THE ADVANCED MEMS (aMEMS) PROCESS FOR FABRICATING WAFER LEVEL VACUUM PACKAGED SOI-MEMS DEVICES WITH EMBEDDED VERTICAL FEEDTHROUGHS


Torunbalci M. M. , Alper S. E. , AKIN T.

18th International Conference on Solid-State Sensors, Actuators and Microsystems (TRANSDUCERS), Alaska, Amerika Birleşik Devletleri, 21 - 25 Haziran 2015, ss.472-475 identifier

  • Basıldığı Şehir: Alaska
  • Basıldığı Ülke: Amerika Birleşik Devletleri
  • Sayfa Sayıları: ss.472-475

Özet

This paper presents a novel, inherently simple and low-cost fabrication and hermetic packaging method developed for SOI-MEMS devices, where an SOI wafer is used for the fabrication of MEMS structures as well as vertical feedthroughs, while a glass cap wafer is used for hermetic encapsulation and routing metallization. Glass-to-silicon anodically bonded seals yield a very stable cavity pressure of 150 mTorr after 15 days. The shear strength of the fabricated packages is above 7 MPa. Temperature cycling and ultra-high temperature shock tests results in no degradation in the hermeticity of the packaged chips.