Patent ID: 9643836
Date: 2017-05-09
CPC Classifications: B32B,B81B,B81C,G01L,H01L,Y10T

Claim:
1. A manufacturing method of a pressure sensor comprising the following steps: providing a support substrate comprising an upper surface, a lower surface, a lateral recesses and a central recess; providing a deformable membrane comprising strain gauges, a thinned zone in its centre; assembling the support substrate with the deformable membrane for obtaining a micromechanical structure wherein the support substrate is arranged above the deformable membrane, the lower surface of the support substrate is in contact with the deformable membrane, the lateral recesses of the support substrate are arranged above the strain gauges and the central recess of the support substrate is arranged above the thinned zone of the deformable membrane; and after said assembling of the support substrate with the deformable membrane, the method further comprising the step of forming electrical contacts in a single step of depositing at least one conductive material on the upper surface of the support substrate and in the lateral recesses of the substrate support, the conductive material extending into the recesses (