[NLRS] Re: LFCSP (was re:power measurement)

[Dr. Gerald N. Johnson]

On Mon, 2006-02-13 at 10:06 -0600, Chris Elmquist wrote:
> 
> On Friday (02/10/2006 at 04:57PM -0600), Ford Peterson wrote:
> > Chris moaned...
> 
> Was it that obvious?  :-)   I apologize too for hijacking W0JT's thread
> about power meters.  Thanks for changing the subject line.
> 
> I appreciate the comments on how to work with these SMT parts.  I am
> familiar with a number of the SMT work processes including hot air
> workstations and all that.  I guess I was just hoping to run into some
> novel prototype techniques that might not require fabbing a PCB-- such as
> adapter boards or whatever.   But I haven't found any answers down that
> path other than just popping for the eval boards (which I have done).
> If the thing pans out, then I'll go make a board and probably tool up
> for SMT rework since clearly there are fewer and fewer options now days.
> 
> I guess this is where I get to start telling the story about how when
> I was a kid... and candy bars were a nickle... and all that.
> 
> Thanks and 73,
> 
> Chris NØJCF
> 
I've thought of a heat source for soldering these chip scale pieces to
boards. Remember the solder sucker irons with a hollow tip. Put a
ceramic sleeve around the outside for protection and blow dry air or dry
nitrogen through the hollow tip. It should be hot enough to melt solder
paste and so solder the chips to the board.

73, Jerry, K0CQ