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Proceedings Paper

Teaching sensor technology and MEMS processing using an in-house educational MPW process
Author(s): Thorbjoern Ebefors; Edvard Kaelvesten
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Paper Abstract

This paper presents a new innovative way of teaching modern sensor technology and practical MEMS-processing by using an in-house Multi Project Wafer (MPW) process especially developed for education purposes. This process has been used as the base for a project course called Sensor Technology, which includes a substantial laboratory component. In this project, the student actively follows the complete sensor development process from design and fabrication to the evaluation of modern MEMS sensors. The design and CAD work for five different sensor types (each having several different versions) has completed prior to the course but the students are introduced to the tools used for the design and simulation of microstructures. The students themselves perform most of the fabrication steps in the cleanroom and all evaluation of the fabricated sensors. Our new in-house MPW-process allows the students to fabricate five different piezoresistive sensor types for measuring flow (both mechanical and thermal transducers), acceleration (both 1- and 3-axis), pressure and angular velocity using one mask set consisting of only four masks. Each sensor type then is produced in many different versions (size and geometry) giving the students flexibility to choose sensors for specific applications during the sensor evaluation. Successful evaluations of pressure, flow and acceleration sensors fabricated by the students have been carried out. The sensor evaluation part also gives the student experience in practical electrical measurements on real devices. Both the course concept and the unique educational MPW-process will be described in this paper.

Paper Details

Date Published: 29 September 1999
PDF: 11 pages
Proc. SPIE 3894, Education in Microelectronics and MEMS, (29 September 1999); doi: 10.1117/12.364513
Show Author Affiliations
Thorbjoern Ebefors, Royal Institute of Technology (Sweden)
Edvard Kaelvesten, Royal Institute of Technology (Sweden)

Published in SPIE Proceedings Vol. 3894:
Education in Microelectronics and MEMS
Fred Payne; M. Parameswaran, Editor(s)

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