PRINTED WIRING BOARD WITH TEMPORARY REINFORCING PLATE AND MANUFACTURING METHOD THEREOF, MANUFACTURING METHOD OF PRINTED WIRING BOARD, AND MOUNTING METHOD OF ELECTRONIC COMPONENT ON PRINTED WIRING BOARD

摘要

PROBLEM TO BE SOLVED: To solve a problem caused by residues such as adhesive on the surface of a covering insulating layer and the surface of a conductor pad.;SOLUTION: A temporary reinforcing board with a printed wiring board 10 includes an interlayer insulating layer 18 made of an insulating material, a conductor layer 16 including a conductor pad 16a formed on the interlayer insulating layer 18, a covering insulating layer 24 formed on the interlayer insulating layer 18 and the conductor layer 16 and having a plurality of openings 24a exposing the conductor pads 16a, a metal layer 28 formed on the covering insulating layer 24 and the conductor pad 16a, and a temporary reinforcing plate 14 stuck on the metal layer 28.;SELECTED DRAWING: Figure 1;COPYRIGHT: (C)2019,JPO&INPIT