Probably not. The mechanisms by which ultrasonic cleaning damages electronic components should not damage the internal layers of a PWB. No embedded components? > -----Original Message----- > From: TechNet [mailto:[log in to unmask]]On Behalf Of Cathy Killen > Sent: Friday, October 26, 2001 10:30 AM > To: [log in to unmask] > Subject: [TN] Cleaning paste when mis-aligned. > Importance: High > > > Hello All & the mountain dew man. > Can a mis-printed PCB be washed in a ultrasonic bath to remove all paste > particles? > Is there any danger of damaging innerlayers of PCB? > > Thanks in advance. > > Cathy Killen > Training Instructor > Smtek Europe Ltd. > --------------------------------------------------------------------------------- Technet Mail List provided as a free service by IPC using LISTSERV 1.8d 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 delivery of Technet send the following message: SET Technet NOMAIL Search previous postings at: www.ipc.org > On-Line Resources & Databases > E-mail 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 ---------------------------------------------------------------------------------