Tagungsband 2015
DOI: 10.5162/12dss2015/p10.2
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P10.2 - Driftstabile Hochtemperaturtaugliche Piezoresistive Drucksensorsysteme auf Siliziumbasis

Abstract: Die Erschließung neuer Anwendungsfelder und der Drang zur Größenreduktion von hoch stabilen Druckmesssystemen macht die Erweiterung der Einsatztemperaturbereiche der MEMS Primärsensoren nötig. Es wurden daher piezoresistive Drucksensorsysteme für einen deutlich erweiterten Temperaturbereich entwickelt. Die Leckströme der Sensoren konnten im Bereich bis 300°C um 5 Größenordnungen gesenkt werden. Der Einfluss von allseitigen statischen Drücken konnte unter Anderem durch die Anwendung des Niedertemperatur-Siliziu… Show more

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“…This method does not require an intermediate layer to create a stable connection. [2], [3] For glass frit (GF) bonding, a low melting glass paste is applied as an intermediate layer to a wafer via screen printing and bonded to a second wafer at temperatures of up to 400 -600°C. During the bonding process, the glass paste is heated until it is liquid and the wafers are pressed together.…”
Section: A Previous Manufacturing Methodsmentioning
confidence: 99%
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“…This method does not require an intermediate layer to create a stable connection. [2], [3] For glass frit (GF) bonding, a low melting glass paste is applied as an intermediate layer to a wafer via screen printing and bonded to a second wafer at temperatures of up to 400 -600°C. During the bonding process, the glass paste is heated until it is liquid and the wafers are pressed together.…”
Section: A Previous Manufacturing Methodsmentioning
confidence: 99%
“…Various processes such as lithography, etching and implantation are performed on the front side to achieve the functionality of the sensor (2). The later interface side is structured by etching with Potassium hydroxide solution (KOH) to generate 800 µm x 800 µm cavities with a membrane thickness of around 50 µm (3). Black silicon can be applied additionally onto the interface-side to enhance the bond strength [6].…”
Section: A Previous Manufacturing Methodsmentioning
confidence: 99%
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