公开(公告)号：US09443610B1

公开(公告)日：2016-09-13

申请号：US14730372

申请日：2015-06-04

Applicant: MICRON TECHNOLOGY, INC.

Inventor： Feng Pan ,  Shigekazu Yamada ,  Allahyar Vahidimowlavi ,  Jae-Kwan Park ,  Cairong Hu ,  Kalyan Kavalipurapu

IPC: G11C29/00 ,  G11C29/02 ,  G11C29/50 ,  G01R31/02

CPC classification number: G11C29/025 ,  G01R31/025 ,  G11C16/0483 ,  G11C2029/1202 ,  G11C2029/5006

Abstract: A system includes a first switch, an amplifier, a second switch, and a capacitor. The first switch is electrically coupled between a first reference voltage and a node. The amplifier has a first input, a second input, and an output, the amplifier to receive a second reference voltage on the first input and a sample voltage on the second input. The second switch is electrically coupled between the output of the amplifier and the second input of the amplifier. The capacitor is electrically coupled between the second input of the amplifier and the node. The first switch and the second switch are closed to initialize the node to the first reference voltage and to initialize the amplifier in unity-gain configuration. The first switch and the second switch are opened to detect a leakage current by sensing a change in the sample voltage.

Abstract translation: 系统包括第一开关，放大器，第二开关和电容器。 第一开关电耦合在第一参考电压和节点之间。 放大器具有第一输入端，第二输入端和输出端，放大器用于在第一输入端接收第二参考电压，并在第二输入端接收采样电压。 第二开关电耦合在放大器的输出端和放大器的第二输入端之间。 电容器电耦合在放大器的第二输入端和节点之间。 关闭第一开关和第二开关以将节点初始化为第一参考电压并以单位增益配置初始化放大器。 打开第一开关和第二开关，通过感测样品电压的变化来检测泄漏电流。