Soldering Surface mount components
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I have bitten the bullet and have designed a PCB with surface mount
components. I had some trouble with holding the tiny critters in place for
soldering. I am placing both chip capacitors and a 14 pin IC and would like
to know a technique to hold the items in place while I solder them. I use a
fine tipped iron and some very fine solder and pre-tin the pads with solder.
Then I align the component and just touch the pad with the iron which seems
to work. There must be a better way to hold the component while I solder.Any
ideas - some sort of glue perhaps or is there a 'sticky' solder. Any advice
would be appreciated especially from someone who has ' been there - done
that'.
TIA
Vic
_____________________________________________________
Victor Fraenckel - The Windman vfraenc1@n...
KC2GUI
www.windsway.com
Home of the WindReader Electronic Theodolite
Read the WIND
components. I had some trouble with holding the tiny critters in place for
soldering. I am placing both chip capacitors and a 14 pin IC and would like
to know a technique to hold the items in place while I solder them. I use a
fine tipped iron and some very fine solder and pre-tin the pads with solder.
Then I align the component and just touch the pad with the iron which seems
to work. There must be a better way to hold the component while I solder.Any
ideas - some sort of glue perhaps or is there a 'sticky' solder. Any advice
would be appreciated especially from someone who has ' been there - done
that'.
TIA
Vic
_____________________________________________________
Victor Fraenckel - The Windman vfraenc1@n...
KC2GUI
www.windsway.com
Home of the WindReader Electronic Theodolite
Read the WIND
Comments
http://seattlerobotics.org/index.html did an article on using a toaster oven
to solder entire boards at one shot. After some trial and error, fantastic
results were achieved.
If you search the encoder, you might find it but I don't have time right
now--gotta go to work!
Original Message
From: Victorf <vfraenc1@n...>
To: Stamp Mailing List <basicstamps@egroups.com >
Sent: Wednesday, August 23, 2000 4:16 AM
Subject: [noparse][[/noparse]basicstamps] Soldering Surface mount components
> I have bitten the bullet and have designed a PCB with surface mount
> components. I had some trouble with holding the tiny critters in place for
> soldering. I am placing both chip capacitors and a 14 pin IC and would
like
> to know a technique to hold the items in place while I solder them. I use
a
> fine tipped iron and some very fine solder and pre-tin the pads with
solder.
> Then I align the component and just touch the pad with the iron which
seems
> to work. There must be a better way to hold the component while I
solder.Any
> ideas - some sort of glue perhaps or is there a 'sticky' solder. Any
advice
> would be appreciated especially from someone who has ' been there - done
> that'.
>
> TIA
>
> Vic
> _____________________________________________________
>
> Victor Fraenckel - The Windman vfraenc1@n...
> KC2GUI
> www.windsway.com
>
> Home of the WindReader Electronic Theodolite
> Read the WIND
>
>
>
>
>
somewhat, but the key is to get yourself a pair of stainless steel tweezers.
you can use them to hold the chip in place while you solder the first pin. I
would only pre-tin the first pin since you can't hold the iron, tweezers, and
solder at the same time.
once you've got the first pad down, it's a matter of steady hands, a really
fine iron tip, and being careful not to apply too much solder.
Jason Lavoie
Victorf <vfraenc1@n...> said:
> I have bitten the bullet and have designed a PCB with surface mount
> components. I had some trouble with holding the tiny critters in place for
> soldering. I am placing both chip capacitors and a 14 pin IC and would like
> to know a technique to hold the items in place while I solder them. I use a
> fine tipped iron and some very fine solder and pre-tin the pads with solder.
> Then I align the component and just touch the pad with the iron which seems
> to work. There must be a better way to hold the component while I solder.Any
> ideas - some sort of glue perhaps or is there a 'sticky' solder. Any advice
> would be appreciated especially from someone who has ' been there - done
> that'.
>
> TIA
>
> Vic
> _____________________________________________________
>
> Victor Fraenckel - The Windman vfraenc1@n...
> KC2GUI
> www.windsway.com
>
> Home of the WindReader Electronic Theodolite
> Read the WIND
>
>
>
>
>
--
________________________
Jason Lavoie
www.extremeroadshows.com
> components. I had some trouble with holding the tiny critters in place for
> soldering. I am placing both chip capacitors and a 14 pin IC and would
like
> to know a technique to hold the items in place while I solder them. I use
a
> fine tipped iron and some very fine solder and pre-tin the pads with
solder.
> Then I align the component and just touch the pad with the iron which
seems
> to work. There must be a better way to hold the component while I
solder.Any
> ideas - some sort of glue perhaps or is there a 'sticky' solder. Any
advice
> would be appreciated especially from someone who has ' been there - done
> that'.
