Mitch Morey wrote My recommendation is to talk with your fab shop and
determine what
> exactly they can do for you (technical input), and find out if they
can
> fabricate using GETEK material (much like FR4, should be no additional
> costs) which has a lower and much more stable dielectric constant.
I don't know what b********t people tell you in the US of A, but
whenever the guys from GE talk to me they say that the material is more
expensive (has to be, it's new and better!) and the processing is not
the same as FR4 - the bond cycle is extremely tortuous and is at least
2x the length of an FR4 cycle. In my book, this means that there are
additional costs, and you should expect to pay more. I assume that
Mr.Morey is from an assembly, not Fab facility, so why don't you ask
your supplier what he thinks about the cost, and don't listen to the GE
sales guy who only wants you to specify his material.
sorry if this upsets the people at GE
Dougal
Dougal Stewart
Product Development Manager
Viasystems Selkirk Ltd
Selkirk, Scotland, TD7 5EJ
Tel: +44 1750 21601
Fax:+44 1750 22513
email   [log in to unmask]

This statement is a personal view and does not neccessarily reflect the
views of my employer.

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