A novel packaging stress isolation structure for SOI based MEMS gyroscopes

Yongcun Hao, Weizheng Yuan, Jianbing Xie, Honglong Chang

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

5 Scopus citations

Abstract

In this paper, we propose a packaging stress isolation structure for the silicon-on-insulator (SOI) based microelectromechanical systems (MEMS) gyroscopes. The structure is designed on the handle layer and consists of a circular disk, eight 'L-shape' elastic beams, and a support frame. The disk is located on the center of the die and occupies less than 5 percent of the whole handle layer area which can reduce the packaging stress and avoid the uneven stress distribution. The elastic beams are orthogonally distributed along the x and y axis connecting the disk with the support frame, which can further suppress stress evenly. The results reveal that the packaging stress transferred to the gyroscope is reduced by two orders of magnitude.

Original languageEnglish
Title of host publicationIEEE Sensors, SENSORS 2016 - Proceedings
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781479982875
DOIs
StatePublished - 5 Jan 2016
Event15th IEEE Sensors Conference, SENSORS 2016 - Orlando, United States
Duration: 30 Oct 20162 Nov 2016

Publication series

NameProceedings of IEEE Sensors
Volume0
ISSN (Print)1930-0395
ISSN (Electronic)2168-9229

Conference

Conference15th IEEE Sensors Conference, SENSORS 2016
Country/TerritoryUnited States
CityOrlando
Period30/10/162/11/16

Keywords

  • gyroscope
  • packaging
  • stress isolation

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