Harlan, What type of flux and cleaning process are you using? ---------- From: TechNet-request To: TechNet Subject: Nickel/Gold Immersion Date: Friday, March 29, 1996 8:10AM We have experienced dramatic yield improvements in SMT by utilizing Nickel/Gold (2-6 micro-inches of Gold over 100 micro-inches of Nickel) instead of Tin/Lead(HASL) on our Printed Wiring Boards. Due to Mixed Technology Designs, several of these Designs are processed through Wave-Solder. We have experienced the obvious, increased Gold contamination in the pot, but yields have also increased. We have stepped-up Pot samples and Pot changes to overcome this problem. Is anyone else processing Nickel/Gold plated Printed Wiring Boards across Wave-Solder and have there been any problems other then what I have listed above? Thanks for your time - Harlan