公开(公告)号：US20190134951A1

公开(公告)日：2019-05-09

申请号：US16094044

申请日：2017-05-11

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： MASAYA KOYAMA ,  KIYOTAKA KOMORI ,  HIROAKI TAKAHASHI ,  YOSHINORI MATSUZAKI ,  TADASHI MORI

IPC: B32B15/092 ,  B32B38/18 ,  H05K3/38 ,  B32B15/20

Abstract: Included are removing an outermost layer or outermost layers on one side or both sides of liquid crystal polymer film; and a molding step of performing thermocompression molding on liquid crystal polymer film and metal foil stacked on the side of liquid crystal polymer film whose outermost layer is removed. A heating temperature in the molding step is in a range from a temperature equal to a melting start temperature, of the liquid crystal polymer film, measured by using a rigid body pendulum type viscoelasticity measuring device to a temperature 60° C. higher than the melting start temperature inclusive.