FreeLists / si-list / [SI-LIST] Re: Electrically conductive Epoxy

[dgun@xxxxxxxxxx]

Here's my experience:

1) Transitions are usually more sensitive to mechanical placement and
dimension tolerances than to epoxy (although epoxy can influence
placement tolerance).

2) As for grounding, air voids, conductivity, and thickness of
the epoxy can all have an effect on quality of grounding. Also,
watch for epoxy creeping up the edges of modules/circuits.

--
Daniel

From: feicaguo <feicaguo@xxxxxxxx>
>=20
> A electrically conductive epoxy is used as grounding connections
> between packages and module housing.  I tested several samples, the
> RF transitions showed a significant variation.  I am wondering if the
> spread is caused by the epoxy.  Anyone has similar experiance?
>=20
> Thanks
>=20
> Fei


--=20
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