Looks like a plating problem of the termination. I have seen this before and it is usually caused by a problem with the plating over the termination being to thin and the plating bubble up on the termination during the reflow process. I would do a cross section of the part and see if the plating is to thin. Ofer Cohen <Ofer.Cohen@SEABRIDGENE To: [log in to unmask] TWORKS.COM> cc: Sent by: TechNet Subject: [TN] Resistor Acne <[log in to unmask]> 09/12/05 12:01 PM Please respond to TechNet E-Mail Forum; Please respond to Ofer Cohen Hello, all, An inspector found something that Steve Gregory named as "resistor acne" (all rights reserved to Steve). We were not able to figure out the possible causes and effect on the product reliability. Steve placed the picture on his site. Please go to http://www.stevezeva.homestead.com click on "Picture Page 2", then Look for "Resistor Acne"... Any idea will be welcomed. Regards Ofer Cohen Manager Quality Assurance, Reliability and Production Technologies Seabridge Ltd. - A Siemens Company Siemens COM FN A SB --------------------------------------------------- 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 ----------------------------------------------------- STATEMENT OF CONFIDENTIALITY: If you have received this e-mail in error, please immediately notify the sender by e-mail at the address shown. This e-mail and any attachments may contain confidential information. This information is intended only for the use of the individual(s) or entity to whom it is intended even if addressed incorrectly. Please delete it from your files if you are not the intended recipient. Thank you for your compliance. --------------------------------------------------- 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 -----------------------------------------------------