a bifocal lens and blue light emitting diodes to provide enhanced visual recognition.

摘要翻译： 一种替代的安全灯系统，包括独立的，自供电的个人安全灯，设计成作为替换安全灯固定在车辆上，或用作独立的警告灯或闪光灯。 安全灯使用双焦透镜和蓝色发光二极管来提供增强的视觉识别。