一种可嵌入测试设备的微弱电流测量板卡设计方法  

A Design Method for aWeak Current Measurement Board Embeddable in Test Device

作　　者：余储贤 詹文法 胡心怡 郑江云 张庆平 蔡雪原 YU Chuxian;ZHAN Wenfa;HU Xinyi;ZHENG Jiangyun;ZHANG Qingping;CAI Xueyuan(School of Computer and Information,Anqing Normal University,Anqing 246133 China;China College of Electronic Engineering and Intelligent Manufacturing,Anqing Normal University,Anqing 246133,China)

机构地区：[1]安庆师范大学计算机与信息学院,安徽安庆246133 [2]安庆师范大学电子工程与智能制造学院,安徽安庆246133

出　　处：《安庆师范大学学报(自然科学版)》2024年第4期37-42,共6页Journal of Anqing Normal University(Natural Science Edition)

基　　金：集成芯片与系统全国重点实验室开放课题资助课题(SKLICS-K202316);安徽省教育厅科研基金(2023AH050500)。

摘　　要：随着集成电路行业的快速发展,一些集成电路对功耗的要求越来越低,导致集成电路工作电流值越来越小,如何有效测试这些微弱电流量是一个急需解决的问题。本研究提出一种可嵌入测试设备的微弱电流测量板卡设计方法,并运用取样电阻法设计了微弱电流测量板卡,有效减小了偏置电流和噪声,以便快速准确地处理微弱电流信号数据,从而达到响应时间短、信号处理快和测量误差小的目的。在设备需要测量微弱电流时,可以快速准确地检测集成电路皮安级电流,还可以不需更换高档测试设备而直接通过增加测量板卡来达到提升测试设备测量精度的目的,进一步降低了集成电路测试成本。With the rapid development of integrated circuit industry,the power consumption requirements for some integrated circuits are becoming increasingly lower,leading to smaller operating current values.Effectively testing these weak currents is an urgent issue to be addressed.A design method of weak current measuring board that can be embedded in the test equipment is presented in this paper.When testing,picoampere-level currents from integrated circuit can be detected by the board.The measurement accuracy of the test equipment can be improved by adding the measuring board without replacing the high-grade test equipment,further reducing the testing costs of integrated circuits.

关 键 词：集成电路测试 微弱电流测量板卡 取样电阻法 偏置电流 测试负载板 

分 类 号：TN47[电子电信—微电子学与固体电子学] TH89[机械工程—仪器科学与技术]