Tanaka 1st, Heraeus 2nd and MKE 3rd... it depends who you prior supply is... the 1st two may have wider process window, the 3rd is cheaper, but it might have narrow process window (talk to your workers, they know what I am talking about... it also depend upon your machine tolerance, if you have newer bonder, you might not see that much difference - good transducer... if you are high volume producer (in terms of number of wire bonds per shift... and high number of wire per unit), you want to pay a bit more just ensure no rework... (if you deal with 450-1000 wire bonds per unit, you don't want to save a bit on wire... the down time and rework will kill your SPC and for extra time to maintain the tooling)...IMHO. (by the way, if you are mil house, you might not allow to use Jap product due to WWII restriction... not sure if it lifted or not... very silly). On Feb 15, 2018, at 10:35 AM, Tempea, Ioan wrote: > Dear Technos, > > I've run into some delivery schedule shenanigans with our supplier > of Au ribbon (0.001"x0.003") for wedge bonding. > > Which manufacturers of this material would you recommend? > > Thanks, > > Ioan Tempea