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Date: | Fri, 5 Jun 2009 12:52:13 EDT |
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Well done Dewey
Might want to add vapor or vacuum deposition in there somewhere.
Might also want for the purposes of this industry to make reference to the
fact that they typically allow access to required terminations and that
they impede. limit or may obviate rework and repair depending on materials
and process.
For glob top you might add that they are cured in place.
All the best,
Joe
In a message dated 6/5/2009 8:33:59 A.M. Pacific Daylight Time,
[log in to unmask] writes:
ENCAPSULATION
Encapsulation is the encasement of a component in a resin coating by
dipping, spraying, or embedding with or without a mold. Encapsulants can be
designated as potting compounds, glob-topped or molding compounds.
POTTING
Potting involves surrounding the component housed in a container with a
liquid resin which is then cured in place. The container becomes an integral
part of the system such that the critical property that needs to be
maintained is the interfacial adhesion between the container and the cured resin
system for an optimum long-lasting reliable package.
CASTING OR EMBEDDING
Casting is similar to potting except (you don't inhale)¹ that the
container or mold is removed from the part after curing.
GLOB-TOPPED ENCAPSULATION
Glob-topped encapsulants consist of very viscous compounds that are
usually applied to a PB or other substrate .
MOLDING
Molding can be a general category of encapsulation. This is one of my
areas of expertise so I'll spare you the pressing details.
IMPREGNATION²
Impregnation is defined as process for the filling of voids and
interstices of a material with a liquid resin. Some of the types are as follows:
* TRICKLE IMPREGNATION
* VACUUM IMPREGNATION
* VACUUM-PRESSURE IMPREGNATION
* REINFORCEMENT IMPREGNATION
Note 1 - Establishing a precedent
Note 2 - Potential follow-up process to embedment
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