CMU MEMS Laboratory Publication Abstract

 

	in Proceedings of the 2002 IEEE International Test Conference (ITC), pp. 1075-1084, October 7-10, 2002, Baltimore, MD.
	Built-in Self Test of CMOS-MEMS Accelerometers
	N. Deb and S. Blanton ABSTRACT:
	A built-in self-test technique for MEMS that is applicable to symmetrical microstructures is described. A combination of existing layout features and additional circuitry is used to make measurements from symmetrically-located points. In addition to the normal sense output, self-test outputs are used to detect the presence of layout asymmetry that are caused by local, hard-to-detect defects. Simulation results for an accelerometer reveal that our self-test approach is able to distinguish misbehavior resulting from local defects and manufacturing process variations.
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	Full paper (PDF) (opens in new window).

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