Patent ID: 7856886

Claim:
A pressure sensor, comprising: a diaphragm having two pressure-receiving portions receiving a pressure and a thick portion adjacent to the pressure-receiving portions; a pressure sensitive element having a first and a second ends facing each other, wherein the pressure sensitive element extends in a direction intersecting the thick portion and the first end of the pressure sensitive element is bonded to a pressure-receiving surface of the pressure-receiving portions; a central portion of a portion at which the pressure-receiving portions and the first end are bonded is positioned at a side closer to the second end of the pressure sensitive element than a center of the pressure-receiving portions; a supporting portion including a supporting frame portion provided at a periphery of the two pressure-receiving portions; and a bending-restraining portion serving as the thick portion disposed between the two pressure-receiving portions, wherein the pressure sensitive element is disposed to step over the bending-restraining portion and is bonded to each of the pressure-receiving portions with the respective first and second ends.