Ask your customer to pay for the PCBA once it undergoes the Ionic Contamination Test with Omega tester as the flux residue will become white residue on the PCBA. Who is your customer who might advice you how to go about the process. -----Original Message----- From: TechNet [mailto:[log in to unmask]] On Behalf Of WTSJ-Willis Tam Sent: Wednesday, 11 July 2012 3:14 PM To: [log in to unmask] Subject: [TN] 答复: [TN] Ionic Contamination Test for Non-clean PCBA, is it really necessary? Bob, The Omega Test is not yet set up, as I don't have the test result now. Actually, we don't want to set up such a test. Regards Willis Tam -----邮件原件----- 发件人: TechNet [mailto:[log in to unmask]] 代表 Robert Kondner 发送时间: 2012年7月10日 21:50 收件人: [log in to unmask] 主题: Re: [TN] Ionic Contamination Test for Non-clean PCBA, is it really necessary? Willis, I would be curious to hear the test restuls. Do you have any rework ( :-) ) and do you need to clean that for cosmetic appearance? If so soes that cleaning affect the No Clean flux? Thanks, Bob K. -----Original Message----- From: TechNet [mailto:[log in to unmask]] On Behalf Of WTSJ-Willis Tam Sent: Tuesday, July 10, 2012 12:13 AM To: [log in to unmask] Subject: [TN] Ionic Contamination Test for Non-clean PCBA, is it really necessary? Hi Technet, We have implemented non-clean SMT and wave soldering processes for more than 10 years and there's no any issue, but recently one of our new customer required us to buy the Omega tester and set up the Ionic Contamination test for the non-clean PCBA, according to IPC-TM-650. 2.3.25. We feel the Ionic Contamination test might not be an appropriate test for the non-clean PCBA, but is there any technical paper or industry standard for this topic? We need some supporting documents for further discussion with our customer. Any suggestion/feedback would be appreciated. Regards Willis Tam ______________________________________________________________________ This email has been scanned by the Symantec Email Security.cloud service. For more information please contact helpdesk at x2960 or [log in to unmask] ______________________________________________________________________ ______________________________________________________________________ This email has been scanned by the Symantec Email Security.cloud service. For more information please contact helpdesk at x2960 or [log in to unmask] ______________________________________________________________________ ______________________________________________________________________ This email has been scanned by the Symantec Email Security.cloud service. For more information please contact helpdesk at x2960 or [log in to unmask] ______________________________________________________________________ ______________________________________________________________________ This email has been scanned by the Symantec Email Security.cloud service. For more information please contact helpdesk at x2960 or [log in to unmask] ______________________________________________________________________