Joyce, We normally get our IPC boards from Diversified Systems in Indianapolis (www.divsys.com). And they sometimes carry a few packs in stock in a variety of metalizations. They are usually clean enough as delivered, but we have had a few questionable batches over the years. The same can be said of most suppliers I have worked with over the years. Just in case, we run everything through our in-line cleaner to be safe, considering how much time and effort goes into processing after we get them. There is always the option of taking the Gerber files (which both IPC and I keep on file) and having them made at the vendor of your choice. This is useful if you are going to be working with your chosen mask and your chosen metalization. Not something I would trust to an off the shelf item. What are you using the B-25A for? There might be better alternatives. As for the Sandia Chips, the last time I checked, they were being allowed to go obsolete, but you could order them, if you have access to a huge pile of gold. I know of no one who carries these as a stock item other than Sandia. Doug Pauls Joyce Koo <[log in to unmask] COM> To Sent by: TechNet [log in to unmask] <[log in to unmask]> cc Subject 03/02/2006 08:18 [TN] request for info AM Please respond to [log in to unmask] om Guys and Gals, need some info under your desk: (1) Does anyone supply "clean" off the shelf IPC-B-25A coupon for SIR test of conformal coat? Any of the SIR gurus have anything in their sleeves? (2) Does any of gurus know the current supplier of Sandia ATC03 and ATC04 chips? (not the ASIC type you have to buy a run of 20 wafer full of that stuff, just one waffle pack or two would be enough sentence me to the "lab prison" for rest of the year..may be longer). Many thanks in advance. Googling did me no good so far... Best regards, jk --------------------------------------------------- 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 -----------------------------------------------------