Hi! Accelerated aging factor for a new PCB surface finish? Do you mean oxidation? Intermetallic growth? What type of finish? Please send additional detailed info covering your request. Dave Hillman Rockwell Collins [log in to unmask] ______________________________ Reply Separator _________________________________ Subject: ASSY: calculation of accelerated aging factor Author: [log in to unmask] at ccmgw1 Date: 7/9/96 2:25 PM Colleages in PCB industry, I am a process engineer new in this field, and I am currently searching for a mathematical formula (or a mathematical model), either physical or empirical, to calculate the accelerated aging factor for a new PCB surface finish, inside of a temperature/humidity chamber with constant temperature as T and constant relative humidity level as RH. Thanks in advance for your help. Nora Xiao [log in to unmask] The mail list is provided 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. The mail list is provided 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.