I just wanted to thank the people who decided to spend some time in writing to me. I appreciated it a lot and I could understand more on what the local manufacturer was trying to sell us as a value added activity. Thanks, Ivan Il giorno 07/set/05, alle ore 03:59, Wolfgang E. Erat ha scritto: > Hi, sounds to me like the old jet pumice scrubbing, and yes, by > some stretch > you can picture this a sandblasting. Not sure how widely used this > is these > days but it sure does a good job. > > Wolfgang > > ----- Original Message ----- > From: "Ivanoe Pedruzzi" <[log in to unmask]> > To: <[log in to unmask]> > Sent: Tuesday, September 06, 2005 9:34 AM > Subject: [TN] Sand blasting pcb after copper etching > > > >> Dear Technetters, >> >> I'm not familiar with the process of making pcb and I would like to >> have your comments on something I was told from a pcb maker >> representative. >> >> "...in order to ensure a well insulation between traces, we do >> sandblasting (very little and tiny) pcb's after etching. >> this is to remove the bonding material that remains on the board >> after >> removing the copper. This is the only way to achieve a very good SIR >> result." >> >> Is this a normal procedure, was he correct in his claim? >> >> >> Thanks, >> Ivanoe Pedruzzi >> >> --------------------------------------------------- >> 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 > ----------------------------------------------------- > > --------------------------------------------------- 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 -----------------------------------------------------