Good Morning, this is my first posting to this forum I hope to get some help. We are building a small PWB with 4 per panel. The problems we are encountering are on 0603 resistors & capacitors and SOIC (8pin) etc. These are all located near to or the center of the PWB. There is paste on the pad and the component placed properly but the paste will not wet onto the leads or terminations. What have we done? 1. Run the PWB at various profiles even the highest. Still have problem. 2. Changed from no clean to aqueous with an agressive flux. Still have problem. 3. Changed screen apertures. Still have problem. This PWB is multi layer and heavily populated. Are there any hints as to what we do next? _________________________________________________________________ Get your FREE download of MSN Explorer at http://explorer.msn.com/intl.asp --------------------------------------------------------------------------------- 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 ---------------------------------------------------------------------------------