Beitrge aus Forschung und Anwendung
2005
A method for fabricating a hybrid IC substrate comprises the steps of baking a conductor of a first group on an insulating ceramic substrate, forming an insulating porous active layer including a glass component and a small amount of a metal component having a catalytic action for electroless plating, forming a resist pattern on the active layer by using a photomask, and forming a conductor of a second group by electroless plating on a portion of the active layer not covered with the resist, whereby a portion of the active layer sandwiched between the conductors of the first and second groups is rendered conductive and a portion of the active layer in direct contact with the insulating substrate is maintained as an insulator.
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