---------------------------- Forwarded with Changes --------------------------- From: Doug Whitnell::(WHTNLD) at ~FABRIK Date: 9/26/96 8:26AM To: Andrew P Magee at Rogers-MCD *To: 27=TechNet::[log in to unmask]::25=SMTP at ~FABRIK Subject: ASSY Moisture Release Rates and Prebake Parameters ---------------------------------------------------------------------- --------- The water vapor permeability ( g/sq.m/mil/day at 38C 90%RH) for polyimide film used in flex circuits is: Apical AV - 71 Apical NP - 66 Kapton HN - 54 Kapton KN - 28 Upilex S - 1.7 Andy Magee - Applications Engineer Rogers - Circuit Materials Tel: (602) 917-5237 Fax: (602) 917-5256 E-mail: [log in to unmask] ______________________________ Forward Header __________________________________ Subject: ASSY Moisture Release Rates and Prebake Parameters Author: Doug Whitnell::(WHTNLD) at ~FABRIK Date: 9/26/96 8:26 AM From: Doug Whitnell Date: Thu, Sep 26, 1996 8:26 AM Subject: ASSY Moisture Release Rates and Prebake Parameters To: Magee, Andrew P; TechNet We are looking for reports or other references for moisture release rates for different PWB substrate materials. Also recommended prebake parameters for time and temperature in air and for other atmospheres. Any leads will be appreciated Mel Parrish We can be reached at: e-mail: [log in to unmask] Manufacturing Technology Training Center (MTTC), Inc 543 Graaf Street Phone 619 446-5571 Ridgecrest CA 93555 Fax 619 446-4337 Home Page: http://www1.ridgecrest.ca.us/~mttc/mttc.htm Bulletin Board: 619 446-4087 *************************************************************************** * TechNet mail list is provided as a service by IPC using SmartList v3.05 * *************************************************************************** * To unsubscribe from this list at any time, send a message to: * * [log in to unmask] with <subject: unsubscribe> and no text. * ***************************************************************************