BRAZING FILLER METAL SHEET, ITS MANUFACTURING METHOD, AND ELECTRONIC COMPONENT

摘要

PROBLEM TO BE SOLVED: To provide a Pb-free brazing filler metal sheet which solves the problem of degradation in bonding reliability caused by voids in a brazing filler metal and a compound phase formed between particles. SOLUTION: The brazing filler metal sheet is composed of 70-90 mass% of Ag and the balance Sn, and has such a structure that a particle size of Ag is ≤300 μm and a particle size of Sn is ≤100 μm. A void ratio is ≤30%. Preferably, an aspect ratio of Ag particles is ≥1.2 on average. COPYRIGHT: (C)2007,JPO&INPIT