Howard, It might be that the reverse order of application would be acceptable for a wire bond? Is this an "all gold board"? The tab plater would likely sheer the immersion gold off anyway? Paul Wilson R&D Manager / Plant Chemist Circuit Center, Inc. 4738 Gateway Circle Dayton, OH 45440 Phone (937) 435-2131 Fax (937) 435-7698 http://www.circuitcenter.com -----Original Message----- From: Howard Lin [SMTP:[log in to unmask]] Sent: Wednesday, March 03, 1999 12:07 AM To: [log in to unmask] Subject: [TN] Two kinds of surface finish Dear All, I got one inquiry from our customer on two kinds of surface finisf for one board. They need both immersion gold and hard gold plating. Can I dirctly apply hard gold plating over immersion gold on gold finger area? Is there any quality issue that I should concern? I am very appreciated for any input. Regards, Howard Maxedge Electronic Corp. [log in to unmask] ################################################################ 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's web site (http://www.ipc.org) "On-Line Services" section for additional information. For technical support contact Hugo Scaramuzza at [log in to unmask] or 847-509-9700 ext.312 ################################################################ ################################################################ 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's web site (http://www.ipc.org) "On-Line Services" section for additional information. For technical support contact Hugo Scaramuzza at [log in to unmask] or 847-509-9700 ext.312 ################################################################