이 후, 유리 위에 PVB 필름을 적층하고, 상기 구리 패턴을 PVB 필름과 맞댄 뒤 120℃에서 라미네이션 하였다.
Thereafter, a PVB film was laminated on the glass, and the copper pattern was laminated at 120°C after being brought into contact with the PVB film.