Read only memory; memory used for permanent, storage of
unalterable data; nonvolatile memory.
Sacrificial anode
An active metal or alloy that corrodes and protects another metal
or alloy to which it is electrically coupled.
Sacrificial layer
A thin film that is later removed to release a microstructure from
its substrate.
Scanning electron microscope (SEM)
a microscope producing an image by using reflected electron beams
that scan the surface of a specimen.
Selectivity
The ability of a sensor to measure only one metric or, in the case
of a chemical sensor, to measure only a single chemical species.
Semiconductor
Nonmetallic material, such as silicon, whose electrical
conductivity is moderate and alterable by doping.
Sensitivity
The amount of change in a sensor's output in response to a change
at a sensor's input over the sensor's entire range. Provides an
indication of a sensor's ability to detect changes. For some
sensors, the sensitivity is defined as the input parameter change
required to produce a standardized output change.
SI units
International System of units based on the metric system and units
derived from the metric system.
Signal-to-noise-ratio
The ratio of the output signal with an input signal to the output
signal with no input signal.
