Is there anyone out there who can help me with understanding prepreg. If we
specify a given prepreg, (1080) does that give us any control over board
construction. I'm told that 1080 specifies a glass matt. So does this mean
that for a given glass matt the resin added to it can be as little or as
much as a supplier wants and the characteristics of that resin can be
whatever? So sheets of prepreg can be any thickness and have any flow
characteristics.
Also for mobile phone usage what are people using in FR4 to achieve
approriate dielectric characteristics? Are there a range of prepregs being
used or just 1080?

Regards
Edward Brunker

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