MadSci Network: Physics

Re: Can silicon glue (in wire bonding) be weaked by thermal cycleing?

Date: Thu Aug 26 07:08:13 2004
Posted By: Frank Berauer, Technology Transfer Engineer Microelectronics
Area of science: Physics
ID: 1093363748.Ph

Dear Christopher,
Silicone is a common material for encapsulation of wire bonds,
and in fact I am using it right now. 
There are many Silicones from different manufacturers and the
exact material properties can be checked on material data sheets
or from the manufacturer.
Silicone is generally quite resistant to thermal cycling and
shock, but as all polymers it does get weakened by it. It depends
very much on what temperatures and times arer involved.
    Frank Berauer

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