| 摘要 |
PROBLEM TO BE SOLVED: To provide a laminate for a wiring board which suits with a wiring board used for a transformable part of a mobile phone of a folding type or a sliding type, capable of preventing disconnection of a conductor circuit even in the case of folding repetition, while having practical circuit processability, having electrical reliability and secondary processability such as component mounting and ACF connection, and having sufficient electric capacity of circuits. SOLUTION: The laminate for a wiring board comprises a metal foil layer having thickness of 7-15μm and a tensile modulus of≤40 GPa at 25°C in one side or both sides of a polyimide insulating layer having thickness of 10-15μm and a tensile modulus of≤5 GPa at 25°C. COPYRIGHT: (C)2008,JPO&INPIT |