Sure ... first, I don't pre-tin the pads. I found that the device doesn't
completely sit in place when I pre-tin. I prefer to use liquid solder flux
on the pads, place the device into position, holding it with either
needle-nosed pliers or a narrow screwdriver. Then, with a lightly tinned
soldering tip, touch one pin on two opposing corners. This is enough to old
it in place. Now, with a well tinned solder tip, start from one of the
unsoldered corners, and move the iron across the edge of pins. Each one
gets soldered, and so long as the board is well fluxed, it leaves a nice
solder connection. I've done this on SO packages (0.05" pin spacing) with
great success, but haven't tried the SS (0.0256" pin spacing) package just
yet. Same with chip capacitors & resistors ... if you tin the pads first,
the device sits on top of the solder "hills" when you place it. When you
solder the first side, it drops into place, but when you solder the second
connection on the device, it can't drop into place because the first solder
connection is holding it at an angle. Again, I found that fluxing the pads
first, then using a well tinned soldering iron, I could apply solder to both
the device and the pads as part of the same action.
-- Mitch
Stew Benedict
> I have bitten the bullet and have designed a PCB with surface mount
> components. I had some trouble with holding the tiny critters in place for
> soldering. I am placing both chip capacitors and a 14 pin IC and would like
> to know a technique to hold the items in place while I solder them. I use a
> fine tipped iron and some very fine solder and pre-tin the pads with solder.
> Then I align the component and just touch the pad with the iron which seems
> to work. There must be a better way to hold the component while I solder.Any
> ideas - some sort of glue perhaps or is there a 'sticky' solder. Any advice
> would be appreciated especially from someone who has ' been there - done
> that'.
>
> TIA
>
> Vic
> _____________________________________________________
>
> Victor Fraenckel - The Windman vfraenc1@n...
> KC2GUI
> www.windsway.com
>
> Home of the WindReader Electronic Theodolite
> Read the WIND
>
>
>
>
>
>
A guy at the SRS has been reflow soldering SMT parts in a toaster
oven (!) - seems to work pretty well. Apparently, the parts minutely self
align to the pads due to the surface tension of the hot solder. His online
how-to is here:
http://www.seattlerobotics.org/encoder/200006/oven_art.htm
I may try this soon 8^]
Duncan
component with a large needle to that it wouldn't move once you got one pad
solid the rest go easy. i also use a stereoscopic microscope to see what i
am doing. they are also great for close inspection i have a few used one
that i don't need, i would be willing to part with them for around 600$,
the optics are flawless. for whatever it is worth.
lw
Lincoln J. Worsham
liworsha@g...
Neuro Engineering Laboratory
NASA Ames Research Center MS 269-1
Moffett Field CA 94035-1000
Phone 650-604-0461
Fax 650-604-3594
http://www.arc.nasa.gov/computing.html
-
Ian Bobbitt
When an error occures:
A novice user blames himself,
a normal user blames the computer,
a power user sighs and gets another cup of coffee.
KB9VEX
ICQ: 14106680
It said requires windows 95 or better, so I installed Linux.
and then solder it, preferably with a hot-air soldering station.
This works great, even if you use normal superglue, a small drop will do,
and a normal fine tip, low power soldering iron.
Cheers,
Mike
Mensaje original
De: Lincoln Worsham [noparse]/noparse]mailto:[url=http://forums.parallaxinc.com/group/basicstamps/post?postID=8Ov8dYAsvS0T4R2E_asx3WtPGbMtZWHjYigJvtW7_ehkaYruIr_5U2DUN14Rb_NZqf1c864doSny6dmFHI6jMw]liworsha@g...[/url
Enviado el: mi
almost like window putty, but drys almost as fast as super glue,
Another tip is use solder flux before doing the soldering, and lay your
soldering iron tip on the trace leading to the device, the flux will make
the solder flow right up to the leg and you don't have to touch the the
device with the soldering iron. I've used this method for a few years
now and works really slick.
Frank
Original Message
From: "Jason Lavoie" <jlavoie@e...>
To: <basicstamps@egroups.com>
Sent: Wednesday, August 23, 2000 5:12 AM
Subject: Re: [noparse][[/noparse]basicstamps] Soldering Surface mount components
> we use solder paste, that is applied to each pad, and holds the chip in
place
> somewhat, but the key is to get yourself a pair of stainless steel
tweezers.
> you can use them to hold the chip in place while you solder the first pin.
I
> would only pre-tin the first pin since you can't hold the iron, tweezers,
and
> solder at the same time.
