METHOD OF PREPARING A DIE AND USE OF THE SO OBTAINED DIE FOR ETCHING A SUBSTRATE

摘要

Use of a die (1) for etching a substrate (2), the use provide to keep in contact the substrate (2) and the die (1) and put them under an electrical tension; the die (1) comprises a conductive element (3), a layer (9) of an insulating material, which is shaped so as to delimitate on a surface (4) of the conductive element (3) an uncovered area defining a pattern (6), and an electrolyte material (7) firmly placed into the pattern (6) in contact with the surface (4) of the conductive element (3) and presenting a viscosity of at least 50 Pa-s.