Bev, I'd say one should distinguish between voiding in the bulk of solder and voiding at one of the two interfaces in a solder joints. I guess your question was about the former ones, as even 20% for the latter ones could be equivalent to a "disaster". Regards, Vladimir Vladimir SENTEC Testing Laboratory Inc. 11 Canadian Road, Unit 7. Scarborough, ON M1R 5G1 Tel: (416) 899-1882 Fax: (905) 882-8812 www.sentec.ca -----Original Message----- From: Bev Christian <[log in to unmask]> Date: Mon, 3 May 2010 15:47:36 To: <[log in to unmask]> Subject: [TN] Question about Voids in Solder Joints TechNetters, I was thinking about just putting "Voiding" as the e-mail title, but I contemplated what I might get in responses and amended my title accordingly. My question is the following: do any of your companies have upper limits on the amount of voiding in SMT solder joints of components that customers have access to - like connectors and switches? These of course are leaded components. I am not talking about Pb, but the form of the interconnect between the component body and the board. If so, are you willing and can you share? Bev RIM --------------------------------------------------------------------- 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. ______________________________________________________________________ This email has been scanned by the MessageLabs Email Security System. For more information please contact helpdesk at x2960 or [log in to unmask] ______________________________________________________________________ --------------------------------------------------- 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 email has been scanned by the MessageLabs Email Security System. For more information please contact helpdesk at x2960 or [log in to unmask] ______________________________________________________________________