Post it again for advise on this. I wonder there are no comments on this? What kind of environmental control being exercised by PCB assembly houses --for SMT soldering operations?Do you use special solder pastes -less sensitive to slumping/moisture absorption?? Pl do comment on this. > ---------- > From: Dhawan, Ashok > Sent: October 9, 1997 12:41 PM > To: 'IPC TechNet' > Subject: ENVIRONMENTAL CONTROL > > What is kind of environmental control required for a surface mount > assembly area. > Is pre-reflow soldering operation normally enclosed in restricted > ambience of temp and humidity?? > Is there any IPC standard on facilities requirements on SMT production > floor?? > > thanks in advance for all inputs. > > [log in to unmask] > ############################################################## TechNet Mail List provided as a free service by IPC using LISTSERV 1.8c ############################################################## To subscribe/unsubscribe, send a message to [log in to unmask] with following text in the body: To subscribe: SUBSCRIBE TECHNET <your full name> To unsubscribe: SIGNOFF TECHNET ############################################################## Please visit IPC web site (http://www.ipc.org/html/forum.htm) for additional information. For the technical support contact Dmitriy Sklyar at [log in to unmask] or 847-509-9700 ext.311 ##############################################################