Patent ID: 9190188
Filing Date: 2015-11-17
Classification: B05D,H01B,H05K

Abstract:
1. A polymer thick film copper conductor composition comprising: (a) 40 to 95 wt % copper powder possessing particles with an average particle size of 0.2 to 10 μm and a surface area/mass ratio in the range of 0.2 to 3.0 m (b) 4 to 35 wt % organic medium comprising (c) 0.25 to 5 wt % reducing agent comprising a hydroxyl containing compound; and (d) 0.0 to 5 wt % viscosity stabilizing agent comprising a carboxylic acid containing compound or phosphate containing compound; wherein the wt % are based on the total weight of said polymer thick film copper conductor composition.