Enhanced polymeric encapsulation for MEMS based multi sensors for fisheries research

Publication: Research - peer-reviewJournal article – Annual report year: 2011

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This paper presents the challenges of a packaged MEMS-based multi sensor system that allow for direct exposure of the sensing part to sea water. The system is part of a data storage tag used on fish to provide the researcher with information on fish behaviour and migration. The sensor measures light intensity, temperature, pressure and conductivity. For precise and fast measurements a direct exposure of the sensor to the water is desirable. A potted tube encapsulation concept has shown to be promising for accurate and fast measurements in harsh environment, provided a tight sealing of the electronics can be made. In this paper we investigate the interfacial delamination of an epoxy encapsulated chip. Differently prepared silicon chips are investigated and it is found that silicon dioxide surfaces functionalised with (3-aminopropyl) triethoxysilane will improve this encapsulation approach compared to low pressure chemical vapor deposited (LPCVD) silicon nitride and untreated silicon dioxide.
Original languageEnglish
JournalSensors and Actuators A: Physical
Publication date2011
Volume170
Journal number1-2
Pages196-201
ISSN0924-4247
DOIs
StatePublished
CitationsWeb of Science® Times Cited: 1

Keywords

  • Harsh environment, Fisheries research, MEMS, Data storage tag, Oceanic environment, Silanisation, Packaging, Encapsulation
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