Method for manufacturing core substrate and core substrate comprising in packaging substrate

Abstract

An embodiment relates to a method for manufacturing a core substrate included in a packaging substrate, comprises: operation A, preparing a glass core in which through-holes and a cavity are disposed; operation B, preparing an adhesive laminate in which an adhesive layer is disposed on a lower surface of the glass core such that the glass core and the adhesive layer are vertically arranged; operation C, disposing a cavity element in the cavity of the adhesive laminate; operation D, preparing a fill-in laminate by disposing a dispensing material in a space between the cavity element and a wall surface of the cavity; operation E, preparing an adhesion-strengthening treatment layer by performing an adhesion-strengthening treatment on a surface of the fill-in laminate; operation F, preparing an insulating laminate by forming a first surface insulating layer on an upper surface of the glass core of the fill-in laminate; and operation G, preparing the core substrate by removing the adhesive layer from the insulating laminate and forming a second surface insulating layer on a lower surface of the glass core.

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