Chris: Probably no reason for concern. The 77 is a good mask and I would not expect you to see any change over issues. We use the 77 in a lot of fairly stringent applications and have had no problems from assembly or end performance. Of course the mask will only be as good as the person applying it so you want to make sure if this is a new mask for the fabricator they know what they are doing and have their processes under control before changing over. You do not state what your concerns are i.e. electrical properties, physical properties, mechanical etc. If you can identify possible concerns it would be easier to provide a more definitive answer. Regards Michael Barmuta Staff Engineer Fluke Corp. Everett WA 425-446-6076 -----Original Message----- From: TechNet [mailto:[log in to unmask]]On Behalf Of Chris Ball Sent: Friday, June 03, 2005 5:38 AM To: [log in to unmask] Subject: [TN] LPI soldermask switch Speaking of soldermask... A supplier is switching from Learonal 5900 to Probimer 77. Any reason I should be concerned? I've looked at the datasheets for both and am not alarmed by anything, but am pretty sure I don't know enough to BE alarmed by anything and would appreciate some reassurance from the gurus out there. Thanks, -Chris This e-mail message is intended only for the use of the intended recipient(s). The information contained therein may be confidential or privileged, and its disclosure or reproduction is strictly prohibited. If you are not the intended recipient, please return it immediately to its sender at the above address and destroy it. --------------------------------------------------- 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 ----------------------------------------------------- --------------------------------------------------- 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 -----------------------------------------------------