It's very difficult to answer your question as all surface finishes suffer with solderability issues based on the control of the original fabrication process or what assembly engineers like me to do to the poor green boards. It may be better to be a little more specific on the question to help TechNet answer your question, the solderability experts out there could write war and peace on the question posed. If it helps lets sit down at the seminar in Istanbul on 22nd October at the ESMAN Seminar You should also read through the IPC document IPC 4552 the IPC agent in Turkey is also ESMAN. Many thanks and all the best Bob Willis 2 Fourth Ave, Chelmsford, Essex, CM1 4HA England Tel: (44) 1245 351502 Fax: (44) 1245 496123 Mobile: 07860 775858 www.ASKbobwillis.com www.SolderingStandards.com PCB Design for Manufacture & Assembly Workshop 15th October www.ASKbobwillis.com PCB Inspection & Quality Control Workshop 3rd November www.ASKbobwillis.com/faworkshops.pdf Book Bob's "Step by Step Failure Analysis Workshop" 4th November www.ASKbobwillis.com/faworkshops.pdf -----Original Message----- From: TechNet [mailto:[log in to unmask]] On Behalf Of Halil Ibrahim YASLAK Sent: 14 August 2009 06:22 To: [log in to unmask] Subject: [TN] Solderability of ENIG Hello everybody, Does ENIG ( Electroless Nickel Immersion Gold) finish for printed circuit board cause any solderability problem? Is there anyone who has faced a soldering problem because of ENIG? Thank you in advance for your help. Saygılarımla / Best Regards, Halil İbrahim YAŞLAK ASELSAN Inc. MGEO Division P.O.Box:30, Etlik 06011- ANKARA / TURKEY Phone:(90-312) 847 5300 / 4907 Fax: (90-312) 847 5320 ###################################################################### Dikkat: Bu elektronik posta mesaji kisisel ve ozeldir. Eger size gonderilmediyse lutfen gondericiyi bilgilendirip mesaji siliniz. Firmamiza gelen ve giden mesajlar virus taramasindan gecirilmekte, guvenlik nedeni ile kontrol edilerek saklanmaktadir. Mesajdaki gorusler ve bakis acisi gondericiye ait olup Aselsan A.S. resmi gorusu olmak zorunda degildir. ###################################################################### Attention: This e-mail message is privileged and confidential. If you are not the intended recipient please delete the message and notify the sender. E-mails to and from the company are monitored for operational reasons and in accordance with lawful business practices. Any views or opinions presented are solely those of the author and do not necessarily represent the views of the company. ###################################################################### --------------------------------------------------- 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 -----------------------------------------------------