silicone contamination

huangyhg

silicone contamination
anyone familiar with the control/monitoring of facilites for contamination by silicones (broad term i know, sorry)especially in areas where critical bonding operations take place?  any relevant standards (iest, mil etc.)?
check out our whitepaper library.
couple of things :
1. silicone (uncured) present on the surfaces to be bonded is the real problem. zero contamination is impossible and  any silicone present on the bonding surface adds to the knock down factor.
2. if you are looking to quantify, monitor the amount of silicone cntamination on the bonding surfaces: then xps is good reliable but expensive method. there is also a new method that has shown up in recent years, using uv light and reflection data. (
thanks ak, will check out the site.  we have used digesil and plasma etching as surface preps here.  a verification of the surfaces for "acceptable" levels of conyamination after treatment by one of the methods you mention would be helpful in qualifying our critical bonds.
thanks
ken