Hermetic package comprising a getter, part comprising such a hermetic package, and associated manufacturing process

A hermetically sealed package forming a low pressure or vacuum enclosure, and receiving at least one component of imaging bolometer type, said hermetically sealed package comprising a monolithic layer of a getter material capable of capturing gases present in said enclosure, wherein the layer of getter material is deposited on the walls and/or the upper portion of said enclosure and has a thickness in the range from 20 nanometers to 200 nanometers, the layer of getter material being made of zirconium (Zr), of titanium (Ti), of vanadium (V), of hafnium (Hf), of niobium (Nb), of tantalum (Ta), of cobalt (Co), of yttrium (Y), of barium (Ba), of iron (Fe), or of an alloy of these materials.