FLOWABLE SILVER PASTE AND SILVER SHEET PRODUCED FROM THE SILVER PASTE

摘要

PROBLEM TO BE SOLVED: To provide a flowable silver paste superior in transferability, and to provide a silver sheet produced from the flowable silver paste.;SOLUTION: (1) The flowable silver paste has a composition comprising an Ag powder with an average particle diameter of 0.5 to 20.0 μm in an amount of 40 to 80%, a water-soluble binder of 0.7 to 12 mass%, and the balance water with unavoidable impurities. (2) In the flowable silver paste according to the above item (1), the Ag powder with an average particle diameter of 0.5 to 20.0 μm is a spherical Ag powder. (3) The silver sheet has a composition comprising an Ag powder with an average particle diameter of 0.5 to 20.0 μm in an amount of 40 to 80%, and the balance the water-soluble binder with unavoidable impurities. (4) The silver sheet according to the above item (3) has a specific resistance of 100 to 500 kΩ cm.;COPYRIGHT: (C)2007,JPO&INPIT