Patent ID: 6910383

Claim:
A micro pressure sensor, comprising: a substrate with a rampart having a first top surface and standing on a plurality of plate portions and a plurality of first contact pads on said plate portions; and a silicon membrane having a second upper surface with plurality of piezo-resistors, a plurality of second contact pads and circuit patterns connected said plurality of piezo-resistors and said plurality of second contact pads; wherein the second upper face of said silicon membrane faces and bonds the first top surface of said substrate, and said rampart has a cavity forming in the center of the first top surface, and said plurality of contact pads surround said rampart; and further comprising a plurality of third contact pads on said plurality of plate portions of said substrate; and a plurality of thermo sensors, a plurality of fourth contact pads and circuit patterns connected said plurality of thermo sensors and said plurality of fourth contact pads on the upper face of said silicon membrane.