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Subject: Re: Exposed pads

From: alienrelics@...
Date: 2016-08-28

I think you mean "solder", not "weld".

You mean the metal square on the bottom of some surface mount ICs. Yes, that can be difficult without a soldering oven.

Are you making your own PCBs? If not, you should have a lot of solder vias (plated through holes) under the exposed pad. I find I can solder these with a temperature controlled iron and a lot of liquid flux. If you only add solder to one hole, you can see when the solder flows and coats by looking in the other holes.

https://www.maximintegrated.com/en/images/appnotes/3879/3879Fig02.jpg

 



Of course, solder this after soldering the leads down.


Steve Greenfield AE7HD



---In Homebrew_PCBs@yahoogroups.com, <iz5fcy@...> wrote :

Hi to all,
as we possible to weld the exposed pads IC, not having an oven?

Thanks in advance,

IZ5FCY Roberto