Bev, The tester you are talking about is most probably their high speed shear one, while Steve had been asked to pull soldered wires (which sounds WEIRD!!!). Steve, There are no criteria (at least the force value-wise) for that. What they might have meant was a criteria based on the fracture path. There is a good technical report (A. Eslambolchi, P. Johnson, M. Kaufmann and Z. Mei: Electroless Ni/Immersion Au Evaluation - Final Program Report, HP-EADC, September 1998, pp. 1-64), which your customer might want to read/ Regards, Vladimir -----Original Message----- From: TechNet [mailto:[log in to unmask]] On Behalf Of Bev Christian Sent: Friday, June 29, 2007 12:56 PM To: [log in to unmask] Subject: [TN] Steve, This is crazy, unless you have developed a bad reputation for producing Black Pad, which I doubt. If you want to see one of the Dage testers they are talking about, come see me. Why not just take some panels and dissolve off the gold with potassium thiocyanate and see what the nickel looks like? Bev RIM -----Original Message----- From: TechNet [mailto:[log in to unmask]] On Behalf Of Steve Kelly Sent: Friday, June 29, 2007 10:42 AM To: [log in to unmask] Subject: [TN] Good Morning to All, I have a customer who has asked me to do an on-going test for black pad. The test would require me to solder wires onto 624 BGA pads and then pull on the wires to determine if there is black pad . They have given me no criteria in terms of pull strength or what constitutes pass/fail. I obviously need some kind of pull tester to do this. Has anyone done anything similar? Any thoughts or ideas would be appreciated. Regards Steve Kelly Steve Kelly (416) 750-8433 (work) (416) 750-0016 (fax) (416) 577-8433 (cell) --------------------------------------------------- Technet Mail List provided as a service by IPC using LISTSERV 15.0 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 ----------------------------------------------------- --------------------------------------------------------------------- This transmission (including any attachments) may contain confidential information, privileged material (including material protected by the solicitor-client or other applicable privileges), or constitute non-public information. Any use of this information by anyone other than the intended recipient is prohibited. If you have received this transmission in error, please immediately reply to the sender and delete this information from your system. Use, dissemination, distribution, or reproduction of this transmission by unintended recipients is not authorized and may be unlawful. --------------------------------------------------- Technet Mail List provided as a service by IPC using LISTSERV 15.0 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 15.0 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 -----------------------------------------------------