Patent ID: 9137899
Filing Date: 2015-09-15
Classification: H01L,H05K,Y10T

Abstract:
1. A process of an electronic structure, comprising: providing a carrier board with a first surface; forming a first release layer on the first surface of the carrier board, wherein the first release layer has property of temporary adhesion capability and the first release layer entirely or mostly overlays the first surface; forming a built-up structure on the first release layer, wherein step of forming the built-up structure comprises at least disposing a conductive layer, a dielectric layer, a conductive blind via passing through the dielectric layer, a core layer or an electronic device on the first release layer of the carrier board; after forming the built-up structure on the first release layer, providing another carrier board with another release layer, wherein the another carrier board is aligned and adhered on the built-up structure; separating the built-up structure from the carrier board on the edges so as to be transferred onto the another carrier board by using a physical lift-off process; turning-over the built-up structure and forming another built-up structure on the built-up structure; and performing a separating process so that the built-up structure is separated from the carrier board to form an electronic structure.