Patent ID: 7055392

Claim:
A micromechanical pressure sensor, comprising: a first component; and a second component bordering on the first component; wherein: the first component includes at least one diaphragm and one cavity, the cavity providing an access of the medium to be measured to the diaphragm, the second component includes an opening, and the cavity represents an extension of the opening first component is anodically bonded to the second component, the first component includes at least partially silicon, the diaphragm in the first component is made of the same material as the first component, the second component includes at least partially a metallization on the side opposite the first component, the second component has glass, Pyrex, Duran or Tempax, a pressure measurement of the pressure sensor takes place on the diaphragm by piezo elements, the medium having the pressure to be measured is guided through the opening in the second component, and the dimensions of the first cavity and the opening are aligned with one another so that at least one of the following is satisfied: (i) a transition from the wall of the opening to the wall of the first cavity has a stepless course; and (ii) the opening and the first cavity have essentially equal diameters.