ST’s pressure sensors exploit their innovative patented VENSEN process technology to realize a mono-crystalline silicon membrane over a sealed cavity. The VENSEN process enables a thinner, robust, and low-cost sensing element than using a conventional bulk micromachining technology. A wheatstone bridge piezo-resistive configuration is diffused on the mono substrate to measure the pressure applied on the membrane. With VENSEN, the device is highly robust against over-pressure, high-shock, and angular displacement due to the thin cavity and low mass of the membrane. Competitive parts are constructed differently and most are  not capable of withstanding extreme overpressure situations.