A correlation of capacitive RF-MEMS reliability to AlN dielectric film spontaneous polarization
2009 ◽
Vol 1
(1)
◽
pp. 43-47
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Keyword(s):
Rf Mems
◽
This paper investigates the effect of spontaneous polarization of magnetron-sputtered aluminum nitride on the electrical properties and reliability of Radio Frequency – Micro-Electro-Mechanical Systems capacitive switches. The assessment is performed with the aid of application of thermally stimulated polarization currents in metal-insulator-metal capacitors and temperature dependence of device capacitance. The study reveals the presence of a surface charge, which is smaller than that expected from material spontaneous polarization, but definitely is responsible for the low degradation rate under certain bias polarization life tests.
2011 ◽
Vol 29
(1)
◽
pp. 01AC04
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1989 ◽
Vol 179
(1-2)
◽
pp. 121-127
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2013 ◽
Vol 26
(3)
◽
pp. 239-245
2016 ◽
Vol 27
(12)
◽
pp. 12527-12532
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Keyword(s):
2010 ◽
Vol 8
◽
pp. 012030
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Keyword(s):