To all: Are there any negative effects to using ultrasonic cleaning on nickel/gold plating? My reason for asking is this. We recently plated two panels and tape tested them prior to ultrasonic cleaning. Then after ultrasonic cleaning and during our final machining process, we experienced poor gold to nickel adhesion. Any input would be greatly appreciated. Regards Ryan Modular Components National, Inc. 2302 Industry Court Forest Hill, MD 2150 PH (410) 879-6553 Fax (410) 838-7629 ################################################################ TechNet E-Mail Forum provided as a free service by IPC using LISTSERV 1.8c ################################################################ To subscribe/unsubscribe, send a message to [log in to unmask] with following text in the body: To subscribe: SUBSCRIBE TechNet <your full name> To unsubscribe: SIGNOFF TechNet ################################################################ Please visit IPC web site (http://jefry.ipc.org/forum.htm) for additional information. For technical support contact Hugo Scaramuzza at [log in to unmask] or 847-509-9700 ext.312 ################################################################