公开(公告)号：US20220159843A1

公开(公告)日：2022-05-19

申请号：US17442284

申请日：2020-03-24

Applicant: SHPP GLOBAL TECHNOLOGIES B.V.

Inventor： Shijie SONG ,  Yuan ZHOU ,  Zhe CHEN

IPC: H05K3/46 ,  H05K1/02 ,  H05K1/03 ,  H05K3/18 ,  H05K3/10

Abstract: A process of manufacturing a multilayer sheet having electrically conductive patterns comprises feeding a first polymer layer and a second polymer composition to a calendering stack, the first polymer layer having an inner electrically conductive pattern disposed thereon, the first polymer layer comprising a first polymer composition, which contains a first polymer having a first glass transition temperature, and the second polymer composition comprising a second polymer and a laser direct structure additive (LDS), the second polymer having a second glass transition temperature that is 50 to 100° C. lower than the first glass transition temperature; pressing the first polymer layer and the second polymer composition together to laminate a second polymer layer which comprises the second polymer composition to the first polymer layer, the second polymer layer having an inner surface facing the inner electrically conductive pattern of the first polymer layer and an opposing outer surface; forming an activated surface pattern on the outer surface of the second polymer layer; and applying a conductive metal on the activated surface pattern, wherein the first polymer layer is in direct physical contact with the second polymer layer.