Thanks Rudy, Why do you say it will worsen the problems we see with water? Stop press - I have been authoritatively told this morning that if we want to remove particles of 10 microns diameter from the surface then we'll have to clean at a frequency of 40 MHz. Is there such a relationship between minimum particle removed and frequency or is my advisor talking nonsense? Regards, R Sedlak wrote: > Eric: Whereas IPA may well give you a good clean, it will probably > worsen the problems you are seeing with water... > > And then there might be some minor issues with flammability, and the > fact that you will need an explosion proof US cleaner... > > Other than that, it is a GREAT IDEA... :-) > > Rudy Sedlak > RD Chemical Company > > */Eric CHRISTISON <[log in to unmask]>/* wrote: > > We're currently ultrasonically cleaning some plastic parts in DI water > and may be incurring some microscopic damage to the surface. > > We've been directed to use IPA rather than DI water as a cleaning > medium > to give a gentler clean to reduce damage. > > Does this sound like a good plan and would there be any other fluids > that would be more suitable? > > Regards, > > > -- > Eric Christison Msc > Mechanical Engineer > Home Personal, Communication Sector > Imaging Division > > STMicroelectronics (R&D) Ltd > 33 Pinkhill > Edinburgh EH12 7BF > United Kingdom > > Tel: +44 (0)131 336 6165 > Fax: + 44 (0)131 336 6001 > > --------------------------------------------------- > 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 > ----------------------------------------------------- > > > ------------------------------------------------------------------------ > Do you Yahoo!? > Everyone is raving about the all-new Yahoo! Mail. > <http://us.rd.yahoo.com/evt=42297/*http://advision.webevents.yahoo.com/mailbeta> -- Eric Christison Msc Mechanical Engineer Home Personal, Communication Sector Imaging Division STMicroelectronics (R&D) Ltd 33 Pinkhill Edinburgh EH12 7BF United Kingdom Tel: +44 (0)131 336 6165 Fax: + 44 (0)131 336 6001 --------------------------------------------------- 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 -----------------------------------------------------