Wafer-level test system using a physical stimulus for a MEMS accelerometer

Yaqiong Chen*, Zhenhai Zhang, Yantao Shen, Kejie Li

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

6 Citations (Scopus)

Abstract

A wafer-level test system is proposed for a high-g MEMS accelerometer based on a probe station. To simulate a high shock on the packaged sensors, a physical stimulus is loaded on the dies using a micromechanics device. The probe-station controller is controlled by a MFC program developed within the Microsoft Visual Studio Platform. The controller is able to move with three degrees of freedom in performing the automated tests of wafers. A data acquisition board is used to receive output signals from the dies through a reliable contact between the probe card and pads. The test procedure runs a LabVIEW program for post-processing the acquired signals including evaluating computing sensitivity and other parameters. An analysis of the test results determines at the wafer-level whether the die is good. This method may be applied during manufacturing of the high-g MEMS accelerometers where the benefits are seen in reduced production costs and a shorter time to market.

Original languageEnglish
Title of host publication2017 IEEE International Conference on Real-Time Computing and Robotics, RCAR 2017
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages145-150
Number of pages6
ISBN (Electronic)9781538620342
DOIs
Publication statusPublished - 2 Jul 2017
Event2017 IEEE International Conference on Real-Time Computing and Robotics, RCAR 2017 - Okinawa, Japan
Duration: 14 Jul 201718 Jul 2017

Publication series

Name2017 IEEE International Conference on Real-Time Computing and Robotics, RCAR 2017
Volume2017-July

Conference

Conference2017 IEEE International Conference on Real-Time Computing and Robotics, RCAR 2017
Country/TerritoryJapan
CityOkinawa
Period14/07/1718/07/17

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