I am planning to buy some Blueradios BlueTooth modules from Sparkfun, and for a portable application I was thinking of using the BR-C30 (the SMD version)
The point id about its soldering: from the datasheet I saw that it has 3 pads (25,26,27, with 26 not connected) to be soldered to GND, but being these pads under the module, how is possible to solder them?
I am waiting for an hot air station (I’ve already ordered it, an Aoyue), but will it be capable of solder those pads?
Has anybody a previous experience about soldering those modules?
In the PCB design you should have vias under the pads to be used as heat ducts. Apply solder paste to those pads then heat up the pads through the vias on the bottom.(with the hot air) Even better, you can use a hotpplate with solderPaste and you wouldn’t need vias then.
Anyway, can someone point me out a website or something similiar where I can find a guide to hot air soldering? all what I’ve found is about desoldering/rework.
TSPRAP:
In the PCB design you should have vias under the pads to be used as heat ducts. Apply solder paste to those pads then heat up the pads through the vias on the bottom.(with the hot air) Even better, you can use a hotpplate with solderPaste and you wouldn’t need vias then.
I’ve used a large via for this type of chip, heated it with the soldering iron tip and fed solder in.
Check out http://www.zeph.com. IIRC, they have some demos of their gear online.
I’ve been very happy using their kit down to 0402 parts with no problem; however, the pre-heater will be key to not baking your parts or blowing them off the board with the air pencil. Not to mention being mandatory for working with planes (that suck the heat out of your pads).