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    • 21. 发明授权
    • Calibration method for system performance validation of automatic test equipment
    • 自动测试设备系统性能验证的校准方法
    • US06804620B1
    • 2004-10-12
    • US10393876
    • 2003-03-21
    • Douglas LarsonAnthony LeCarol Qiao TongRochit Rajsuman
    • Douglas LarsonAnthony LeCarol Qiao TongRochit Rajsuman
    • G06F900
    • G01R31/3191G01R31/31922
    • An ATE calibration method and system that does not require external test equipment to calibrate individual functional pins and provides balanced timing skews among the functional pins and pincards is disclosed. A functional pin in the test system is selected as a reference or “golden” pin and another is selected as a precision measurement unit (PMU). External test equipment and the reference PMU are used to measure the AC and DC characteristics of the reference pin, and any deviation represents a measurement error in the reference PMU. All functional pins in the test system can be measured against the reference pin using the reference PMU, taking into account the measurement error, without the need for external test equipment. To ensure that skews are balanced among all pins, the location of the reference pin is selected to be as close as possible to the midpoint of the functional pin range.
    • 公开了一种不需要外部测试设备来校准各个功能引脚并在功能引脚和引脚卡之间提供平衡的时序偏移的ATE校准方法和系统。 选择测试系统中的功能引脚作为参考或“黄金”引脚,另一个选择为精密测量单元(PMU)。 外部测试设备和参考PMU用于测量参考引脚的交流和直流特性,任何偏差表示参考PMU中的测量误差。 测试系统中的所有功能引脚可以使用参考PMU测量参考引脚,同时考虑到测量误差,无需外部测试设备。 为了确保所有引脚之间的偏差平衡,参考引脚的位置选择为尽可能靠近功能引脚范围的中点。
    • 22. 发明授权
    • Locking apparatus and loadboard assembly
    • 锁定装置和装载板组件
    • US06747447B2
    • 2004-06-08
    • US10254401
    • 2002-09-25
    • Niels MarkertAnthony LeRobert SauerRochit RajsumanHiroki Yamoto
    • Niels MarkertAnthony LeRobert SauerRochit RajsumanHiroki Yamoto
    • G01R3102
    • G01R31/2886
    • The present invention is directed to a locking apparatus and loadboard assembly of a semiconductor testing device apparatus. The loadboard assembly includes a printed circuit board containing a device under test and an interface board secured to the bottom of the printed circuit board. The interface board has two members with a space between them. Spacers connect the members to form apertures for contact pins on a test head. The loadboard assembly is placed on top of a locking apparatus which is mounted on the top surface of the test head. The placement of the loadboard on the locking apparatus is done according to two pins of different cross-sections that extend through two holes in the interface board and printed circuit board of the loadboard assembly. When the loadboard assembly is placed on the locking mechanism, rollers mounted on the interface board are received in cam slots of a cam member of the locking apparatus. These rollers follow the cam slots as the cam member is moved. Based on the profile of the cam slots, the loadboard assembly can be gradually lowered to achieve contact between the printed circuit board and the contact pins on the test head and to lock the interface board.
    • 本发明涉及半导体测试装置装置的锁定装置和装载板组件。 装载板组件包括包含被测器件的印刷电路板和固定到印刷电路板底部的接口板。 接口板有两个成员之间有空格。 隔板连接构件以形成测试头上的接触针的孔。 装载板组件放置在安装在测试头的顶表面上的锁定装置的顶部上。 装载板在锁定装置上的布置根据延伸穿过接合板和装载板组件的印刷电路板中的两个孔的不同横截面的两个销进行。 当将装载板组件放置在锁定机构上时,安装在接口板上的辊被容纳在锁定装置的凸轮构件的凸轮槽中。 当凸轮构件移动时,这些滚轮跟随凸轮槽。 基于凸轮槽的轮廓,可以逐渐降低装载板组件以实现印刷电路板与测试头上的接触针之间的接触并锁定接口板。
    • 25. 发明授权
    • Providing precise timing control within a standardized test instrumentation chassis
    • 在标准化的测试仪器底盘内提供精确的时序控制
    • US07437589B2
    • 2008-10-14
    • US11197022
    • 2005-08-03
    • Anthony LeGlen Gomes
    • Anthony LeGlen Gomes
    • G06F1/12
    • G01R31/31716G01R31/31715G01R31/31726
    • Precise timing control within a standardized chassis such as PXI is obtained by providing several control signals over PXI_LOCAL. A Least Common Multiple (LCM) signal enables all clocks to have coincident clock edges occurring at every LCM edge. A start sequence allows all PXI expansion cards in the test system to start at the same time. A MATCH line enables pincard modules to check for expected DUT outputs and either continue execution of their local test programs or loop back and repeat a section of the local test program in accordance with the result of the DUT output check. An End Of Test (EOT) line enables any one pincard module to abruptly end the local test programs running in all other pincard modules if an error is detected by the local test program in the pincard module.
