MEMS pressure membranes are advanced elements at the centre of high-performance pressure sensors that translate small variations in pressure into an electrical signal. These membranes are generally diaphragms made of silicon, polysilicon or metals that deform under pressure and cause a change of electrical resistance (or capacitance ) [2]. From monitoring important medical variables to keeping safe a surrounding in the industrial sector, they are vital for many types of systems. MEMS pressure membranes are designed to be quite sensitive and accurate, which makes them good for detecting small changes in pressure. They are also designed to endure harsh environmental conditions such extreme ambient temperatures and corrosion atmospheres, to yield a reliability in any application.