Info to all: IPC and JEDEC, joint developers of ANSI/J-STD-020 are in the final balloting stage of J-STD-020A. Contact me OFF NET if you would like to receive an e-mailed copy of this interim final document in Adobe Acrobat .pdf format. IPC/SMTA Electronics Assembly Expo Technical Committee Meetings, Conference, Exhibits Providence RI October 24-29 More info at http://www.ipc.org Jack Crawford, IPC Project Manager - Assembly 2215 Sanders Road, Northbrook IL 60062-6135 [log in to unmask] 847-509-9700 x 393 fax 847-509-9798 >>> ETS <[log in to unmask]> 08/14/98 12:00PM >>> Technet, After recieving a copy of the Jedec Standard, J-STD-020, I have a question that hopefully one of you might answer. The Convection Reflow profile requirement is listed as: Ramp up rate: +6 degrees C/sec. max Temperature maintained at 125 degrees C (+/-25): 120 seconds maximum Temperature maintained above 183 degrees C: 120 - 180 seconds Time at maximum temperature: 10 - 40 degrees C Maximum temperature: 220 degrees C (+5/-0) Ramp down rate -6 degrees C/sec max My question is when figuring the time maintained at 125 degrees should one only be counting the time actually maintained at 125 degrees or should I include time between 100 and 150 degrees C? Thanks, Brian ETS, LLC - West ETS, Inc. - East 3939 N. Freya St. PO Box 47887 Spokane, WA 99207 Plymouth, MN 55447 509-483-0900 (voice) 612-553-0051 (voice) 509-483-0331 (fax) 612-553-0246 (fax) [log in to unmask] [log in to unmask] Benefit from a direct relationship with the manufacturer! ################################################################ TechNet E-Mail Forum 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's web site (http://www.ipc.org) "On-Line Services" section for additional information. For technical support contact Hugo Scaramuzza at [log in to unmask] or 847-509-9700 ext.312 ################################################################ ################################################################ TechNet E-Mail Forum 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's web site (http://www.ipc.org) "On-Line Services" section for additional information. For technical support contact Hugo Scaramuzza at [log in to unmask] or 847-509-9700 ext.312 ################################################################ ################################################################ TechNet E-Mail Forum 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's web site (http://www.ipc.org) "On-Line Services" section for additional information. For technical support contact Hugo Scaramuzza at [log in to unmask] or 847-509-9700 ext.312 ################################################################