Pressure sensor

A pressure sensor, comprising:

• a diaphragm having a uniform thickness between a first principal surface and a second principal surface, the first principal surface receiving a pressure of a fluid that serves as a measurement object, the second principal surface being opposite to the first principal surface;
• a semiconductor chip having a rectangular shape and provided with resistors that constitute a strain gauge;
• and
• at least three separate and distinct support members made of an insulating material, each support member being fixed to the second principal surface at one end thereof and to the semiconductor chip at the other end thereof and extending perpendicularly to the second principal surface so as to support the semiconductor chip,
• wherein a first support member of the at least three support members is provided at a center of the diaphragm in plan view,
• wherein a second support member and a third support member of the at least three support members are provided on opposite sides of the first support member in regions in which the diaphragm is deformed when a pressure greater than a pressure applied to the second principal surface is applied to the first principal surface, and
• wherein the second and third support members are provided at positions point-symmetrical about the center of the diaphragm in plan view.