Dexter Makes a peroxide/biflouride based chemistry that is effective in 
removing 63/37 tin /lead from circuit boards. The chemistry is called SS-2853.

Contact:
Dexter
Mike Monnin
206-486-8320


[log in to unmask] Wrote:
| 
| I'm looking for chemistries/recipes that will be effective 
| in stripping 90/10 
| tin-lead alloys off of copper leadframe devices (7025 and 
| 194 Cu) that will 
| leave the copper intact.  I don't really care what happens 
| to the plastic 
| packaging.  I know tin and/or tin-lead is used as an etch 
| resist in the PCB 
| industry, whatever chemistries are in use will probably 
| work for me.  
| 
| Thanks in advance for your responses.
| 
| Tracy Tennant
| Reliability Engineer
| Micron Technology, Inc.
| [log in to unmask]
| 
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