    • 通过在PXI_LOCAL上提供多个控制信号,可以获得标准化机箱(如PXI)内的精确时序控制。 最低共通信号(LCM)信号使所有时钟在每个LCM边沿都具有一致的时钟边沿。 启动顺序允许测试系统中的所有PXI扩展卡同时启动。 一个MATCH线使PIN卡模块能够检查预期的DUT输出,并继续执行本地测试程序或回送并根据DUT输出检查的结果重复本地测试程序的一部分。 如果pincard模块中的本地测试程序检测到错误,则测试结束(EOT)线可以使任何一个pincard模块突然结束在所有其他pincard模块中运行的本地测试程序。
    • 26. 发明授权
    • Circuit card synchronization within a standardized test instrumentation chassis
    • 标准化测试仪器底盘内的电路卡同步
    • US07437588B2
    • 2008-10-14
    • US11196996
    • 2005-08-03
    • Anthony LeGlen Gomes
    • Anthony LeGlen Gomes
    • G06F1/12
    • G01R31/31725G01R31/31726
    • Precise timing control within a standardized chassis such as PXI is obtained by providing several control signals over PXI_LOCAL. A Least Common Multiple (LCM) signal enables all clocks to have coincident clock edges occurring at every LCM edge. A start sequence allows all PXI expansion cards in the test system to start at the same time. A MATCH line enables pincard modules to check for expected DUT outputs and either continue execution of their local test programs or loop back and repeat a section of the local test program in accordance with the result of the DUT output check. An End Of Test (EOT) line enables any one pincard module to abruptly end the local test programs running in all other pincard modules if an error is detected by the local test program in the pincard module.
    • 通过在PXI_LOCAL上提供多个控制信号,可以获得标准化机箱(如PXI)内的精确时序控制。 最低共通信号(LCM)信号使所有时钟在每个LCM边沿都具有一致的时钟边沿。 启动顺序允许测试系统中的所有PXI扩展卡同时启动。 一个MATCH线使PIN卡模块能够检查预期的DUT输出,并继续执行本地测试程序或回送并根据DUT输出检查的结果重复本地测试程序的一部分。 如果pincard模块中的本地测试程序检测到错误,则测试结束(EOT)线可以使任何一个pincard模块突然结束在所有其他pincard模块中运行的本地测试程序。
    • 27. 发明授权
    • Event processing apparatus and method for high speed event based test system
    • 基于高速事件的测试系统的事件处理设备和方法
    • US07171602B2
    • 2007-01-30
    • US10318959
    • 2002-12-13
    • Glen GomesAnthony Le
    • Glen GomesAnthony Le
    • G01R31/28G06F11/00
    • G01R31/31937G01R31/318328G01R31/31919G01R31/31922
    • An apparatus and method for computing event timing for high speed event based test system. The event processing apparatus includes an event memory for storing event data of each event where the event data includes timing data for each event which is formed with an integer multiple of a clock period and a fraction of the clock period, an event summing logic for accumulating the timing data and producing the accumulated timing data in a parallel form, and an event generator for generating events specified by the event data based on the accumulated timing data received in the parallel form from the event summing logic. The events in the event data are specified as groups of events where each group of event is configured by one base event and at least one companion event.
