From: Chuck Simmons
Organization: You jest.
X-Mailer: Mozilla 4.61 [en] (X11; U; Linux 2.0.33 i586)
Subject: Re: having SMT components mounted
Date: Mon, 30 Sep 2002 01:10:55 GMT
NNTP-Posting-Date: Sun, 29 Sep 2002 18:10:55 PDT
Bob Wilson wrote:
> In article <3D985FEB.firstname.lastname@example.org>, email@example.com says...
> >NNTP-Posting-Date: Sun, 29 Sep 2002 15:28:33
> >Organization: ntl Cablemodem News Service
> >(Thought I'd sent this last week, Oh well...)
> >I've got to the stage where I'm wanting to put several >100pin devices
> >onto a board, and I don't trust my clumsy soldering - I can just about
> >manage 2mm pin-headers, but 0.65mm is smaller than I can *see*, let
> >alone solder!
> 0.65mm is not all that small. Myself, I have no problem hand soldering
> 0.65mm pitch quad packs without any magnifiers. Mind you, I am somewhat
> nearsighted. Nonetheless, for prototype volumes, you should not abandon hand
> soldering, since it is quite effective.
This is great if you can do it. I can do 0.05 inch pitch but I stop at
that. The 0.65mm and the 0.5mm stuff gets farmed out. The 0.5mm pitch is
very bad. On two occasions I have traced a board malfunction to a 0.5mm
connector but not been able to find the problem with an ohmmeter or by
visual inspection with a microscope. The problem simply cleared when the
connector was replaced. A great deal of time gets wasted on strange
problems like that and we have fewer such problems when we send jobs
... The times have been,
That, when the brains were out,
the man would die. ... Macbeth
Chuck Simmons firstname.lastname@example.org