Peter,



Is it just me or does this practice seem like a violation of good EDS practices?  Seems like you could damage some gates in your part with the static generated by "writing" on a piece of paper.  At least that is what I was taught in all my EDS training years ago.  Maybe you throw the part away afterwards but some of those Altera FPGAs can be expensive I think.  Or am I totally wrong here?



Thad Schultz

EDA Librarian / Sys Admin

Woodward Industrial Controls 

[log in to unmask]

ph (970)498-3570

fax (970)498-3077

www.woodward.com





-----Original Message-----

From: TechNet [mailto:[log in to unmask]]On Behalf Of Peter Wong

Sent: Tuesday, November 07, 2006 10:27 AM

To: [log in to unmask]

Subject: Re: [TN] Altera BGA, lead-free or not?





Hi Steve,



We've found a simple test to determine the basic composition of the

balls for BGA's to determine if they were lead free of not is to try and

"write" with the balls on a piece of paper.  If they mark the paper like

a leaded pencil, then they are Sn-Pb.  If they don't mark the paper,

they are lead-free.



Peter



-----Original Message-----

From: TechNet [mailto:[log in to unmask]] On Behalf Of Steve Gregory

Sent: Tuesday, November 07, 2006 6:19 AM

To: [log in to unmask]

Subject: [TN] Altera BGA, lead-free or not?



Mornin' Everyone!

 

I've got a picture of the top of an Altera BGA to see if anybody knows

if this is a lead-free BGA or not:

 

http://stevezeva.homestead.com/files/Altera_BGA.jpg

 

We're thinking that maybe the "N" on the second line of numbers on the

part below the part number might be designating it as lead-free, but

we're not sure.

 

Good luck trying to call Altera and talk to a human being to find out

for sure, because it ain't happening!

 

-Steve Gregory-



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