Patent ID: 8307714

Claim:
A dual port pressure sensor, comprising: a lead frame including a flag, leads, and fingers, wherein: a first opening extends through the flag and a second opening extends through the flag; and the leads are for providing external connections at a bottom side of the dual port pressure sensor; an encapsulant around portions of the flag, leads, and fingers, wherein the encapsulant has: a bottom cavity on a bottom side of the encapsulant exposing a bottom surface of the flag and bottom portions of the fingers; a first top cavity on a top side of the encapsulant; a first opening within the first top cavity aligned to the first opening in the flag and being larger than the first opening in the flag; a second top cavity on the top side of the encapsulant; a second opening within the second top cavity aligned to the second opening in the flag and being larger than the second opening in the flag; a dual port on the top side of the dual port pressure sensor attached to the first cavity and second cavity; a pressure sensor transducer attached to the bottom of the flag and covering the first opening in the flag; an integrated circuit attached to the bottom of the flag, spaced from the second opening in the flag, and electrically coupled to the fingers and the pressure sensor transducer; and a cap sealing the bottom cavity on the bottom side of the dual port pressure sensor.