Dhawan, See below. Bev Christian Nortel >---------- >From: Dhawan, Ashok[SMTP:[log in to unmask]] >Sent: Saturday, November 01, 1997 10:45 AM >To: [log in to unmask] >Subject: [TN] FW: ENVIRONMENTAL CONTROL > >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? Can only speak for our plant. >Whole plant air conditioned, from receving to shipping. Do you use special >solder pastes -less sensitive to slumping/moisture absorption?? No, but I hear that the Alpha Ultra 78 has very good screen life and I am sure that other >solder paste producers can also help you out if you ask. More below.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?? Yes, in our company. >> Is there any IPC standard on facilities requirements on SMT production >> floor?? Don't know. >> >> 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 >############################################################## > ############################################################## 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 ##############################################################