High-Q Saddle-Add-On Metallization (SAM) inductors on HRS substrates
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Abstract
An optimized Saddle-add-on metallization process is used on surface passivated high resistivity silicon substrate to implement very high quality (Q) factor inductors. Test inductors with 5 and 10 nH inductance values are realized and measured to have maximum Q values of 37 at 1.5 GHz and 32 at 900 MHz respectively.
Keywords: Passive devices, Micromachining, RFIC, Inductors.