专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US09819334B1 Circuit for generating fast rise time pulse using coaxial transmission lines 有权
公开(公告)号：US09819334B1
公开(公告)日：2017-11-14
申请号：US15050260
申请日：2016-02-22
申请人： Jon E. Barth , John R. Richner
发明人： Jon E. Barth , John R. Richner
IPC分类号： H01P3/06 , H03K5/14
CPC分类号： H03K5/14 , H01P3/06 , H01P5/026 , H01P5/16
摘要： A signal generator produces an output signal in response to an input step signal using two transmission lines with characteristic impedances corresponding to the impedances of a signal source and a load. The input signal is applied to the inner conductor of the first transmission line, which has the outer shield grounded. The input signal is applied to the outer shield of the second transmission line, which has a floating outer shield. The inner conductor and the outer shield of the first transmission line are open at the second end. The inner conductor and the outer shield of the second transmission line are shorted at the second end. This transmission line is bridged by two resistors, the junction of which is connected to the inner conductor of the transmission line. The output signal has a first step at half the input voltage and a second step at the input voltage.

2. 发明授权

US10267838B1 Current sensor having microwave chip resistors in parallel radial arrangement 有权
公开(公告)号：US10267838B1
公开(公告)日：2019-04-23
申请号：US15710578
申请日：2017-09-20
申请人： Jon E. Barth , John R. Richner
发明人： Jon E. Barth , John R. Richner
IPC分类号： G01R31/12 , G01R31/00 , H01C10/16 , G01R1/067 , G01R31/26
摘要： A current sensor for use with a charged device model (CDM) tester includes an outer conductor and a cylindrical inner conductor. The inner conductor is positioned within a central cylindrical bore of the outer conductor to provide a characteristic transmission line impedance of approximately 50 ohms. A test probe conductor extends from the distal end of the inner conductor and is electrically connected to the inner conductor. An array of self-supporting ceramic chip resistors is radially positioned between the distal ends of the inner conductor and the outer conductor to provide a uniformly distributed resistance between the inner conductor and the outer conductor. When the test probe conductor is applied to a pin of a charged device under test (DUT), a discharge current passes through the resistors and produces a voltage on the inner conductor that is provided as a signal voltage proportional to the discharge current.

3. 发明授权

US07733107B1 Charged device model contact plate 有权
标题翻译：充电装置型号接触板
公开(公告)号：US07733107B1
公开(公告)日：2010-06-08
申请号：US11853570
申请日：2007-09-11
申请人： Jon E. Barth , John R. Richner
发明人： Jon E. Barth , John R. Richner
IPC分类号： G01R31/02
CPC分类号： G01R1/0408 , G01R31/025 , G01R31/2886
摘要： A tester for applying very fast transmission line pulses (“VFTLP”) to select pins of a device under test (“DUT”), for example, an integrated circuit. The tester also provides for leakage measurement testing of the DUT after VFTLP testing. An end of a coaxial cable is received within an aperture formed in a metal ground plane. The outer conductor of the coaxial cable is attached to the metal ground plane and the inner conductor of the coaxial cable projects above an upper surface of the metal ground plane. A grip attached to the metal ground plane selectively retains the DUT upon the upper surface of the metal ground plane in a position placing a select pin in physical contact with the projecting inner conductor of the coaxial cable, completing the VFTLP circuit.
摘要翻译：用于将非常快速的传输线脉冲（“VFTLP”）用于选择被测器件（“DUT”）的引脚的测试器，例如集成电路。测试仪还提供VFTLP测试后DUT的漏电测量测试。同轴电缆的端部被接收在形成在金属接地平面内的孔内。同轴电缆的外导体连接到金属接地平面，并且同轴电缆的内导体在金属接地平面的上表面上方突出。附接到金属接地面的把手选择性地将DUT放置在金属接地平面的上表面上，使选择销与同轴电缆的突出内导体物理接触，从而完成VFTLP电路。

