RIGID FLEXIBLE MULTILAYER PRINTED BOARD

摘要

PURPOSE:To follow an elongation or compression and to easily fold by filling flexible curable resin in a space cut in a specific width at one position of a bent part of a glass cloth base material. CONSTITUTION:Sheets each formed of a two-sided copper-clad layer 1 of glass cloth epoxy resin, a glass cloth base material flexible thermosetting resin prepreg 2 and a copper-clad layer 3 of glass cloth-base flexible thermosetting resin in an inner layer circuit are superposed to be integrated between rigid circuit boards 1. A bending part of the integrated base material is cut in a width of 0.5-5mm to form a space. The space is filled with resin 5 fed from the prepreg 2. Thus, it can follow its elongation or compression, be easily folded, and a large strength can be obtained.