Coating processes – With pretreatment of the base – Preapplied reactant or reaction promoter or hardener
Reexamination Certificate
2007-10-30
2007-10-30
Lam, Cathy F. (Department: 1775)
Coating processes
With pretreatment of the base
Preapplied reactant or reaction promoter or hardener
C427S306000, C427S316000, C427S322000, C427S431000, C427S443100, C204S157610
Reexamination Certificate
active
10467338
ABSTRACT:
The insulating layer formation step of forming an insulating layer24-1on a base for resin application20by applying polymeric material, which has been diluted with a solvent, filled with inorganic filler to the base for resin application and by drying the base for resin application; the circuit formation portion forming step of creating a circuit formation portion and a via hole25in insulating layer24-1that has been formed in the above described insulating layer formation step by means of a laser treatment; and the circuit formation step of forming a circuit23-1by plating the circuit formation portion and via hole25that have been created in the above described circuit formation portion forming step are provided and the insulating layer formation step, the circuit formation portion forming step and the circuit formation step are repeated a plurality of times in this order and, thereby, a circuit formation part (multi-layered substrate) is manufactured. Accordingly, a multi-layered circuit, even of more than three layers, having an arbitrary circuit formation can easily be manufactured at a low cost.
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Hirono Satoshi
Tanaka Hirokazu
Foley & Lardner LLP
Lam Cathy F.
Omron Corporation
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