In SX Microcontrollers, SX/B Compiler and SX-Key Tool, robotworkshop wrote:

I am certainly not a fan of this new RoHS lead free solder either.  With the grainy look of the solder the finished connections do look like cold solder joints and makes me wonder ow they will hold up.  When I made up a module based on the surface mount SX48 the discussion came up about the RoHS solder too.

http://forums.parallax.com/forums/default.aspx?f=7&p=1&m=166781

At the moment I still use the normal leaded solder to attach the CPU and MAX232 chip.  The only place i've started using the RoHS solder is with the larger caps on the board (for the max232) and sometimes the voltage regulator.  For now i'm using it here because I happen to have a spool of the RoHS solder and need to use it up somewhere.

I'm curious as to why cleaning the boards may be causing problems with the new solder.  Are they that much different?  For my own stuff I just use a combination of rubbing alcohol with a tooth brush and sometimes some regular flux remover from a can.  I try not to use the flux spray unless I have too since that is pretty nasty stuff.

Are there any plans on making RoHS mandatory in the US??  If so I suppose we should all stock up on our regular solder now while we can still get it.

Robert

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