4. 发明授权

US07449637B2 Pulse current sensor 有权
标题翻译：脉冲电流传感器
公开(公告)号：US07449637B2
公开(公告)日：2008-11-11
申请号：US11469800
申请日：2006-09-01
申请人： Jon E. Barth , John R. Richner
发明人： Jon E. Barth , John R. Richner
IPC分类号： H01R4/02
CPC分类号： G01R15/146 , G01R19/0053 , G01R31/002
摘要： A sensor measures the current in high frequency pulses (e.g., pulses having fast rise times) that are transported on coaxial transmission lines. The sensor includes an entrance coaxial conductor and an exit coaxial conductor that are interconnected by a continuous inner conductor. The outer conductors of the two coaxial conductors are interrupted and are interconnected by a sensing resistor with a substantially constant resistance. An output sensor coaxial conductor has an inner conductor electrically connected to a first end of the sensing resistor and has an outer conductor connected to a second end of the sensing resistor. Tapered ferrite cores are placed around the three coaxial conductors proximate the connections to the sensing resistor. Preferably, the sensing resistor is a tubular resistor formed on a dielectric cylindrical tube. The sensor is enclosed within a continuous conductive housing.
摘要翻译：传感器测量在同轴传输线上传输的高频脉冲（例如具有快速上升时间的脉冲）中的电流。传感器包括通过连续内导体互连的入口同轴导体和出口同轴导体。两个同轴导体的外导体被中断，并通过具有基本恒定电阻的感测电阻器互连。输出传感器同轴导体具有电连接到感测电阻器的第一端的内部导体，并且具有连接到感测电阻器的第二端的外部导体。锥形铁氧体磁芯放置在靠近感测电阻的连接处的三根同轴导体周围。优选地，感测电阻器是形成在电介质圆柱形管上的管状电阻器。传感器封闭在连续的导电外壳内。

5. 发明授权

US06429674B1 Pulse circuit 有权
标题翻译：脉冲电路
公开(公告)号：US06429674B1
公开(公告)日：2002-08-06
申请号：US09561312
申请日：2000-04-28
申请人： Jon E. Barth , John R. Richner
发明人： Jon E. Barth , John R. Richner
IPC分类号： G01R3102
CPC分类号： G01R31/2822 , G01R31/001 , G01R31/2839
摘要： A pulse generator generates a pulse that is transmitted to a device under test through a signal path that has a substantially constant impedance along its entire length. A voltage on the signal path and a current therethrough is measured in response to the pulse being generated.
摘要翻译：脉冲发生器通过沿其整个长度具有基本上恒定的阻抗的信号路径产生被发送到被测器件的脉冲。响应于产生的脉冲测量信号路径上的电压和通过其中的电流。

6. 发明授权

US09726707B1 Controlled impedance charged device tester 有权
公开(公告)号：US09726707B1
公开(公告)日：2017-08-08
申请号：US14303559
申请日：2014-06-12
申请人： Jon E. Barth
发明人： Jon E. Barth
IPC分类号： G01R31/26 , G01R31/12 , G01R31/28
CPC分类号： G01R31/12 , G01R31/002 , G01R31/2855
摘要： An ESD tester transforms high speed pulses from s 50-ohm impedance to the optimum lower impedance necessary to simulate the Charged Device Model (“CDM”) test impedance. Direct connections to the device under test eliminates the variations in spark or contact resistance of the present test while transforming the test pulse impedances to the appropriate level. Direct device connections with controlled impedance current paths provide either internal device discharge or external test pulse testing to simulate the original test. The sparkless direct connection controlled impedance transformation is identified by its ability to simulate similar device failures at similar test voltage failure levels.

7. 发明授权

US4618839A Microwave attenuator 失效
标题翻译：微波衰减器
公开(公告)号：US4618839A
公开(公告)日：1986-10-21
申请号：US722210
申请日：1985-04-11
申请人： Jon E. Barth
发明人： Jon E. Barth
IPC分类号： H01P1/22
CPC分类号： H01P1/227
摘要： A microwave attenuator forming two series connected L-pads is comprised of a plurality of electrically conductive, resistive, and non-conductive sections disposed on the surface of an elongate dielectric cylindrical base. The series resistances are connected through a conducting strip having an impedance that matches the impedance of the L-pads.
摘要翻译：形成两个串联连接的L焊盘的微波衰减器由设置在细长电介质圆柱形基底的表面上的多个导电，电阻和非导电部分组成。串联电阻通过具有与L焊盘的阻抗匹配的阻抗的导电条连接。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式