Patent ID: 8171800
Filing Date: 2012-05-08
Classification: G01L,H01L

Abstract:
1. A pressure sensing element, comprising: a spacer having first and second sides, the first side including a first recess, the second side including a second recess, the spacer further having a first insulated conductive via residing outside of the recesses; a first silicon die attached to the first side of the spacer and covering the first recess, the first silicon die having first and second sides, the first side of the first silicon die including a circuit, electrical interconnects, a second insulated conductive via coupled to the first insulated conductive via and a first silicon diaphragm; and a second silicon die attached to the second side of the spacer and covering the second recess, the second silicon die having first and second sides, the first side of the second silicon die including a circuit, electrical interconnects and a second silicon diaphragm.