Metal working – Method of mechanical manufacture – Electrical device making
Reexamination Certificate
2007-04-10
2007-04-10
Tugbang, A. Dexter (Department: 3729)
Metal working
Method of mechanical manufacture
Electrical device making
C029S065000, C029S614000, C029S620000, C029S621000, C204S222000, C205S096000, C205S103000, C205S105000, C338S304000, C338S314000
Reexamination Certificate
active
10470036
ABSTRACT:
The substrate (2) containing the via-hole (3) is inserted into an electrophoretic cell (1) and an electrode (6) (the “first electrode”) is placed on top of a first orifice of the via-hole(s) (3), to be implemented with electrical component(s), so that the electrode (6) totally covers the first orifice. Electrically charged either conductive and/or non-conductive particles are provided by immersing the volume of the via-hole(s) (3) in a conductive medium (17) consisting of the electrically charged particles. An electric field is created between the first electrode (6) and a second electrode (4) through the via-hole(s) (3) and the conductive medium (17) and the electrically charged particles are precipitated on the inner surface of the first electrode (6) that is directed to the second orifice of the via-hole(s) (3), until a desired portion of the volume of the via-hole(s) (3) is filled with a first layer of the charged particles having a desired thickness. More layers may be created by repeating this process using additional electophoretic cell(s), until remaining portion of the volume of the via-hole(s) (3) is filled with the additional charged particles.
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Phan Tim
Reed Smith LLP
Tugbang A. Dexter
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