Patent ID: 7767255

Claim:
A process for production of an information storage medium comprising an array of dots of submicronic dimensions, said array being formed on a substrate, each dot containing at least one magnetic domain which has a direction of magnetisation and corresponds to a bit defined by this direction of magnetisation, said magnetic domain being formed by a thin layer of at least one magnetic material which laterally covers at least one of the sides of said dot, wherein the magnetic material is deposited on the dots by sending to the latter a first flux of atoms of said material at an oblique incidence relative to the normal to the plane of the array, each dot shadowing the dot following it in the direction of the first flux, and the magnetic signal resulting from the magnetic material deposited on top of the dots and at the base of the trenches separating rows of dots is neutralised, and wherein a resin covers the top of the dots before the magnetic material is deposited and this resin is eliminated after said magnetic material has been deposited, to thus obtain a first deposit on the sides of the dots.