Patent ID: 7383726

Claim:
A package structure of a sensor, comprising: a sensor chip constituted of a substrate and a detecting device formed on a front surface of the substrate; a through electrode that is arranged at a predetermined position of the substrate around the detecting device, electrically insulated at a circumference thereof, pierces the substrate from the front surface to a rear surface, is connected with a lead pattern of the detecting device at an end thereof on the front surface side, and connected with signal fetching means for the outside at an end thereof on the rear surface side; a conduction path body on which the sensor chip is mounted, and which has a conduction path for a fluid extending to the detecting device being formed on a surface thereof facing the detecting device; sealing means that is interposed between the sensor chip and the conduction path body to assure sealing properties of the conduction path; and a pressing member that presses the sensor chip against the conduction path body from the rear surface side to be fixed, and has a region where the signal fetching means is led out from the end of the through electrode on the rear surface side being formed therein.