Patent ID: 8770034

Claim:
A pressure sensor comprising: a substrate including a first side and a second side; a first pressure sensing die mounted on the first side of the substrate, wherein the first pressure sensing die includes a diaphragm and one or more piezoresistive elements positioned on the diaphragm, wherein the first pressure sensing die is positioned over a first opening in the substrate, the first opening extending between the first side and the second side of the substrate; a second pressure sensing die mounted on the first side of the substrate, wherein the second pressure sensing die includes a diaphragm and one or more piezoresistive elements positioned on the diaphragm; a first housing member positioned on the first side of the substrate and defining a first cavity around the first pressure sensing die and the second pressure sensing die, wherein the first housing member includes a first pressure opening for exposing the first pressure sensing die and/or the second pressure sensing die to a first pressure; and a second housing member positioned on the second side of the substrate and defining a second cavity, wherein the second housing member includes a second pressure opening for exposing the first pressure sensing die and/or the second pressure sensing die to a second pressure.