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Category : Electrical and electronic equipment & instrumentations > Components
Microsensor test
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DELTA has chosen to use the word microsensor to describe a chip that combines an integrated circuit (IC) and a silicon sensor.
In microsensors micro-mechanical, micro-electronic, micro-optic, and/or micro-fluidic functions are integrated into multifunctional systems.
Many microsensors are produced using the same processes as in IC-manufacturing utilising the highly developed IC technology. In this way, hundreds of microsensor chips are processed on the same wafer at the same time leading to in-expensive high-performance components. Microsensor technologies are well-suited for implementation of small intelligent transducers and actuators.
Typically, a microsensor is placed in harsh environments. For instance, small microphones in hearing aids are disposed to a warm, moist and salty environment. The harsh environment makes high demands on the encapsulation.
The encapsulation can be complicated because the sensor has to have an opening in order to allow the sensor to interact with its surroundings. Because encapsulation is complicated and expensive, most microsensors can gain advantages from wafer level testing. Such a test sorts out the bad microsensors and ensures that only work
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