Patent ID: 8230743

Claim:
A pressure sensor comprising: a substrate including a first side and a second side, the substrate including an opening extending between the first side and the second side; a pressure sensing die mounted directly on the first side of the substrate with an adhesive, wherein the pressure sensing die includes a diaphragm and one or more piezoresistive elements positioned on the diaphragm, wherein the pressure sensing die is positioned over the opening; a first housing member positioned on the first side of the substrate and defining a first cavity around the pressure sensing die, wherein the first housing member includes a first pressure opening defined by one or more first edges of the first housing member, wherein the one or more first edges are tapered and/or chamfered; a first flourosilicone gel positioned in the first cavity to cover at least part of the pressure sensing die and at least part of the first side of the substrate; 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 defined by one or more second edges of the second housing member; and a second flourosilicone gel positioned in the second cavity to cover at least part of the second side of the substrate.