One of the most challenging tasks for vacuum system designers is to create ultra-high and extreme-high vacuum pressures. Pumps capable of generating UHV and XHV pressure include Sputter Ion Pumps, Titanium Sublimation Pumps and Non-Evaporative Getters. With a variety of pumping elements available, one can select the most appropriate pump or combination of pumps for the UHV or XHV application.