[sdiy] Another new hard to find part....

[Magnus Danielson]

From: karl dalen <dalenkarl at yahoo.se>
Subject: Re: [sdiy] Another new hard to find part....
Date: Wed, 7 Jul 2004 03:24:13 +0200 (CEST)
Message-ID: <20040707012413.32736.qmail at web53505.mail.yahoo.com>

> --- Magnus Danielson <cfmd at bredband.net> skrev: > From: karl dalen 
> 
> > BGAs is a real blessing really. It is not DIY-friendly yeat,
> 
> 2 layer, outer rim BGA capsules are more sturdy and easyier
> to deal with then PLCC!!

Indeed.

> > > I find LQFP pain in in the rear end to solder, particularely
> > > when pins exeed 32!!
> > 
> > Tell that to the man who had to "correct" for the wrong foot-pattern between
> > PCB and ordered component for a 208 pin LQFP!
> > http://ebs.homedns.org/tips/hantverk/ytmontering/gal.jpg
> 
> Now that's an real piece of art!! Brave man!

This is not the kind of work for the weakhearted. However, now you know why I
got him to work for the company. Okay? ;O)

I think he actually did several of these cards... not to loose too much time.

He now has some 4 gig of pictures with components mounted on cards etc. etc.

Kids, don't try THIS at home:
http://ebs.homedns.org/bilder/smd/smd5/R0018287_Med.jpg
(this is how you probe two BGA pads from the other side the card... standard
mod issue - bring all your pads out, regardless of what they say.)

http://ebs.homedns.org/bilder/smd/
is the top of this site. Move into the directories, get lost in the scale and
time! ;O)

> > Notice the pin-extentions? 0.1 mm silver leads. Oh, by the way... this card
> > worked after this "correction". Let me tell you, that "engineer" got his
> > lesson tought. Now you know why one wants a good man by the soldering iron on
> > a bad day.
> 
> Would it be possible that this actually happened at NI? :-) 

"Any resemblance with real life is purely accidental and unintentional."

Cheers,
Magnus