Florian Voelzke wrote:
> =

> One possible arrangement for a 10 layer PCB is:
> - 5 base laminate sheets, double sided
> - 4 prepregs, one between each base laminate sheet
> - Thickness of base laminate: 0.15mm
> - Copper: 1 oz, 35=B5m
> - Prepreg: 0.1mm
> =

> So you get: 5*(0.035mm + 0.15mm + 0.035mm) + 4*0.1mm =3D 1.5mm
> =


One small correction to my own email: It seems that you put always 2 =

prepregs above, like here:

http://www.ksg.de/en/design/Design_ML10_e.html

So you have to take thinner prepregs to reach the usual pcb thickness.

> If I look at the material table of one german manufacturer =

> (www.andus.de), this is quite conservative. I could get base laminates =

> of 0.05mm and prepregs of 0.05mm. That results in 0.8mm for a 10 layer =

> board with 35=B5m copper. That would be thin. I do not know if this would =

> be easy to manufacture, though...
> =

> Florian
-- =

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