Miker,

you are of course correct, but I don't think that this meaning of fanout
was questioned.

Fanout also means routing a short trace to escape from a SMD pad, and then
placing a via to connect to an inner layer or a plane.

Mit freundlichem Gruß
Kind regards

Gisbert Auge
N.A.T. GmbH
www.nateurope.com



                                                                                       
                     
                    "Robison Michael                                                   
                     
                    R CNIN"                 An:     "'Protel EDA Forum'" 
<[EMAIL PROTECTED]>   
                    <Robison_M@crane        Kopie:                                     
                     
                    .navy.mil>              Thema:  Re: [PEDA] what is Fan out?        
                     
                                                                                       
                     
                    17.10.2002 15:18                                                   
                     
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                    an "Protel EDA                                                     
                     
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Fan out is when a signal driver is driving more than
one input.  Seems like every technology has got it's
own little terminology.

Fan out is an important design consideration.  In the
digital world, you have to watch fan out because driving
too many receivers will exceed the current driving
capability of the driver.  Also, when you get into
signal integrity, you have to worry about impedance
balancing and nasty reflections.

miker

**********************
Hi,

I have been hearing this Fan out.
But what is fan out.
What it for?

Adeline



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