Hi All,
Today is my day for headaches.
We assembled a flex circuit (put a couple of connectors on) and did the Ionic contamination test after our standard cleaning procedure and failed.
After much scratching of heads we decided to take a bare flex - solder it - not add the connectors and test - passed the ionic test easily.
We then took the connectors and put them in the ionic unit - one hit 76 ug/cm2 as received and 6.9 after cleaning. The other was 9.6 ug/cm2 as received and 6.6 after cleaning.
So my question is - do the connector manufacturers have to sign up for a certain cleanliness level and second question what the *&?" do I do now.
Regards Steve Kelly

---------------------------------------------------
Technet Mail List provided as a service by IPC using LISTSERV 16.0
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
For additional information, or contact Keach Sasamori at [log in to unmask] or 847-615-7100 ext.2815
-----------------------------------------------------