Patent ID: 7713771
Filing Date: 2010-05-11
Classification: G01L,H01L

Abstract:
1. A method of producing a differential pressure sensor comprising: fabricating a plurality of sensor die sites on a semiconductor wafer, forming first and second wafer scale seals on each of the sensor die sites, the first and second wafer scale seal being formed on first and second surfaces of each of the sensor die sites, providing each of the sensor die sites with die electrical output pads, singularizing the plurality of sensor die sites to provide a plurality of singularized die sites, each singularized die site representing a sensor die comprising one of the sensor die sites with its respective first and second wafer scale seals, die electrical output pads, and first and second surfaces, and providing a sensor die support member and a top cover to the sensor die, wherein the sensor die support member has a support member fluid access port with a support member port perimeter and the top cover has a top cover fluid access port having a top cover port perimeter and wherein the first and second wafer scale seals on the sensor die fully seal the first and second surfaces of the sensor die around the support member port perimeter and around the top cover port perimeter.