pp. 1073-1080
S&M2517 Research Paper of Special Issue https://doi.org/10.18494/SAM.2021.2915 Published: March 24, 2021 Relationship between Thermal Stability and Structure of MEMS Cantilevers Embedded in an Elastomer [PDF] Toshihiro Takeshita, Natsumi Makimoto, Takeshi Kobayashi, and Seiichi Takamatsu (Received April 30, 2020; Accepted July 22, 2020) Keywords: MEMS, force sensor, cantilever, thermal endurance, PDMS
The thermal stability of a micro-electromechanical system (MEMS) cantilever force sensor embedded in an elastomer was examined. When mounting the cantilever on an electronic substrate using solder reflow at 250 ℃, the elastomer expands against the back of the cantilever. The expansion often breaks the cantilever. The effects of the cantilever thickness and width on the breaking strength and the stress concentration points were simulated by finite element methods, and the results agreed well with experimental results. This work is expected to improve the thermal stability of MEMS cantilever force sensors by optimizing their design.
Corresponding author: Toshihiro TakeshitaThis work is licensed under a Creative Commons Attribution 4.0 International License. Cite this article Toshihiro Takeshita, Natsumi Makimoto, Takeshi Kobayashi, and Seiichi Takamatsu, Relationship between Thermal Stability and Structure of MEMS Cantilevers Embedded in an Elastomer, Sens. Mater., Vol. 33, No. 3, 2021, p. 1073-1080. |