Flat ceramic pressure sensor and relative production method

A method for producing a flat pressure sensor (130) comprising a flexible flat membrane (100) made of ceramic material and a relative rigid flat support (110) made of ceramic material, wherein said support (110) has a first main face (220) and a second main face (230), and said membrane (100) has a first main face (200) and a second main face (210), and in which said first main face (200) of said membrane (100) faces said second main face (230) of said support (110), the method comprising the following steps:

• making at least one first electrical circuit (501) on the first main face (200) of the membrane (100),
• making at least one second electrical circuit (502) on the first main face (220) of said support (110),
• depositing electrically conductive material (23) on the first main face (200) of the membrane (100) and/or depositing electrically conductive material (14) on the second main face (230) of the support (110),
• making a mechanical coupling between the membrane (100) and the support (110), wherein:
• making an electrical connection between said first electrical circuit (501) and said second electrical circuit (502) by applying electrically conductive material (503) to recess walls that extend over an entire wall thickness of said support (110) at a perimeter edge of said support (110).