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chip soldering service

chip soldering service

2014-07-04 by joeprice@...

After receiving the AD9866  64LFCSP chip and reading about methods of soldering I'm not sure that
without additional equipment such as a reflow oven I'll be able to solder it. I have a Hakko 
850 SMT hot air station but I don't think this will be sufficient.
Before starting a the toaster oven conversion does anyone have a link for somebody

in the States that can provide this service?


Thanks  Joe

Re: [Homebrew_PCBs] chip soldering service

2014-07-04 by Jean-Paul Louis

Joe,
If you have the Hakko 850B, the only thing you need is a square nozzle.
But you do not need the exact shape, one that is close (just a bit bigger) should work OK.
you put solder paste on the pads, place the part carefully, and then reflow.

I use an embossing gun ($14 at Hobby Lobby) to reflow most of my parts up to 100 QFP without trouble.
above 100, it is a bit tricky but feasible.

My $0.02,
Jean-Paul
AC9GH


On Jul 4, 2014, at 10:34 AM, joeprice@... [Homebrew_PCBs] <Homebrew_PCBs@yahoogroups.com> wrote:

>
> After receiving the AD9866 64LFCSP chip and reading about methods of soldering I'm not sure that
> without additional equipment such as a reflow oven I'll be able to solder it. I have a Hakko
> 850 SMT hot air station but I don't think this will be sufficient.
> Before starting a the toaster oven conversion does anyone have a link for somebody
>
> in the States that can provide this service?
>
>
> Thanks Joe
>
>
>

Re: chip soldering service

2014-07-05 by alienrelics@...

The tough part with that package is getting the large pad on the bottom soldered to the board. If the PCB has a lot of plated-through holes under the chip, that can help, at least with inspection after the fact to make sure that large pad soldered. Do you have a board preheater?

Tenma Mini SMD Preheater | 21-10135 (2110135) | Tenma
Tenma Mini SMD Preheater | 21-10135 (2110135) | Tenma
Order Mini SMD Preheater - 21-10135 online from MCM Electronics. Manufactured by tenma. MCM part number 21-10135.
View on www.mcmelectronics...
Preview by Yahoo

 

Ugh. Yahoo really horks up the links, now. Let me try a link to just the picture of it:



Even an electric fry pan can be used for surface mount soldering. It helps, reportedly, if you have a glass lid to put on it.

Frying Pan SMD Reflow Soldering
Frying Pan SMD Reflow Soldering
Another example of frying pan reflow soldering
View on youtu.be
Preview by Yahoo

 


Steve Greenfield AE7HD


---In Homebrew_PCBs@yahoogroups.com, <joeprice@...> wrote :

After receiving the AD9866  64LFCSP chip and reading about methods of soldering I'm not sure that
without additional equipment such as a reflow oven I'll be able to solder it. I have a Hakko 
850 SMT hot air station but I don't think this will be sufficient.
Before starting a the toaster oven conversion does anyone have a link for somebody

in the States that can provide this service?


Thanks  Joe

Re: [Homebrew_PCBs] Re: chip soldering service

2014-07-05 by Leon Heller

On 05/07/2014 17:21, alienrelics@... [Homebrew_PCBs] wrote:
> The tough part with that package is getting the large pad on the bottom
> soldered to the board. If the PCB has a lot of plated-through holes
> under the chip, that can help, at least with inspection after the fact
> to make sure that large pad soldered. Do you have a board preheater?

For hand soldering I use a single large via in the pad with a large
soldering iron tip.

Leon
--
Leon Heller
G1HSM

Re: [Homebrew_PCBs] Re: chip soldering service

2014-07-05 by joeprice@...

All,

I don't have the boad yet. As this is a 4 layer board  I'm not sure if has Via or not.  The reason for post is that the
AD9866 is expensive to ruin and the board may be a one of.
I only have a cup warmer that was used in the past I'm not sure it can be used or not.
I will try to find a square nozzle for the Hakko. Whats a good solder paste to use?

Tnx   Joe  wa9cgz