> once you've got the first pad down, it's a matter of steady hands, a
really
> fine iron tip, and being careful not to apply too much solder.
>
> Jason Lavoie
>
> Victorf <vfraenc1@n...> said:
>
> > I have bitten the bullet and have designed a PCB with surface mount
> > components. I had some trouble with holding the tiny critters in place
for
> > soldering. I am placing both chip capacitors and a 14 pin IC and would
like
> > to know a technique to hold the items in place while I solder them. I
use a
> > fine tipped iron and some very fine solder and pre-tin the pads with
solder.
> > Then I align the component and just touch the pad with the iron which
seems
> > to work. There must be a better way to hold the component while I
solder.Any
> > ideas - some sort of glue perhaps or is there a 'sticky' solder. Any
advice
> > would be appreciated especially from someone who has ' been there - done
> > that'.
> >
> > TIA
> >
> > Vic
> > _____________________________________________________
> >
> > Victor Fraenckel - The Windman vfraenc1@n...
> > KC2GUI
> > www.windsway.com
> >
> > Home of the WindReader Electronic Theodolite
> > Read the WIND
> >
> >
> >
> >
> >
>
>
>
> --
> ________________________
> Jason Lavoie
> www.extremeroadshows.com
>
>
>
>
>
>
toaster oven. Im not sure of all the details but its in the Seattle Robotics
Society newsletter online at www.seattlerobotics.org Click on the "Encoder"
section. I assume you glue down the peices and put it in a toaster oven for
a while and it will bake them down to the board. You need some special SMT
glue though.
In a message dated 8/24/2000 4:56:29 AM Eastern Daylight Time, fw1946@m...
writes:
> We also use the paste however we also use a dap of fast drying glue,
> almost like window putty, but drys almost as fast as super glue,
> Another tip is use solder flux before doing the soldering, and lay your
> soldering iron tip on the trace leading to the device, the flux will make
> the solder flow right up to the leg and you don't have to touch the the
> device with the soldering iron. I've used this method for a few years
> now and works really slick.
automated assembly by robots before soldering in an automated wave soldering
machine. But for home use and repairs, the easiest way I know of is to buy
one of those "third hand" gizmos consisting of alligator clips mounted on a
movable arm attached to a weighted base. Using the "third hand", hold a
small stylus made of very stiff wire so that the part to be soldered is
pressed into place under spring tension of the wire stylus. You are then
free to solder using both hands! (been there, done it, and it works great)
John
Technology Electronics, Ltd.
Original Message
From: Victorf <vfraenc1@n...>
To: Stamp Mailing List <basicstamps@egroups.com>
Date: Wednesday, August 23, 2000 7:16 AM
Subject: [noparse][[/noparse]basicstamps] Soldering Surface mount components
>I have bitten the bullet and have designed a PCB with surface mount
>components. I had some trouble with holding the tiny critters in place for
>soldering. I am placing both chip capacitors and a 14 pin IC and would like
>to know a technique to hold the items in place while I solder them. I use a
>fine tipped iron and some very fine solder and pre-tin the pads with
solder.
>Then I align the component and just touch the pad with the iron which seems
>to work. There must be a better way to hold the component while I
solder.Any
>ideas - some sort of glue perhaps or is there a 'sticky' solder. Any advice
>would be appreciated especially from someone who has ' been there - done
>that'.
>
>TIA
>
>Vic
>_____________________________________________________
>
>Victor Fraenckel - The Windman vfraenc1@n...
>KC2GUI
>www.windsway.com
>
> Home of the WindReader Electronic Theodolite
> Read the WIND
>
>
>
>
>
>
SOIC-to-DIP adapter kits. Let's you mount an 8-pin SOIC part onto an
adapter which you then plug into a regular DIP8 socket. Good for
prototyping. If interested, please contact me off-list. Thanks.
Steve
Steve Roberts: sroberts@s...
same thing. I haven't looked for a long time, but as I recall, they were a
SO, SS, etc. surface mount to SIP converter which conveniently fit your
breadboard.
-- Mitch
Original Message
From: "Stephen Roberts" <sroberts@s...>
To: <basicstamps@egroups.com>
Sent: Tuesday, August 29, 2000 12:18 PM
Subject: [noparse][[/noparse]basicstamps] Re: Soldering Surface mount components
> This thread might be a good place to mention that I still have some 8-pin
> SOIC-to-DIP adapter kits. Let's you mount an 8-pin SOIC part onto an
> adapter which you then plug into a regular DIP8 socket. Good for
> prototyping. If interested, please contact me off-list. Thanks.
>
> Steve
>
>
> Steve Roberts: sroberts@s...
>
>
>
>