Cathy Ionic contamination as an absolute value is totally meaningless with "no-clean" chemistry. The first half of your question is therefore irrelevent. The second half can be achieved, depending on conditions, but I question its relevence, also. Brian Cathy Killen wrote: > > Hi everyone, > Can a no-clean process achieve ionic contamination <1.5ug cmsq according to > IPC TM-650 2.3.25 and a surface resistance > 5 X 10 (power of 8) according > to IPC TM-650.2.6.3.3? > If you believe it can be achieved, how? > How could you confirm it as an ongoing process control? > Cathy Killen > Training Instructor > [log in to unmask] <mailto:[log in to unmask]> > An Oasis of Training Excellence > * 028 38314305 > > DISCLAIMER > 1. The information contained in this E-mail is confidential. > It is intended only for the stated addressee(s) and access to it by any > other person is unauthorised. > If you are not the addressee, you must not disclose, copy, circulate or in > any other way use or rely on the information contained in this E-mail. Such > unauthorised use may be unlawful. If you believe that you have received > this E-mail in error, please inform us immediately and delete it and all > copies from your system. > 2. The views expressed in this E-mail are those of the author, and do > not represent the views of Smtek Europe., its associates or subsidiaries, > unless otherwise expressly indicated. In the avoidance of doubt, the > insertion of the name Smtek Europe., its associate or subsidiary under the > name of the sender may constitute an express indication that the views > stated in the Mail are those of the named company. > 3. Please note it is your responsibility to scan this E-mail for > viruses. > > --------------------------------------------------------------------------------- > 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 > --------------------------------------------------------------------------------- --------------------------------------------------------------------------------- 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 ---------------------------------------------------------------------------------