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What is the silicon square on the LPS22HB and LPS25HB?

Question asked by mart J on Jun 18, 2018
Latest reply on Jun 19, 2018 by mart J

In section 10.1 of the datasheet for the LPS22HB the square on top of the package is labelled as "Sensing area (exposed silicon)", which makes it sound quite fragile.  However I noticed in a recent press release: the LPS22HB is listed as "Dust-free and water-resistant by design".  Is this square of silicon the sensing element or a protective cap (how fragile is it?), and is that the same of the LPS25HB?


Many thanks.