    • 一种用于计算基于高速事件的测试系统的事件定时的装置和方法。 事件处理装置包括事件存储器,用于存储每个事件的事件数据,其中事件数据包括形成有时钟周期和时钟周期的一部分的整数倍的每个事件的定时数据,用于累加事件的事件加法逻辑 定时数据并且以并行形式产生累积的定时数据,以及事件发生器,用于基于从事件求和逻辑以并行形式接收的累积定时数据生成由事件数据指定的事件。 事件数据中的事件被指定为事件组,每组事件由一个基本事件和至少一个随播事件配置。
    • 28. 发明授权
    • Event pipeline and summing method and apparatus for event based test system
    • 事件流水线和基于事件的测试系统的求和方法和装置
    • US07010452B2
    • 2006-03-07
    • US10618387
    • 2003-07-12
    • Glen GomesAnthony Le
    • Glen GomesAnthony Le
    • G06F11/00
    • G01R31/31922G01R31/31917G01R31/31928G01R31/31932
    • An event pipeline and vernier summing apparatus for high speed event based test system processes the event data to generate drive events and strobe events with various timings at high speed to evaluate a semiconductor device under test. The event pipeline and vernier summing apparatus is configured by an event count delay logic, a vernier data decompression logic, an event vernier summation logic, an event scaling logic, and a window strobe logic. The event pipeline and summing method and apparatus of the present invention is designed to perform high speed event timing processing with use of a pipeline structure. The window strobe logic provides a function for detecting a window strobe request and generating a window strobe enable.
    • 用于基于高速事件的测试系统的事件管线和游标求和装置处理事件数据以高速度的各种定时产生驱动事件和选通事件以评估被测半导体器件。 事件流水线和游标求和装置由事件计数延迟逻辑,游标数据解压缩逻辑,事件游标求和逻辑,事件缩放逻辑和窗口选通逻辑来配置。 本发明的事件管线和求和方法和装置被设计成使用流水线结构执行高速事件定时处理。 窗口选通逻辑提供用于检测窗口选通请求并产生窗口选通使能的功能。
    • 29. 发明授权
    • Apparatus for supporting and manipulating a testhead in an automatic test equipment system
    • 用于在自动测试设备系统中支撑和操纵测试头的设备
    • US06771062B1
    • 2004-08-03
    • US10438364
    • 2003-05-14
    • Niels MarkertAnthony LeRobert Sauer
    • Niels MarkertAnthony LeRobert Sauer
    • G01R104
    • G01R31/2887
    • An apparatus for supporting and manipulating a testhead for testing semiconductor devices includes a supporting frame, plates adapted to be mounted on opposite sides of the testhead and controllable shafts that connect the supporting frame to the plates. Each plate has an opening in which a flanged bearing is fitted. The testhead is mounted by moving the respective shafts through the flanged bearings within the openings of plates. In this manner, the shafts support the testhead on two fixed pivots. The shafts also provide a fixed axis of rotation about which the testhead can be rotated. The testhead can be locked in a particular position about the fixed rotation axis by a locking pin inserted into one of a plurality of locking holes surrounding the plate opening. A lever arm connected to the locking pin is utilized to change the radial position of the testhead. The testhead is dismounted by unlocking the locking pin and moving the shafts from the flanged bearings.
    • 用于支撑和操纵用于测试半导体器件的测试头的装置包括支撑框架,适于安装在测试头的相对侧上的板和将支撑框架连接到板的可控轴。 每个板都有一个开口,其中安装有法兰的轴承。 通过将相应的轴移动通过板的开口内的凸缘轴承来安装测试头。 以这种方式,轴在两个固定的枢轴上支撑测试头。 这些轴还提供固定的旋转轴线,围绕其旋转测试头。 通过插入到围绕板开口的多个锁定孔中的一个中的锁定销,test头可以围绕固定的旋转轴线被锁定在特定位置。 连接到锁定销的杠杆臂用于改变测头的径向位置。 通过解锁锁定销并从法兰轴承上移动轴来拆卸test头。