The invention relates to a method for a fabrication of a pore comprising membrane and a pore comprising membrane. The pore comprising membrane (1) comprises at least a porous metallic layer (3) on a porous substrate (6), wherein the porous metallic layer (3) is connected to the porous substrate (6) and the pores (4) of the metallic layer (3) overlap at least partially with the pores (7) of the porous substrate (6). The method comprises at least the following steps: i) deposition of the metallic layer (3) onto a support material (2), wherein the deposited metallic layer (3) forms a plurality of feedthroughs, in particular a percolation network on the support material (2), ii) removal of the support material (2), iii) connecting of the metallic layer (3) with the porous substrate (6) such that pores (4) of the metallic layer (3) overlap at least partially with the pores (7) of the porous substrate (6).