公开(公告)号：US5991698A

公开(公告)日：1999-11-23

申请号：US852434

申请日：1997-05-07

申请人： Shanlin Hao ,  Ray V. Rigles ,  William P. Wood ,  Lars H. Ahlen ,  John C. Heitke

发明人： Shanlin Hao ,  Ray V. Rigles ,  William P. Wood ,  Lars H. Ahlen ,  John C. Heitke

IPC分类号： G11B5/187 ,  G11B5/31 ,  H01L21/00 ,  G06F19/00

CPC分类号： G11B5/3103 ,  H01L21/00 ,  G11B5/1871 ,  G11B5/3166 ,  Y10T29/49004 ,  Y10T29/49036 ,  Y10T29/49037

摘要： A lapping system data acquisition unit is disclosed for use in measuring resistances of multiple resistors embedded in a structure to be machined. Each of multiple independent current sources directs a current through one of the multiple resistors embedded in the structure during machining of a surface of the structure. Each of multiple voltage sensing devices couples to a separate one of the multiple resistors and provides a separate analog voltage output signal indicative of the resistance of the resistor. Each of multiple filters is coupled to a separate one of the multiple voltage sensing devices Analog-to-digital conversion circuitry coupled to the multiple filters generates a digitized signal for each of the filtered output signals.

摘要翻译： 公开了一种研磨系统数据采集单元，用于测量嵌入在待加工结构中的多个电阻器的电阻。 多个独立电流源中的每一个在加工结构的表面期间引导电流通过嵌入结构中的多个电阻中的一个电阻。 多个电压感测装置中的每一个耦合到多个电阻器中的单独一个，并且提供指示电阻器的电阻的单独的模拟电压输出信号。 多个滤波器中的每一个耦合到多个电压感测装置中的单独的一个。耦合到多个滤波器的模数转换电路为滤波的输出信号中的每一个生成数字化的信号。

公开(公告)号：US5748412A

公开(公告)日：1998-05-05

申请号：US580059

申请日：1995-12-20

申请人： Edward S. Murdock ,  John C. Heitke ,  Kevin J. Schulz

发明人： Edward S. Murdock ,  John C. Heitke ,  Kevin J. Schulz

IPC分类号： G11B5/11 ,  G11B5/39 ,  G11B5/40 ,  G11B5/48 ,  G11B5/127

CPC分类号： G11B5/4853 ,  G11B5/11 ,  G11B5/3903 ,  G11B5/40

摘要： A magnetoresistive head assembly includes a magnetoresistive sensor element, detection circuitry and first and second electrical conductors electrically connecting the magnetoresistive sensor element and the detection circuitry. A device exhibiting a non-linear voltage-current relationship is electrically coupled between the first and second electrical conductors. The device has a resistance which varies in relationship to an electrical potential between the first and second electrical conductors.

摘要翻译： 磁阻头组件包括磁阻传感器元件，检测电路和电连接磁阻传感器元件和检测电路的第一和第二电导体。 表现出非线性电压 - 电流关系的装置电耦合在第一和第二电导体之间。 该器件具有与第一和第二电导体之间的电位相关的电阻。