Thanks Lee, We know the gold is under control - I have SPC data on the thicknesses and purity which shows about a 5.5 sigma control level. We have also checked our packaging - it is clean. This is only coming from one of my customer's - the other customers I asked do nothing - just take them out and start bonding - consistently they get pulls in the 14 - 16 lb. range. Regards Steve Steve Kelly PH: (416) 750-8433 FAX: (416) 750-0016 CELL: (416) 577-8433 -----Original Message----- From: TechNet [mailto:[log in to unmask]] On Behalf Of Lee parker Sent: Wednesday, January 11, 2006 10:29 AM To: [log in to unmask] Subject: Re: [TN] Wire bondable gold pads Gold is the most noble metal of all. Gold is essentia Steve Gold is the most noble metal of all. Gold is essentially inactive which is also why it is so valuable and difficult to dissolve. If oxides are forming on gold surfaces it is usually because the under coating is exposed at the surface or there are impurities in the gold. Since bondable gold is usually pure gold, impurities should not be present. It the problem is organic films, (which are not complexed to the gold) the problem may be residual or packing. Best regards Lee J. Lee Parker, Ph.D. JLP Consultants LLC 804 779 3389 ----- Original Message ----- From: Steve Kelly<mailto:[log in to unmask]> To: [log in to unmask]<mailto:[log in to unmask]> Sent: Wednesday, January 11, 2006 10:17 AM Subject: [TN] Wire bondable gold pads Good Morning to all, We manufacture various circuits with electroplated wire bondable gold. As the final operation before packaging and shipping we plasma clean. Our customer is under the impression that the gold can contaminate during shipping and storage. My question is do other suppliers do special nitrogen/vacuum packaging of product like this to prevent this or is this something that should not be happening. Thanks in advance. Steve Kelly Steve Kelly PH: (416) 750-8433 FAX: (416) 750-0016 CELL: (416) 577-8433 --------------------------------------------------- Technet Mail List provided as a service by IPC using LISTSERV 1.8e To unsubscribe, send a message to [log in to unmask]<mailto:[log in to unmask]> with following text in the BODY (NOT the subject field): SIGNOFF Technet To temporarily halt or (re-start) delivery of Technet send e-mail to [log in to unmask]<mailto:[log in to unmask]>: SET Technet NOMAIL or (MAIL) To receive ONE mailing per day of all the posts: send e-mail to [log in to unmask]<mailto:[log in to unmask]>: SET Technet Digest Search the archives of previous posts at: http://listserv.ipc.org/archives<http://listserv.ipc.org/archives> Please visit IPC web site http://www.ipc.org/contentpage.asp?Pageid=4.3.16<http://www.ipc.org/cont entpage.asp?Pageid=4.3.16> for additional information, or contact Keach Sasamori at [log in to unmask]<mailto:[log in to unmask]> or 847-615-7100 ext.2815 ----------------------------------------------------- --------------------------------------------------- Technet Mail List provided as a service by IPC using LISTSERV 1.8e To unsubscribe, send a message to [log in to unmask] with following text in the BODY (NOT the subject field): SIGNOFF Technet To temporarily halt or (re-start) delivery of Technet send e-mail to [log in to unmask]: SET Technet NOMAIL or (MAIL) To receive ONE mailing per day of all the posts: send e-mail to [log in to unmask]: SET Technet Digest Search the archives of previous posts at: http://listserv.ipc.org/archives Please visit IPC web site http://www.ipc.org/contentpage.asp?Pageid=4.3.16 for additional information, or contact Keach Sasamori at [log in to unmask] or 847-615-7100 ext.2815 ----------------------------------------------------- --------------------------------------------------- Technet Mail List provided as a service by IPC using LISTSERV 1.8e To unsubscribe, send a message to [log in to unmask] with following text in the BODY (NOT the subject field): SIGNOFF Technet To temporarily halt or (re-start) delivery of Technet send e-mail to [log in to unmask]: SET Technet NOMAIL or (MAIL) To receive ONE mailing per day of all the posts: send e-mail to [log in to unmask]: SET Technet Digest Search the archives of previous posts at: http://listserv.ipc.org/archives Please visit IPC web site http://www.ipc.org/contentpage.asp?Pageid=4.3.16 for additional information, or contact Keach Sasamori at [log in to unmask] or 847-615-7100 ext.2815 -----------------------------------------------------