[time-nuts] OT: 01005 Soldering Was: Low Cost GP-IB PCI card?

Jack Hudler jack at hudler.org
Tue Jul 11 19:03:38 UTC 2006


I have 2 questions below for your colleague.

I hand solder 01005 as well from time to time, not anything production mind you.
Though I've never met or heard of anyone else doing this by hand; though I'm
sure there are a few, this is a the first I've run across.

I've been using the poke and hope reflow method which give me 80% success
without rework.
I use an X/Y/Z/A pick and place setup (air pickup) I built; right now it's now
manual due to time constraints.  Make my own pickups from pipette's that are
heated and drawn together forming 2 channels, one for vacuum and the other
detects pickup (though I don't have this working very well but, not a problem in
manual).

Could you ask your colleague what soldering station he/she uses?
Has he/she considered air pickup and if so what keeps them from using it?

Thanks,
Jack

-----Original Message-----
From: time-nuts-bounces at febo.com [mailto:time-nuts-bounces at febo.com] On Behalf
Of Magnus Danielson
Sent: Monday, July 10, 2006 6:26 PM
To: time-nuts at febo.com; johnday at wordsnimages.com
Subject: Re: [time-nuts] Low Cost GP-IB PCI card?

Hi John,

May I only add that a dear friend and colleague of mine does 01005 soldering
by hand under microscope. Fortunatly we don't have to use them yeat.

For those that don't know the issue about 01005, let's just say they are
tiny as hell and weighs in at 30 microgram each. If your tweecer isn't at the
same potential it flies away on you if you don't approach it from the propper
angle. All that in a wellgrounded and ESD handling lab.

Cheers,
Magnus

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