Method of manufacturing packaging substrate and packaging substrate manufactured thereby

Abstract

The present disclosure relates to a method of manufacturing a packaging substrate and a packaging substrate manufactured thereby. The method of manufacturing a packaging substrate according to the present disclosure includes: generating a glass structure that is a core via, a cavity portion, or both on a glass core including a first surface and a second surface facing each other; forming an insulating layer on the first surface or second surface using an insulating film; and forming an upper layer including an upper distribution layer and an upper surface connection layer on the insulating layer. The forming of the insulating layer May include a primary curing operation of laminating a first insulating film on the first surface and primarily curing the first insulating film, and a secondary curing operation of laminating a second insulating film on the primarily cured first insulating film and secondarily curing the second insulating film. Accordingly, warpage may be improved, and separation of an electronic element may be prevented.