Patent ID: 7200920

Claim:
A method for the implementation of one or more electrical components in the via-holes of a substrate comprising the steps: (a) completely immersing said substrate containing said via-holes into an electrophoretic cell containing a liquid suspension consisting of electrically charged conductive or non-conductive particles of material that has been chosen to form the first layer of the first of said one or more electrical components; (b) placing a first electrode such that it completely covers a first orifice of each of said via-hole(s), in which said first electrical component is to be implemented; (c) providing a second electrode positioned in said electrophoretic cell on the side of said substrate opposite to said first orifice; (d) creating an electric potential between said first electrode and said second electrode, which creates an electric field passing through said via-hole(s) and said liquid suspension, thereby causing said electrically charged particles to be deposited on the surface of said first electrode that is directed away from said first orifice of said via-hole(s), until a portion of the volume of said via-hole(s) is filled with a first layer of said charged particles; (e) removing said substrate from said electrophoretic cell; (f) completely immersing said substrate containing said via-holes into a different electrophoretic cell containing a liquid suspension consisting of electrically charged conductive or non-conductive particles of a different material that has been chosen to form the second layer of the first of said one or more electrical components; (g) repeat steps (b) to (e), wherein in step (d) said second layer is deposited within said via-hole on the surface of said first layer; and (h) repeat steps (f) and (g) as many times as necessary until said one or more electrical components have been implemented in the via-holes of said substrate.