You're right the IPC specs leave it open. However, you can reasonably reject boards with excessive touch-up, and the fabricator will understand that other shops can do a better job, and they need to correct the root cause. The root cause is a good question to answer BTW. If the mask got scratched off by the HASL air knives it's one thing, but if it's flaking due to bad surface prep before mask, it's another. You could reject in both cases, but the latter is more justified (IMHO) Tim Reeves -----Original Message----- From: Mark Hargreaves [mailto:[log in to unmask]] Sent: Wednesday, April 23, 2003 12:48 PM Subject: Soldermask inspection question Hi All, Does IPC-6012 or IPC-SM-840 limit the size, number or location of soldermask touch up spots allowed per board? From what I've read, it seems that any amount of touch up is allowable. Thanks, Mark --------------------------------------------------- Technet Mail List provided as a free 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/html/forum.htm for additional information, or contact Keach Sasamori at [log in to unmask] or 847-509-9700 ext.5315 ----------------------------------------------------- --------------------------------------------------- Technet Mail List provided as a free 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/html/forum.htm for additional information, or contact Keach Sasamori at [log in to unmask] or 847-509-9700 ext.5315 -----------------------------------------------------