Julien Bouchard wrote: > Hi everybody, > We recently start to use an ultrasonic stencil cleaners for our stencils. > It' work well, but after some time, we saw a lot of fiducial that the black > epoxy have been partially or totaly remove. I want to know if someone had a > similar problem with a stencil cleaner. Also, we looking for a material to > repair the black epoxy of the fiducial ( for now we use ink pen, but we need > to redo the job everytime we change of product). Our stencil are from UTZ > and our stencil cleaner is from SMART-SONIC. Thank you. > > Julien Bouchard > Matrox - Process Engineer > Email : [log in to unmask] > > --------------------------------------------------------------------------------- > 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 > 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 > --------------------------------------------------------------------------------- Hi, I have also seen the problem, with the same cleaning equipment. To repair the fiducial and get the best contrast we use a Loctite 4501 kit. Today our stencil deliverer is pigmenting the metal in the half etched fiducial mark and it works like a dream. -- best regards Joe Vella [log in to unmask] Website http://www.bbelectronics.dk --------------------------------------------------------------------------------- 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 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 ---------------------------------------------------------------------------------